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Central Water Commission

Design Flood Study of Maithon Dam

Dam Rehabilitation and Improvement Project (DRIP)

March 2017

EGE_JH05HH0008_TDFA_001_A

Quality Control:

Version Date Writers/Contributors Checked by

1 09/03/2017 Ashoke Basistha (AB) VK Kapoor (VKK)

Issued/Copied to:

I/C Date Name Organisation Issued 09/03/2017 Sh. Pramod Narayan Central Water Commission


Page i

Design Flood Study of Maithon Dam March, 2017

Index

Executive Summary (vii)

Contents

1. Introduction ....................................................................................................1

1.1 General .............................................................................................................1

1.2 The Ganga Basin ...............................................................................................1

1.3 Maithon Reservoir Project.................................................................................2

1.1 Upstream and Downstream Projects .................................................................3

1.2 Geographical Features ......................................................................................3

1.3 Earlier Design Flood Studies..............................................................................4

2. Design Flood Estimation ................................................................................11

2.1 Hydro-Meteorological Approach .....................................................................11

2.2 Unit Hydrograph .............................................................................................12

2.2.1 Physiographic Parameters for Derivation of Unit Hydrograph ...................13

2.2.2 Unit Hydrograph for Sub-catchments ........................................................17

2.3 Design Storm ..................................................................................................18

2.3.1 Design Storm Duration .............................................................................18

2.3.2 Time Distribution of Rainfall .....................................................................19

2.4 Design Loss Rate .............................................................................................27

2.5 Critical Sequencing of Effective Rainfall ...........................................................28

2.6 Base Flow .......................................................................................................34

2.7 Flood Routing Through Channel Reaches .........................................................34

2.8 Alternatives Considered for Arriving at Peak Inflow at Maithon .......................36

2.9 Design Flood Hydrograph ...............................................................................36

2.10 Discussions and Conclusions .........................................................................38


Page ii

List of Tables

Table No. Description Page No.

2.1 Parameters of Unit Hydrograph 17 2.2 Physiographic parameters of the sub-catchments 17 2.3 Values of Unit Hydrograph Parameters for Sub-catchments 18 2.4 PMP Values for Maithon Sub-catchments 18 2.5 Rainfall Distribution for Barakar Catchment R1 for 24 and 48 hours 19

2.6 Rainfall Distribution for Barakar Catchment R2-R5 for 24 and 48 hours 20

2.7 Total Rainfall in 4 Bells 21 2.8 Normalized Rainfall Distribution for 12 hours for Sub-catchment R1 21

2.9 Normalized Rainfall Distribution for 12 hours for Sub-catchment R2-R5 22

2.10 Hourly Rainfall Distribution for Sub-catchment Barakar R1 for 12 Hours 22

2.11 Hourly Rainfall Distribution for Sub-catchments Barakar R2-R5 for 12 Hours 23

2.12 Hourly Cumulative Rainfalls in Each Bell for Sub-catchment Barakar R1 24

2.13 Hourly Cumulative Rainfalls in Each Bell for Sub-catchments Barakar R2 & R3 24

2.14 Hourly Cumulative Rainfalls in Each Bell for Sub-catchments Barakar R4 & R5 25

2.15 Hourly Rainfalls in Each Bell for Sub-catchment Barakar R1 26 2.16 Hourly Rainfalls in Each Bell for Sub-catchments Barakar R2 & R3 26 2.17 Hourly Rainfalls in Each Bell for Sub-catchments Barakar R4 & R5 26 2.18 Effective Rainfalls in Each Bell for Sub-catchment Barakar R1 27 2.19 Effective Rainfalls in Each Bell for Sub-catchments Barakar R2 & R3 28 2.20 Effective Rainfalls in Each Bell for Sub-catchments Barakar R4 & R5 28

2.21 Critical Sequence of Hourly Effective Rainfalls for Sub-catchment Barakar R1 considering Unit Hydrograph of Sub-catchment Barakar R4

29

2.22 Critical Sequence of Hourly Effective Rainfalls for Sub-catchments Barakar R2 & R3 considering Unit Hydrograph of Sub-catchment Barakar R4

29

2.23 Critical Sequence of Hourly Effective Rainfalls for Sub-catchments Barakar R4 & R5 considering Unit Hydrograph of Sub-catchment Barakar R4

30

2.24 Reverse Critical Sequence of Effective Rainfalls for Sub-catchment 30


Page iii

Table No. Description Page No.

Barakar R1 considering Unit Hydrograph of Sub-catchment Barakar R4

2.25 Reverse Critical Sequence of Effective Rainfalls for Sub-catchments Barakar R2 & R3 considering Unit Hydrograph of Sub-catchment Barakar R4

31

2.26 Reverse Critical Sequence of Effective Rainfalls for Sub-catchments Barakar R4 & R5 considering Unit Hydrograph of Sub-catchment Barakar R4

31

2.27 Channel Parameters for Muskingum Routing 36 2.28 Design Flood Hydrograph at Maithon Dam 36


Page iv

List of Figures

Figure No. Description Page No.

1.1 Index Map of Maithon Dam 3 1.2 Ganga Basin Map 7

1.3 Landsat Natural Colour Composite Image of the Maithon Dam Catchment acquired on 21st December 2016 9

1.4 Elevation Zone Map of the Maithon Dam Catchment 9 1.5 Slope Map of the Maithon Dam Catchment 10 2.1 Sub-catchments of Maithon Dam Catchment 12 2.2 Parameters for Estimation of Equivalent Stream Slope 14

2.3 Centroid, Longest Stream and Stream to Centroid for Sub-catchments 15

2.4 Unit Hydrograph Parameters 16

2.5 Interpolated and Adjusted Cumulative Rainfall Distribution for Sub-catchment Barakar R1 22

2.6 Interpolated and Adjusted Cumulative Rainfall Distribution for Sub-catchments Barakar R2-R5 23

2.7 Hourly Distribution of Rainfall Excess Values for Sub-catchment Barakar R1 32

2.8 Hourly Distribution of Rainfall Excess Values for Sub-catchments Barakar R2 & R3 33

2.9 Hourly Distribution of Rainfall Excess Values for Sub-catchments Barakar R4 & R5 33

2.10 Channel Reaches for Sub-catchments of Maithon Dam 34 2.11 Design Flood Hydrograph at Maithon Dam 38


Page v

List of Annexure

Annexure No. Description Page No.

Annexure I Salient Features of the Maithon Dam 39

Annexure II Adjusted Unit Hydrographs for Sub Catchments of Maithon Dam 41

Annexure III Design Storm for Maithon Dam Project by IMD 57

Annexure IV Computations of Flood Hydrographs for Sub-catchments of Maithon Dam 63

Annexure V Computations of Channel Routing for Maithon Dam Catchment using Muskingum method 81


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Page vii

EXECUTIVE SUMMARY

The Maithon Dam is located at latitude 23°47ʹ13.06ʺ north and longitude 86°49ʹ01.44ʺ east on river Barakar at Maithon in District Dhanbad in the state of Jharkhand. It is in the Lower Ganga basin. The catchment area up to Maithon Dam has been estimated as 6388.69 km², using SRTM DEM. The height of the dam is 56.08 m. The dam has a total length of 4426.76 m comprising 4064.35 m long earthen embankment and 362.41 m long concrete overflow section. The reservoir has a live storage capacity of 441.64 Mm³ and a gross storage capacity of 1,093.54 Mm³. The project was constructed between 1951 and 1957. The spillway has been designed to pass a maximum discharge 13,592 m3/s. As per criteria specified in BIS 11223-1985, the dam qualifies for a large dam and should therefore be designed to safely pass Probable Maximum Flood (PMF). This report deals with the estimation of design flood for the dam following current practices.

The estimation of design flood for the project has been carried out by hydro-meteorological approach. For this purpose, the catchment area up to Maithon Dam has been divided 5 sub-catchments. In the absence of adequate observed data, synthetic unit hydrograph for each sub-catchment has been prepared following the methodology suggested in Flood Estimation Report for Lower Ganga Subzone – 1(g), November 1994, by the Central Water Commission (CWC). The estimated floods from the sub-catchments were routed through 4 channel reaches to arrive at the design flood at the Maithon Dam.

The design storm rainfall (Probable Maximum Precipitation, PMP) assessed by IMD for the Maithon catchment has been used. For sub-catchments R1, R2 & R3 and R4 & R5 of the Maithon Dam catchment, IMD has estimated one day Probable Maximum Precipitation (PMP) of 43.2 cm, 37.6 cm and 37.4 cm respectively and two day PMP values of 66.8 cm, 64.5 cm and 64.0 cm respectively. These were used as design storm rainfalls.

The design flood study was carried out using Microsoft Excel spreadsheets developed for the purpose. The loss rate and base flow have been adopted from FER 1(g).

The peak of PMF has been estimated as 19,049 m3/s.


Page viii



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1. IntroductionA brief sketch of the Ganga Basin and the Maithon Dam catchment has been presented

in the following sub-sections, to provide a background for the current study.

1.1 General The Maithon Dam Project is located on the River Barakar, a tributary to the River

Damodar in District Dhanbad of the state of Jharkhand. The River Damodar is a

tributary to the River Ganga. Following BIS 11223-1985, the dam has been categorized

as a large dam due to its storage and height. Accordingly, the design flood is Probable

Maximum Flood (PMF). This report deals with the estimation of PMF for the dam.

1.2 The Ganga Basin The River Ganga originates in the Himalayas as Bhagirathi, in the District Uttarkashi of

the State of Uttarakhand. The River Bhagirathi comes out of the Gaumukh Glacier at

Gaumukh, an elevation of about 4255 m above the mean sea level. The River Bhagirathi

is joined by the River Alaknanda at Devprayag. The combined stream flows through the

mountains as Ganga, before entering the plains at Rishikesh. It is joined by a large

number of tributaries on both the banks through its total course of 2,525 km, before it

debouches into the Bay of Bengal. The important tributaries are the Yamuna, the

Ramaganga, the the Betwa, the Chambal, the Gomti, the Ghagra, the Kali, the Sone, the

Gandak, the Burhi Gandak, the Kosi, the Damodar and the Mahananda.

The Ganga Basin extends between longitude 73° 02ʹeastto 89° 05ʹ east and latitude 21°

06ʹ north to 31° 21ʹ north, spread over four countries, viz., India, Nepal, Tibet (China),

and Bangladesh. It covers an area of 10, 86,000 km². The major part of the basin (8,

62,769 km²) is in India, comprising about 26.2% of the total geographical area of the

country. It is spread over the states of Uttarakhand, Himachal Pradesh, Uttar Pradesh,

Rajasthan, Haryana, Delhi, Chhattisgarh, Jharkhand, Bihar and West Bengal. The basin is

bounded by the Himalayas on the north, the Aravalli on the west, the Vindhyas and

Chottanagpur plateau on the south and the ridge separating Brahmaputra Basin on the

east.


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The climate of the basin is “Tropical Monsoon type”, dominated by the southwest

monsoon which brings in major fraction (about 84%) of the annual rainfall. Spells of

heavy rainfall are also received during tropical cyclones, which originate in the Bay of

Bengal in the months of June to October. Only a small amount of rainfall occurs in the

winter months of December and January, usually caused by the western disturbances.

The western part of the basin is hot and arid, whereas the eastern part is warm and hot.

The average annual rainfall varies from about 760 mm at the western end of the basin

to more than 2,290 mm at the eastern end. There is high seasonal variability in the total

amount of rainfall as well as its spatial distribution. Accordingly, the river shows a

marked seasonal variation in flow. From April to June, the low flows in the river is

mostly supported by the melting of Himalayan snows. The heavy rains brought during

the monsoon months of July to September leads to high flows, sometimes causing

floods. The river flow declines during the winter months.

The mean maximum daily temperature even in the coldest month (January) does not

drop below 21°C, except in the higher hills. Usually, May is the hottest month. The mean

daily maximum temperature in May shoots up to 40°C near west of Gaya (Gangetic

plains) and 42.3°C in Kota (Central Indian upland). The average annual mean

temperature is 24.82°C. The average annual maximum temperature is 31.22°C and the

average annual minimum temperature is 18.44°C.

1.3 Maithon Reservoir Project The Maithon Dam is located at latitude 23°47ʹ13.06ʺ north and longitude 86°49ʹ01.44ʺ

east on the River Barakar. The Maithon town is situated just downstream of the dam. A

few other nearby habitations include Anand Bihar, Hadla, Kamaliya, Netaji Nagar,

Debipur and Beliyad. The catchment area spreads over the districts Dhanbad, Jamtara,

Giridih, Kodarma, Hazaribag and Chatra of the state of Jharkhand. The catchment area

has been estimated as 6391.74 km², using SRTM DEM. It extends between latitude

23°46ʹ34.12ʺ north and longitude 85°09ʹ16.26ʺ east, to latitude 24°32ʹ09.80ʺ north and

longitude 86°53ʹ19.20ʺ east. The dam has a height of 56.08 m above the lowest river

bed level and a total length of 4426.76 m comprising 4064.35 m long earthen

embankment and 362.41 m long concrete overflow section. The reservoir has a gross


Page 3 of 100

storage capacity of 1,093.54 Mm³ and a live storage capacity of 441.64 Mm³. The

project was constructed between 1951 and 1957. The spillway, comprising 12 bays

with gates 12.19 m wide and 12.50 m high gates over Ogee profile, was originally

designed to pass a maximum discharge 13,592 m³/sec. The index map of Maithon Dam

is shown in Figure 1.1. Salient features of the dam are in Annexure I.

1.1 Upstream and Downstream Projects Tilayia Dam is the nearest project upstream of Maithon Reservoir, and Durgapur

Barrage is the nearest project downstream.

For the purpose of estimation of design flood in this study, attenuation and translation

of flood peak during their passage through the upstream reservoirs have been ignored,

as during such extreme events the reservoirs may be expected to be full, with the

spillways discharging the inflow at maximum capacity.

1.2 Geographical Features

The Ganga Basin mostly has level plains or slopes which are very gentle in general. But

some parts of Uttarakhand, in the Lesser Himalayas and the Shiwalik ranges, has steep

slopes. Steep slopes are also found in some parts of Madhya Pradesh. The lower parts of

the basin viz., Jharkhand, Chhattisgarh and West Bengal, as also parts of Rajasthan have

a gentle slope. A map showing the location of project catchment within the Ganga Basin

has been presented in Figure 1.2. It shows that the project catchment is in Lower Ganga

catchment number 324. The figure also shows the location of rain gauges maintained by

IMD and river gauging stations maintained by the CWC within the basin.

Landsat L8 natural colour composite image of the project catchment acquired on 21st

December 2016 has been shown in Figure 1.3. This shows the presence of forest in

limited patches near the southern edge of the catchment. Most part of the catchment

presents a barren look, as the paddy crop cultivated in the plains appear to have been

harvested.

A map showing the elevation zones within the project catchment up to the Maithon

Dam, based on SRTM DEM has been portrayed in Figure 1.4. This brings out that the

elevation in the project catchment varies between 123 to 1359 m. The Slope Map of the


Page 4 of 100

Maithon Dam Catchment has been presented in Figure 1.5. It shows that most part of

the catchment is relatively flat, having a slope of 3% to 10%. High slopes are present

only near the hills bordering the southern edge of the catchment

The Ganga basin is home to a wide variety of soils. Alluvial soil, endowed with rich soil

nutrients, covers more than 52 percent of the basin. While most parts of the Ganga

Basin is covered with soil of fine texture, there are some parts of Uttarakhand and Bihar,

which have soils of very course texture, sometimes rocks. Soils with course texture is

also noticed in parts of Haryana and Rajasthan.

The major part of the Ganga basin (65.57 %) is under agriculture. Other major land

cover types are deciduous forest (16 %), wasteland (8.89 %), built up land (4.28 %),

water bodies (3.47 %), snow / glaciers (0.94 %) and grassland (0.85 %).

The Ganga Basin supports nearly 600 million people, which includes some of the most

densely populated regions of the world. It has 1949 cities and towns, with an estimated

population of 125 million.

1.3 Earlier Design Flood Studies The original design flood had a magnitude of 14724 m³/s. Details of the estimation

procedure could not be obtained.


Page 5 of 100

Figure 1.1: Index Map of Maithon Dam


Page 6 of 100



Page 7 of 100

Figure 1.2: Ganga Basin Map


Page 8 of 100



Page 9 of 100

Figure 1.3: Landsat Natural Colour Composite Image of the Maithon Dam

Catchment acquired on 21st December 2016

Figure 1.4: Elevation Zone Map of the Maithon Dam Catchment


Page 10 of 100

Figure 1.4: Slope Map of the Maithon Dam Catchment


Page 11 of 100

2. Design Flood Estimation The study for design flood estimation of Maithon Dam has been discussed in brief under

the following sub-sections.

BIS 11223 -1985 stipulates that for the dams having gross storage more than 60 Mm³ or

the hydraulic head more than 30 m, the inflow design flood for safety of the dam should be

Probable Maximum Flood (PMF).

Because of its large gross storage of 1,093.54 Mm³ and dam height of 56.08 m, Maithon

Dam is categorized as large dam. So the applicable design flood is Probable Maximum

Flood (PMF).

2.1 Hydro-Meteorological Approach For the current study, the design flood estimation has been carried out using hydro-

meteorological approach. In this approach the design flood estimation involves

derivation of catchment response function (unit hydrograph), establishing critical

design storm hyetograph and application of convolution to obtain the storm

hydrograph. For a catchments larger than 5,000 km², the unit hydrograph approach

cannot be applied directly. In such cases, the entire catchment has to be divided into

several sub-catchments. Estimation of flood hydrograph has to be carried out for each of

the individual sub-catchments, using unit hydrograph derived for the same. Finally,

these hydrographs are needed to be routed through the connecting river reaches, to

arrive at the design flood at the catchment outlet point.

The steps involved can be summarized as:

• Dividing the catchment into suitable sub-catchments

• Derivation of unit hydrograph for each of the sub-catchment

• Choosing a suitable loss rate for design storm rainfall

• Establishing the critical sequence of effective rainfall for obtaining the largest

flood peak magnitude

• Estimation of base flow contribution

• Computation of flood hydrograph using the critical combination of design storm

parameters and catchment response function (unit hydrograph) for each sub-

catchment


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• Routing the flood hydrographs through river reaches and reservoirs as

applicable and adding up to arrive at the design flood hydrograph at the

catchment outlet.

2.2 Unit Hydrograph The unit hydrograph (UH) is the hydrograph of direct runoff resulting from one unit (1

cm) of rainfall excess occurring uniformly over the catchment at a uniform rate during a

specific period of time (unit duration). The Maithon catchment is very flat. The

catchment up to Maithon Dam was divided into 5 sub-catchments ranging between

910.66 km² and 1768.83 km², following the delineation pattern adopted by the DVC and

the IMD for estimation of the design storm rainfall. As concurrent rainfall and runoff

data for flood events was not available, synthetic unit hydrographs were prepared for

each sub-catchment following the methodology suggested in Flood Estimation Report

for Lower Ganga Subzone 1(g) by the Central Water Commission (November, 1994),

based on physiographic parameters derived from SRTM DEM. The sub-catchments are

shown in Figure 2.1 below.

Figure 2.1: Sub-catchments of Maithon Dam Catchment


Page 13 of 100

2.2.1 Physiographic Parameters for Derivation of Unit Hydrograph The physiographic parameters considered are:

• Catchment area (A in km²)

• Length of the longest stream (L in km)

• Length of longest stream from a point near the centre of gravity of the catchment

to the catchment outlet (Lc in km)

• Equivalent slope (S) is computed using formula

푆 = {∑퐿 × (퐷 + 퐷 )} 퐿⁄

Where,

S = Equivalent stream slope in m/km

퐿 = Length of the ith stream segment in km

퐷 = Elevation (R.L.) of river bed at the point of study in m

The physiographic parameters considered for estimation of equivalent stream slope

have been presented in Figure 2.2.


Page 14 of 100

Where: L: Length of longest stream course (km) li: l1, l2, l3,......ln = Segment lengths (km)

ei: e1, e2, ....... en = contour elevation (m) Di: D0, D1, D2 ... Dn = (e0-e0), (e1-e0), (e2-e0)...... (en-e0) (m)

Figure 2.2: Parameters for Estimation of Equivalent Stream Slope

The centroid of the sub-catchments, longest streams and streams to the centroid of the

sub-catchments are shown in Figure 2.3.

e2

e3 e4

e0

e1

A

L

Y

e5

X l1 l2

l3

l4 l5

Catchment Plan

Outlet Point

CG

Lc

e5 Y

S D5

D0 =0 e0

X Datum

e₁

e₂

e₃

e₄

D₁ D₂

l₁ l₂ l₃

D₃

D₄

l₄ l₅

L- Section

1


Page 15 of 100

Figure 2.3: Centroid, Longest Stream and Stream to Centroid for Sub-catchments

The parameters of unit hydrograph are furnished in Figure 2.4 and Table 2.1. The

relationships for the derivation of these parameters, as obtained from the Flood

Estimation Report for Sub-zone 1(g) are also shown in the table.


Page 16 of 100

Here, tr: Unit Rainfall Duration adopted in a specific study (hours) Tm: Time from the start of rise to the peak of the Unit Graph (hours) Qp: Peak discharge of Unit Hydrograph (m³/s) tp: Time from the centre of rainfall excess duration to the Unit Graph Peak

(hours) W50: Width of the Unit Graph measured at 50% of peak discharge ordinate

(hours) W75: Width of the Unit Graph measured at 75% of peak discharge ordinate

(hours) WR50: Width of the rising limb of Unit Graph measured at 50% of peak discharge

ordinate (hours) WR75: Width of the rising limb of Unit Graph measured at 75% of peak discharge

ordinate (hours) TB: Base width of Unit Hydrograph (hours) qp: Qp/A (m³/s/km²) [where, A = Catchment Area (km²)]

Figure 2.4: Unit Hydrograph Parameters

WR 50

tr Tm

1 cm.

tp

Qp

WR 75

6

5

4

3

2

1

0 2 4 6

W 75

W 50

TB (hour)


Page 17 of 100

Table 2.1: Parameters of Unit Hydrograph

Sl. No. Parameter Description Relationship

1 tp Time from the centre of unit rainfall

duration to the peak of unit hydrograph (hours)

푡 = 1.1808 퐿퐿 √푠⁄ .

2 qp Peak discharge of unit hydrograph per unit area (m³/s/km²) 푞 = 2.0972 푡

.

3 W50 Width of unit hydrograph at 50 % of Qp (hours) 푊 = 1.2622 푡

.

4 W75 Width of unit hydrograph at 75 % of Qp (hours) 푊 = 0.7896 푡

.

5 WR50 Width of rising side of unit hydrograph at 50 % of Qp (hours) 푊 = 0.5357 푡

.

6 WR75 Width of rising side of unit hydrograph at 75 % of Qp (hours) 푊 = 0.3825 푡

.

7 TB Base width of unit hydrograph (hours) 푇 = 5.5830 푡.

8 Tm Time from start of rise to the peak of unit hydrograph (hours)

푇 = 푡 + 푡 2⁄

9 Qp Peak discharge of unit hydrograph (m³/s) 푄 = 푞 × 퐴

2.2.2 Unit Hydrograph for Sub-catchments The physiographic parameters mentioned above were extracted for each of the 5 sub-

catchments using SRTM DEM. Unit hydrographs were derived for each sub-catchment

following Flood Estimation Report for Lower Ganga Subzone 1(g) by the Central Water

Commission (November, 1994). The physiographic parameters of all the sub-

catchments are presented in Table 2.2.

Table 2.2: Physiographic parameters of the sub-catchments

Sub-Catchment

Area (km²)

Length of Longest Stream (km)

Length of Stream to Centroid (km)

R1 910.66 65.97 32.80 R2 1768.83 92.34 39.96 R3 1225.45 75.56 30.36 R4 1451.95 93.19 38.47 R5 1031.80 79.61 29.42 ∑ 6388.69


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The values of the parameters for unit hydrograph for all the 5 sub-catchments are

given in Table 2.3.

Table 2.3: Values of Unit Hydrograph Parameters for Sub-catchments

Sub-catchment

tp (Hours)

qp (m³/s)

W50 (Hours)

W75 (Hours)

WR50 (Hours)

WR75 (Hours)

Tm (Hours)

Tb (Hours)

Qp (m³/s)

R1 18.2 0.101 23.7 10.6 6.1 3.5 19 68 92

R2 29.8 0.063 37.7 16.0 8.7 4.9 30 106 111

R3 21.2 0.087 27.3 12.0 6.8 3.9 22 78 107

R4 21.2 0.087 27.4 12.1 6.8 3.9 22 78 127

R5 24.6 0.076 31.5 13.6 7.6 4.3 25 89 78

These values were adjusted slightly to have the depth of rainfall excess over the sub-

catchment corresponding to the total volume of water under the unit hydrograph as 1

cm. These adjusted unit hydrographs are presented in Annexure II.

2.3 Design Storm The 1 day and 2 day storm rainfalls over the sub-catchments Barakar R1, R2 R3, R4 and

R5 of the Maithon Dam catchment and the associated temporal distributions as

obtained from IMD (vide report no. HS- 20/03/2015-DSU dated 17.01.2017 of the

Director General of Meteorology IMD addressed to the Manager, Reservoir Operations,

Damodar Valley Corporation, P.O Maithon Dam, District-Dhanbad, enclosed along with

the map showing the sub-catchments as Annexure III) has been used for this study.

The PMP values are given in Table 2.4 below.

Table 2.4: PMP Values for Maithon Sub-catchments

Duration PMP Values (cm) Barakar R1 Barakar R2 & R3 Barakar R4 & R5

1-day 43.2 37.6 37.4 2-day 66.8 64.5 64.0

2.3.1 Design Storm Duration For large catchments, the storm duration is generally considered as equal to 2.5 times

the time of concentration, in multiples of 24 hrs. For the Maithon catchment, the time of

concentration has been estimated using Kirpich formula as

푡 = 0.01947 × 퐿 . × 푆 .

Where, 푡 = the time of concentration in minutes


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L = length of longest travel path for water droplet in metres

S = slope = D/L

D = difference in elevation along the longest travel path in metres

For the Maithon catchment,

Length of the longest travel path = 274983 m,

Elevation at the upstream point = 603 m,

Elevation at the downstream point = 123 m

Time of concentration = 57.72 hours

Storm duration = 2.5 × 57.72 = 144.30 hours.

Hence, theoretically, a design storm duration of 72 hours needs to be adopted, as a

duration in excess of the above is generally not considered as per current practice.

However, the catchment area is only 6388.69 km². So, for the current study, design

storm duration has been adopted as 48 hours. The rainfall within the duration has been

considered to be divided into 4 spells of 12 hour each, following current practice.

2.3.2 Time Distribution of Rainfall Time distributions of 24 and 48 hour rainfall for the catchment Barakar R1 has been

given by IMD at 3 hour interval as shown in Table 2.5 below. The same for the

catchments Barakar R2, R3, R4 and R5 has been shown in Table 2.6.

Table 2.5: Rainfall Distribution for Barakar Catchment R1 for 24 and 48 hours

Time (Hours)

Cumulative Percentage of Rainfall

for 24 Hours

Cumulative Percentage of Rainfall for 48

Hours

1 24 10

3 39 21

6 56 35

9 69 44

12 79 51

15 87 56

18 93 61

21 97 66


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Time (Hours)


for 24 Hours


Hours

24 100 71

27 76

30 80

33 84

36 88

39 92

42 95

45 98 48 100

Table 2.6: Rainfall Distribution for Barakar Catchment R2-R5 for 24 and 48 hours

Time (Hours)


for 24 Hours


Hours

1 22 12

3 36 20

6 53 31

9 66 40

12 76 46

15 83 52

18 89 58

21 95 63

24 100 68

27 72

30 76

33 80

36 84 39 88 42 93


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Time (Hours)


for 24 Hours


Hours

45 96

48 100

Since the design storm duration extends beyond 12 hours, rainfall has been considered

in spells (bells) of 12 hour each. For a bell of 12 hour, the maximum rainfall that can be

realized is 79% of the rainfall in 24 hours for sub-catchment Barakar R1, and 76% of the

24 hour rainfall for sub-catchments Barakar R2, R3, R4 and R5. Thus, the rainfall in 4

bells for all the sub-catchments R1-R5 were estimated, as shown in Table 2.7

underneath.

Table 2.7: Total Rainfall in 4 Bells

Sub-catchment Rainfall (cm) 1st bell 2nd bell 3rd bell 4th bell

Barakar R1 34.13 9.07 18.64 4.96

Barakar R2 & R3 28.58 9.02 20.44 6.46

Barakar R4 & R5 28.42 8.98 20.22 6.38 The normalized rainfall distribution for 12 hours obtained from the 24 hour rainfall

distribution for sub-catchment Barakar R1 has been presented in Table 2.8. The

distribution for sub-catchments Barakar R2-R5 has been shown in Table 2.9.

Table 2.8: Normalized Rainfall Distribution for 12 hours for Sub-catchment R1

Time (Hours)


Normalized Cumulative

Percentage of Rainfall for 12 Hours

1 24 30.4 3 39 49.4 6 56 70.9 9 69 87.3

12 79 100.0


Page 22 of 100

Table 2.9: Normalized Rainfall Distribution for 12 hours for Sub-catchment R2-R5

Time (Hours)


Normalized Cumulative

Percentage of Rainfall for 12 Hours

1 22 28.9 3 36 47.4 6 53 69.7 9 66 86.8

12 76 100.0

The hourly cumulative rainfall fractions for 12 hours for sub-catchment Barakar R1 was

obtained by interpolating the 3 hourly rainfall distribution. It has been adjusted slightly

as shown in Figure 2.5 and Table 2.10. The adjusted distributions for sub-catchments

Barakar R2 to R5 has been presented in Figure 2.6 and Table 2.11. These adjusted

distributions have been used for all further analysis.

Figure 2.5: Interpolated and Adjusted Cumulative Rainfall Distribution for Sub-

catchment Barakar R1

Table 2.10: Hourly Rainfall Distribution for Sub-catchment Barakar R1 for 12 Hours

Time (Hours)

Interpolated Fraction

Adjusted Fraction

1 0.304 0.304

0.00.10.20.30.40.50.60.70.80.91.0

0 2 4 6 8 10 12

Rain

fall

Frac

tion

Time (Hours)Interpolated Adjusted


Page 23 of 100

Time (Hours)


Adjusted Fraction

2 0.399 0.400 3 0.494 0.494 4 0.565 0.567 5 0.637 0.639 6 0.709 0.710 7 0.764 0.765 8 0.819 0.819 9 0.873 0.872

10 0.916 0.916 11 0.958 0.959 12 1.000 1.000

Figure 2.6: Interpolated and Adjusted Cumulative Rainfall Distribution for Sub-

catchments Barakar R2-R5

Table 2.11: Hourly Rainfall Distribution for Sub-catchments Barakar R2-R5 for 12 Hours

Time (Hours)


Adjusted Fraction

1 0.289 0.289 2 0.382 0.382 3 0.474 0.474 4 0.548 0.549 5 0.623 0.623

0.00.10.20.30.40.50.60.70.80.91.0

0 2 4 6 8 10 12

Rain

fall

Frac

tion

Time (Hours)Interpolated Adjusted


Page 24 of 100

Time (Hours)


Adjusted Fraction

6 0.697 0.696 7 0.754 0.754 8 0.811 0.811 9 0.868 0.867

10 0.912 0.913 11 0.956 0.957 12 1.000 1.000

The hourly cumulative rainfalls in each of the four bells for sub-catchment Barakar R1

obtained using the corresponding adjusted cumulative rainfall fraction is presented in

Table 2.12 below. The hourly cumulative rainfalls in each of the four bells for sub-

catchments Barakar R2 & R3 and sub-catchments R4 & R5 have been shown in Table

2.13 and Table 2.14, respectively.

Table 2.12: Hourly Cumulative Rainfalls in Each Bell for Sub-catchment Barakar R1

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 10.37 2.76 5.67 1.51 2 13.65 3.63 7.46 1.98 3 16.86 4.48 9.21 2.45 4 19.35 5.14 10.57 2.81 5 21.81 5.80 11.91 3.17 6 24.23 6.44 13.24 3.52 7 26.11 6.94 14.26 3.79 8 27.95 7.43 15.27 4.06 9 29.76 7.91 16.26 4.32

10 31.26 8.31 17.08 4.54 11 32.73 8.70 17.88 4.75 12 34.13 9.07 18.64 4.96

Table 2.13: Hourly Cumulative Rainfalls in Each Bell for Sub-catchments Barakar R2 & R3

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 8.26 2.61 5.91 1.87 2 10.92 3.45 7.81 2.47


Page 25 of 100

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

3 13.55 4.28 9.69 3.06 4 15.69 4.95 11.22 3.54 5 17.80 5.62 12.74 4.02 6 19.89 6.28 14.23 4.49 7 21.55 6.80 15.41 4.87 8 23.18 7.32 16.58 5.24 9 24.78 7.82 17.72 5.60

10 26.09 8.24 18.67 5.89 11 27.35 8.64 19.56 6.18 12 28.58 9.02 20.44 6.46

Table 2.14: Hourly Cumulative Rainfalls in Each Bell for Sub-catchments Barakar R4 & R5

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 8.21 2.59 5.84 1.84 2 10.86 3.43 7.72 2.44 3 13.47 4.25 9.58 3.03 4 15.60 4.93 11.10 3.50 5 17.71 5.59 12.59 3.98 6 19.78 6.25 14.07 4.44 7 21.43 6.77 15.24 4.81 8 23.05 7.28 16.40 5.18 9 24.64 7.78 17.53 5.53

10 25.95 8.20 18.46 5.83 11 27.20 8.59 19.35 6.11 12 28.42 8.98 20.22 6.38

The hourly rainfalls for sub-catchment Barakar R1 obtained by subtracting each

cumulative rainfall from that of the subsequent hour is given in Table 2.15 underneath.

The hourly rainfalls for sub-catchments Barakar R2 & R3 and Barakar R4 & R5 have

been presented in Table 2.16 and Table 2.17, respectively.


Page 26 of 100

Table 2.15: Hourly Rainfalls in Each Bell for Sub-catchment Barakar R1 Time

(Hours) 1st bell

(cm) 2nd bell

(cm) 3rd bell

(cm) 4th bell

(cm) 1 10.37 2.76 5.67 1.51 2 3.28 0.87 1.79 0.48 3 3.21 0.85 1.75 0.47 4 2.49 0.66 1.36 0.36 5 2.46 0.65 1.34 0.36 6 2.42 0.64 1.32 0.35 7 1.88 0.50 1.03 0.27 8 1.84 0.49 1.01 0.27 9 1.81 0.48 0.99 0.26

10 1.50 0.40 0.82 0.22 11 1.47 0.39 0.80 0.21 12 1.40 0.37 0.76 0.20 ∑ 34.13 9.07 18.64 4.96

Table 2.16: Hourly Rainfalls in Each Bell for Sub-catchments Barakar R2 & R3 Time

(Hours) 1st bell

(cm) 2nd bell

(cm) 3rd bell

(cm) 4th bell

(cm) 1 8.26 2.61 5.91 1.87 2 2.66 0.84 1.90 0.60 3 2.63 0.83 1.88 0.59 4 2.14 0.68 1.53 0.48 5 2.11 0.67 1.51 0.48 6 2.09 0.66 1.49 0.47 7 1.66 0.52 1.19 0.37 8 1.63 0.51 1.17 0.37 9 1.60 0.51 1.14 0.36

10 1.31 0.42 0.94 0.30 11 1.26 0.40 0.90 0.28 12 1.23 0.39 0.88 0.28 ∑ 28.58 9.02 20.44 6.46

Table 2.17: Hourly Rainfalls in Each Bell for Sub-catchments Barakar R4 & R5 Time

(Hours) 1st bell

(cm) 2nd bell

(cm) 3rd bell

(cm) 4th bell

(cm) 1 8.21 2.59 5.84 1.84 2 2.64 0.83 1.88 0.59 3 2.62 0.83 1.86 0.59 4 2.13 0.67 1.52 0.48 5 2.10 0.66 1.50 0.47 6 2.07 0.66 1.48 0.47 7 1.65 0.52 1.17 0.37


Page 27 of 100

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

8 1.62 0.51 1.15 0.36 9 1.59 0.50 1.13 0.36

10 1.31 0.41 0.93 0.29 11 1.25 0.39 0.89 0.28 12 1.22 0.39 0.87 0.27 ∑ 28.42 8.98 20.22 6.38

2.4 Design Loss Rate For assessment of Probable Maximum Floods, a loss rate of 0.1 cm/ hour is currently

considered by the CWC, as the influence of soil, land use etc. have minimal influences

under such extreme conditions. So a loss rate of 0.1 cm / hour was adopted for the

current study.

The effective rainfalls for every hour for sub-catchment Barakar R1 in each of the four

bells, obtained by subtracting the loss rate from the hourly rainfalls, is shown in Table

2.18 below. The effective rainfalls for sub-catchments R2 & R3 and sub-catchments R4

& R5 have been presented in Table 2.19 and Table 2.20, respectively.

Table 2.18: Effective Rainfalls in Each Bell for Sub-catchment Barakar R1 Time

(Hours) 1st bell

(cm) 2nd bell

(cm) 3rd bell

(cm) 4th bell

(cm) 1 10.27 2.66 5.57 1.41 2 3.18 0.77 1.69 0.38 3 3.11 0.75 1.65 0.37 4 2.39 0.56 1.26 0.26 5 2.36 0.55 1.24 0.26 6 2.32 0.54 1.22 0.25 7 1.78 0.40 0.93 0.17 8 1.74 0.39 0.91 0.17 9 1.71 0.38 0.89 0.16

10 1.40 0.30 0.72 0.12 11 1.37 0.29 0.70 0.11 12 1.30 0.27 0.66 0.10 ∑ 32.93 7.87 17.44 3.76


Page 28 of 100

Table 2.19: Effective Rainfalls in Each Bell for Sub-catchments Barakar R2 & R3 Time

(Hours) 1st bell

(cm) 2nd bell

(cm) 3rd bell

(cm) 4th bell

(cm) 1 8.16 2.51 5.81 1.77 2 2.56 0.74 1.80 0.50 3 2.53 0.73 1.78 0.49 4 2.04 0.58 1.43 0.38 5 2.01 0.57 1.41 0.38 6 1.99 0.56 1.39 0.37 7 1.56 0.42 1.09 0.27 8 1.53 0.41 1.07 0.27 9 1.50 0.41 1.04 0.26

10 1.21 0.32 0.84 0.20 11 1.16 0.30 0.80 0.18 12 1.13 0.29 0.78 0.18 ∑ 27.38 7.82 19.24 5.26

Table 2.20: Effective Rainfalls in Each Bell for Sub-catchments Barakar R4 & R5 Time

(Hours) 1st bell

(cm) 2nd bell

(cm) 3rd bell

(cm) 4th bell

(cm) 1 8.11 2.49 5.74 1.74 2 2.54 0.73 1.78 0.49 3 2.52 0.73 1.76 0.49 4 2.03 0.57 1.42 0.38 5 2.00 0.56 1.40 0.37 6 1.97 0.56 1.38 0.37 7 1.55 0.42 1.07 0.27 8 1.52 0.41 1.05 0.26 9 1.49 0.40 1.03 0.26

10 1.21 0.31 0.83 0.19 11 1.15 0.29 0.79 0.18 12 1.12 0.29 0.77 0.17 ∑ 27.22 7.78 19.02 5.18

2.5 Critical Sequencing of Effective Rainfall For finding the worst critical sequence of rainfall that yields the largest flood peak at

Maithon Dam, critical sequencing of rainfall was carried out considering unit

hydrograph for each of the sub-catchments, sequentially. Analysis was carried out

considering all the feasible bell sequences. For sub-catchment Barakar R1, Bell 1 and

Bell 3 considered together has a rainfall of (34.13 + 18.64 =) 52.77 cm, which is greater

than the 24 hour rainfall of 1.15 × 43.20 cm = 49.68 cm. Similarly, for sub-catchments


Page 29 of 100

Barakar R2 & R3, Bell 1 and Bell 3 considered together has a rainfall of (28.58 + 20.44

=) 49.02 cm, which is greater than the 24 hour rainfall of 1.15 × 37.60 cm = 43.24 cm.

Therefore, the bell sequences with consequent placement of bell 1 and bell 3 are not

feasible.

Critical sequencing of hourly rainfall excess values in each bell was carried out, i.e., the

rainfall excess values were arranged in the same order by magnitude as the ordinates

of the unit hydrograph are arranged. The critical sequencing of hourly rainfalls

considering unit hydrograph of catchment Barakar R4 for sub-catchment Barakar R1

has been presented in Table 2.21 below. The critical sequencing of hourly effective

rainfalls for sub-catchments Barakar R2 & R3 and Barakar R4 & R5 have been shown in

Table 2.22 and Table 2.23, respectively.

Table 2.21: Critical Sequence of Hourly Effective Rainfalls for Sub-catchment

Barakar R1 considering Unit Hydrograph of Sub-catchment Barakar R4 Time

(Hours) UH Ord (m³/s)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 96 1.30 0.27 0.66 0.10 2 106.5 1.74 0.39 0.91 0.17 3 114 2.32 0.54 1.22 0.25 4 122 3.11 0.75 1.65 0.37 5 127 10.27 2.66 5.57 1.41 6 126 3.18 0.77 1.69 0.38 7 121 2.39 0.56 1.26 0.26 8 116 2.36 0.55 1.24 0.26 9 110 1.78 0.40 0.93 0.17

10 106 1.71 0.38 0.89 0.16 11 102 1.40 0.30 0.72 0.12 12 98 1.37 0.29 0.70 0.11 ∑ 32.93 7.87 17.44 3.76

Table 2.22: Critical Sequence of Hourly Effective Rainfalls for Sub-catchments Barakar R2 & R3 considering Unit Hydrograph of Sub-catchment Barakar R4

Time (Hours)

UH Ord (m³/s)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 96 1.13 0.29 0.78 0.18 2 106.5 1.53 0.41 1.07 0.27 3 114 1.99 0.56 1.39 0.37 4 122 2.53 0.73 1.78 0.49 5 127 8.16 2.51 5.81 1.77 6 126 2.56 0.74 1.80 0.50 7 121 2.04 0.58 1.43 0.38


Page 30 of 100

Time (Hours)

UH Ord (m³/s)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

8 116 2.01 0.57 1.41 0.38 9 110 1.56 0.42 1.09 0.27

10 106 1.50 0.41 1.04 0.26 11 102 1.21 0.32 0.84 0.20 12 98 1.16 0.30 0.80 0.18 ∑ 27.38 7.82 19.24 5.26

Table 2.23: Critical Sequence of Hourly Effective Rainfalls for Sub-catchments Barakar R4 & R5 considering Unit Hydrograph of Sub-catchment Barakar R4

Time (Hours)

UH Ord (m³/s)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 96 1.12 0.29 0.77 0.17 2 106.5 1.52 0.41 1.05 0.26 3 114 1.97 0.56 1.38 0.37 4 122 2.52 0.73 1.76 0.49 5 127 8.11 2.49 5.74 1.74 6 126 2.54 0.73 1.78 0.49 7 121 2.03 0.57 1.42 0.38 8 116 2.00 0.56 1.40 0.37 9 110 1.55 0.42 1.07 0.27

10 106 1.49 0.40 1.03 0.26 11 102 1.21 0.31 0.83 0.19 12 98 1.15 0.29 0.79 0.18 ∑ 27.22 7.78 19.02 5.18

The reverse critical sequencing of these rainfall excess values were done to maximise

the flood peak, as suggested by the CWC. The rainfall excess values in reverse critical

sequence for sub-catchment Barakar R1 considering unit hydrograph for sub-

catchment Barakar R4 is given in Table 2.24 below. The reverse critical sequence of

hourly rainfall excess values for sub-catchments Barakar R2 & R3 and Barakar R4 & R5

have been shown in Table 2.25 and Table 2.26, respectively.

Table 2.24: Reverse Critical Sequence of Effective Rainfalls for Sub-catchment

Barakar R1 considering Unit Hydrograph of Sub-catchment Barakar R4

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 1.37 0.29 0.70 0.11 2 1.40 0.30 0.72 0.12 3 1.71 0.38 0.89 0.16 4 1.78 0.40 0.93 0.17 5 2.36 0.55 1.24 0.26


Page 31 of 100

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

6 2.39 0.56 1.26 0.26 7 3.18 0.77 1.69 0.38 8 10.27 2.66 5.57 1.41 9 3.11 0.75 1.65 0.37

10 2.32 0.54 1.22 0.25 11 1.74 0.39 0.91 0.17 12 1.30 0.27 0.66 0.10 ∑ 32.93 7.87 17.44 3.76

Table 2.25: Reverse Critical Sequence of Effective Rainfalls for Sub-catchments Barakar R2 & R3 considering Unit Hydrograph of Sub-catchment Barakar R4

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 1.16 0.30 0.80 0.18 2 1.21 0.32 0.84 0.20 3 1.50 0.41 1.04 0.26 4 1.56 0.42 1.09 0.27 5 2.01 0.57 1.41 0.38 6 2.04 0.58 1.43 0.38 7 2.56 0.74 1.80 0.50 8 8.16 2.51 5.81 1.77 9 2.53 0.73 1.78 0.49

10 1.99 0.56 1.39 0.37 11 1.53 0.41 1.07 0.27 12 1.13 0.29 0.78 0.18 ∑ 27.38 7.82 19.24 5.26

Table 2.26: Reverse Critical Sequence of Effective Rainfalls for Sub-catchments Barakar R4 & R5 considering Unit Hydrograph of Sub-catchment Barakar R4

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

1 1.15 0.29 0.79 0.18 2 1.21 0.31 0.83 0.19 3 1.49 0.40 1.03 0.26 4 1.55 0.42 1.07 0.27 5 2.00 0.56 1.40 0.37 6 2.03 0.57 1.42 0.38 7 2.54 0.73 1.78 0.49 8 8.11 2.49 5.74 1.74 9 2.52 0.73 1.76 0.49

10 1.97 0.56 1.38 0.37


Page 32 of 100

Time (Hours)

1st bell (cm)

2nd bell (cm)

3rd bell (cm)

4th bell (cm)

11 1.52 0.41 1.05 0.26 12 1.12 0.29 0.77 0.17 ∑ 27.22 7.78 19.02 5.18

A plot of the hourly distribution of the rainfall excess values for sub-catchment Barakar

R1 with bell sequence 4,1,2,3 is presented in Figure 2.7. The hourly distribution of

rainfall excess values for sub-catchments Barakar R2 & R3 and Barakar R4 & R5 have

been shown in Figure 2.8 and Figure 2.9, respectively.

Figure 2.7: Hourly Distribution of Rainfall Excess Values for Sub-catchment

Barakar R1

0

2

4

6

8

10

12

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46

Rain

fall

Exce

ss (

cm/h

our)

Time (Hours)


Page 33 of 100

Figure 2.8: Hourly Distribution of Rainfall Excess Values for Sub-catchments

Barakar R2 & R3

Figure 2.9: Hourly Distribution of Rainfall Excess Values for Sub-catchments

Barakar R4 & R5

0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46

Rain

fall

Exce

ss (

cm/h

our)

Time (Hours)

0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46

Rain

fall

Exce

ss (

cm/h

our)

Time (Hours)


Page 34 of 100

2.6 Base Flow For the purpose of this study, the base flow rate has been adopted as 0.045 m³/s/km²,

as recommended by the Flood Estimation Report for Lower Ganga Plains Subzone-1

(November, 1994). Computations for flood hydrograph from each of the 5 sub-

catchments are presented in Annexure IV.

2.7 Flood Routing Through Channel Reaches Since the catchment up to the Maithon reservoir has been divided into 5 sub-

catchments, the flood hydrograph generated from each of them was routed through the

connecting channel reaches, as shown in Figure 2.10. In the absence of observed

channel cross sections, Muskingum method has been applied for this purpose. In this

method, the storage and in-turn, outflow from a reach is related to the inflow into the

reach and the outflow from the reach in the previous time step.

Figure 2.10: Channel Reaches for Sub-catchments of Maithon Dam


Page 35 of 100

The governing equation for channel routing using Muskingum method is written as

S = K×Q + K× (I-Q) = K× [X×I + (1-X) × Q] where:

S = total storage in the reach (m3)

K = storage time constant, representing the time of travel of a flood wave passing

through the routing reach.

X = dimensionless coefficient to weigh relative effects of inflow and outflow on

reach storage

I = inflow (m3/s)

Q= outflow (m3/s)

Combining the storage equation and continuity equation, the Muskingum routing

equation is written as:

Qt+1 = C0It+1 + C1It + C2Qt

Where,

tXKKXtC

5.0)1(5.0

0

tXKKXtC

5.0)1(5.0

1

tXKtXKC

5.0)1(5.0)1(

2

In the absence of observed hourly inflow and outflow data for the different reaches, the

value of X has been assumed as 0.2 for all the reaches, which is a value most commonly

considered.ThetimestepforroutingΔtwasconsideredas1hour.The value of K has

been estimated using Muskingum Cunge approach, considering average speed of the

flood peak as 9 km/hour, as the general slope of the area appear to be very flat. For

reaches longer than 10 km, it was sub-divided into reaches of about 10 km length each.


Page 36 of 100

The channel parameters considered for Muskingum routing of the river reaches

upstream of Maithon Reservoir are presented in Table 2.27 below.

Table 2.27: Channel Parameters for Muskingum Routing Sl. No. Name Length

(km) No of Sub-Reaches

K for Entire Reach

1 RR1 73.41 7 8.2 2 RR2 53.00 5 5.9 3 RR3 30.60 3 3.4 4 RR$ 52.05 5 5.8

The computations for channel routing through both the channel reaches using

Muskingum method have been presented in Annexure V.

2.8 Alternatives Considered for Arriving at Peak Inflow at Maithon

In order to explore the highest maximum flood peak at Maithon dam, the entire

procedure of derivation of flood hydrograph and channel routing was carried out for all

the 12 feasible alternative bell sequences with unit hydrographs for sub-catchments

Barakar R1 to Barakar R5, one by one. It was seen that the bell sequence of 4,1,2,3

considering unit hydrograph for sub-catchment Barakar R4 yields the highest flood

peak of 19,149 m³/s.

2.9 Design Flood Hydrograph The design flood hydrograph at Maithon dam have been presented in Table 2.28 and

Figure 2.11.

Table 2.28: Design Flood Hydrograph at Maithon Dam

Time (Hour)

Flood Hydrograph

(m³/s)

Time (Hour)

Flood Hydrograph

(m³/s)

Time (Hour)

Flood Hydrograph

(m³/s)

Time (Hour)

Flood Hydrograph

(m³/s) 0 288 6 298 12 377 18 660 1 288 7 304 13 403 19 745 2 289 8 313 14 437 20 856 3 290 9 325 15 478 21 985 4 292 10 339 16 529 22 1133 5 294 11 356 17 589 23 1303


Page 37 of 100

Time (Hour)

Flood Hydrograph

(m³/s)

Time (Hour)

Flood Hydrograph

(m³/s)

Time (Hour)

Flood Hydrograph

(m³/s)

Time (Hour)

Flood Hydrograph

(m³/s) 24 1497 65 18704 106 6079 147 588 25 1718 66 18868 107 5775 148 563 26 1969 67 18986 108 5482 149 539 27 2253 68 19047 109 5201 150 516 28 2567 69 19049 110 4932 151 493 29 2911 70 18991 111 4672 152 472 30 3282 71 18877 112 4421 153 451 31 3679 72 18717 113 4178 154 432 32 4100 73 18510 114 3944 155 413 33 4544 74 18263 115 3718 156 395 34 5012 75 17984 116 3501 157 378 35 5501 76 17680 117 3292 158 363 36 6020 77 17359 118 3094 159 349 37 6567 78 17026 119 2906 160 337 38 7144 79 16687 120 2728 161 326 39 7751 80 16343 121 2562 162 317 40 8376 81 15996 122 2406 163 309 41 9016 82 15645 123 2259 164 303 42 9663 83 15290 124 2121 165 298 43 10301 84 14931 125 1991 166 295 44 10917 85 14563 126 1868 167 292 45 11495 86 14182 127 1752 168 291 46 12026 87 13787 128 1642 169 289 47 12513 88 13377 129 1539 170 289 48 12966 89 12951 130 1441 171 288 49 13383 90 12510 131 1351 50 13774 91 12058 132 1268 51 14150 92 11600 133 1193 52 14516 93 11139 134 1123 53 14879 94 10680 135 1059 54 15245 95 10228 136 999 55 15613 96 9785 137 945 56 15979 97 9356 138 895 57 16342 98 8940 139 849 58 16697 99 8539 140 807 59 17040 100 8151 141 769 60 17376 101 7777 142 733 61 17694 102 7415 143 700 62 17991 103 7065 144 670 63 18263 104 6726 145 641 64 18502 105 6397 146 614


Page 38 of 100

Figure 2.11: Design Flood Hydrograph at Maithon Dam

2.10 Discussions and Conclusions 1. Estimation of inflow design flood for Maithon Reservoir has been carried out

using hydro-meteorological approach (Unit Hydrograph method). The flood

hydrographs from each of the sub-catchment has been combined at the point of

confluence and routed through the river reach. A total of 5 sub-catchments and 4

reaches for channel routing were considered in the study. The flood hydrographs

from the sub-catchments have been added and routed through the channels

following the natural drainage pattern. In this way, the peak of PMF at Maithon

Dam has been estimated as 19,049 m3/s.

2. In the absence of observed hourly discharge and rainfall data, this estimation of

design flood was carried out on the basis of synthetic unit hydrograph prepared

following methodology suggested in Flood Estimation Report for Lower Ganga

Plains Subzone 1(g) (November 1994). The physiographic parameters for

preparation of synthetic unit hydrograph were obtained from SRTM DEM. It is

desirable to validate its results using observed concurrent hourly flood discharge

along with hourly rainfall data for a few flood events. Also, information about

travel time of flood wave along the channels would help to validate the

assumptions made on channel routing.

69; 19049

0

5000

10000

15000

20000

25000

0 50 100 150 200

Disc

harg

e (m

³/s)

Time (Hours)


Page 39 of 100

Annexure I: Salient Features of Maithon Dam

The Maithon Dam is located at Maithon, 48 km from Dhanbad, in the state of Jharkhand.

It is situated about 12.9 km above the confluence of the Barakar River with the

Damodar River and has a catchment area of 6388.69 km². Maithon Dam is a composite

earth and concrete structure. Its maximum height above the foundation is 56.08 m.

Maithon hydropower station, on the left bank of the river, is an underground Power

House. The present installed capacity of the generating units is 63.5 MW.

FEW SALIENT FEATURE OF DAM:

A) GENERAL

1. Location of Dam: Located at 23˚ 47’ 13.06” North latitude and 86˚

49’ 01.44” East longitude, in Dhanbad district of

Jharkhand.

2. Access:

Maithon is about 25.7 Km from Asanol of West

Bengal and 40.2 Km from Dhanbad railway

Station of Jharkhand

B) GEOGRAPHICAL FEATURES

1. Catchment Area 6391.74 km².

2. Nature of catchment The lower valley of the Damodar is subject to

sudden floods, especially in the monsoon during

which 90% of the rainfall occurs. The first record

of such floods dates back to 1730 and since then

floods of varying intensity have occurred every 8

to 10 years.

3. Climate The Maximum temperature often crosses 40

degrees. Monsoon is strong here and it lasts

from July to September


Page 40 of 100

(C) TECHNICAL DETAILS OF THE DAM

Sl. No. Description Value

1. Gross storage capacity 1093.54 Mm³

2. Live Storage capacity 441.64 Mm³

3. Full reservoir level 152.40 m

4. Maximum Water Level 150.88 m

6. Minimum Draw Down Level 132.59 m

7. Dead Storage Level 132.59 m

8 Dam Top Level 156.06

9. Lowest foundation level 99.96 m

10. Lowest river bed level 103.63 m

11. Crest level 140.21 m

12. Height above deepest foundation level 56.08 m

13. Length of dam at top 4426.76 m

14 Width of Dam at Top 6.71 m

15. Maximum area of Water spread 99.55 Km²

16. Spillway Type Ogee

17. Type of Gates Radial

18. Size 12.5 m (Ht) × 12.19 m (W)

19. No. of Bays 12 nos.

20. Total Spillway Capacity 13592 m³/s


Page 41 of 100

Annexure II: Adjusted Synthetic Unit Hydrograph for Sub-catchments of Maithon Dam

Sub - catchment no. Barakar R1 Unit hydrograph ordinates and plot

Time (Hour)

Adjusted Ordinates

(m³/s) 0 0 1 3 2 6 3 9 4 13 5 17 6 21 7 25 8 29 9 33

10 38 11 43 12 48 13 55 14 62 15 69 16 76 17 83 18 90 19 92 20 89 21 85 22 82 23 79 24 76 25 73 26 70 27 67

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80

Dis

char

ge (m

³/s)

Duration (Hours)


Page 42 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 28 64 29 61 30 59 31 57 32 55 33 53 34 51 35 49 36 47 37 45 38 43 39 41 40 39 41 37 42 35 43 33 44 31 45 29 46 27 47 25 48 23 49 21 50 19 51 17 52 16 53 15 54 14 55 13 56 12 57 11 58 10 59 9 60 8 61 7 62 6


Page 43 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 63 5 64 4 65 3 66 2 67 1 68 0


Page 44 of 100


Time (Hour)

Adjusted Ordinates

(m³/s) 0 0.0 1 3.0 2 6.0 3 9.0 4 12.0 5 15.0 6 18.0 7 21.0 8 24.0 9 27.0

10 30.0 11 33.0 12 36.0 13 39.0 14 42.0 15 45.0 16 48.0 17 51.0 18 54.0 19 57.0 20 60.0 21 63.0 22 66.0 23 70.0 24 74.0 25 78.0 26 83.0 27 89.0 28 96.5 29 103.0 30 109.0 31 111.0 32 110.5

0

20

40

60

80

100

120

0 20 40 60 80 100 120

Dis

char

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³/s)

Duration (Hours)


Page 45 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 33 108.0 34 105.0 35 102.0 36 99.0 37 96.0 38 93.0 39 90.0 40 87.0 41 84.0 42 82.0 43 80.5 44 79.0 45 77.5 46 76.0 47 74.5 48 73.0 49 71.5 50 70.0 51 68.5 52 67.0 53 65.5 54 64.0 55 62.5 56 61.0 57 59.5 58 58.0 59 56.5 60 55.0 61 53.5 62 52.0 63 50.5 64 49.0 65 47.5 66 46.0 67 44.5


Page 46 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 68 43.0 69 41.5 70 40.0 71 38.5 72 37.0 73 35.5 74 34.0 75 32.5 76 31.0 77 29.5 78 28.0 79 26.5 80 25.0 81 23.5 82 22.0 83 21.0 84 20.0 85 19.0 86 18.0 87 17.0 88 16.0 89 15.0 90 14.0 91 13.0 92 12.0 93 11.0 94 10.0 95 9.0 96 8.0 97 7.0 98 6.0 99 5.0

100 4.0 101 3.0 102 2.0 103 1.5 104 1.0 105 0.5 106 0.0


Page 47 of 100


Time (Hour)

Adjusted Ordinates

(m³/s) 0 0 1 3 2 7 3 11 4 15 5 18 6 22 7 26 8 29 9 33

10 37 11 40 12 44 13 48 14 52 15 56 16 63 17 72 18 80 19 88 20 96 21 103 22 107 23 106 24 102 25 97 26 93 27 90 28 87 29 84 30 81 31 79 32 77

0

20

40

60

80

100

120

0 10 20 30 40 50 60 70 80 90

Dis

char

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³/s)

Duration (Hours)


Page 48 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 33 75 34 73 35 71 36 69 37 67 38 65 39 63 40 61 41 59 42 57 43 55 44 53 45 51 46 49 47 47 48 45 49 43 50 41 51 39 52 37 53 35 54 33 55 31 56 29 57 27 58 25 59 23 60 21 61 19 62 17 63 15 64 13 65 11 66 9 67 7


Page 49 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 68 6 69 5 70 4 71 4 72 3 73 3 74 2 75 2 76 1 77 1 78 0


Page 50 of 100


Time (Hour)

Adjusted Ordinates

(m³/s) 0 0 1 2 2 5 3 9 4 13 5 17 6 21 7 25 8 30 9 34

10 39 11 44 12 49 13 55 14 61 15 70 16 78 17 88 18 96 19 107 20 114 21 122 22 127 23 126 24 121 25 116 26 110 27 106 28 102 29 98 30 95 31 92 32 89

0

20

40

60

80

100

120

140

0 20 40 60 80 100

Dis

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³/s)

Duration (Hours)


Page 51 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 33 86 34 83 35 80 36 78 37 75 38 73 39 71 40 69 41 67 42 65 43 63 44 61 45 59 46 57 47 55 48 53 49 51 50 49 51 47 52 45 53 43 54 41 55 39 56 37 57 35 58 33 59 31 60 29 61 27 62 25 63 23 64 21 65 19 66 17 67 15


Page 52 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 68 13 69 11 70 9 71 7 72 5 73 3 74 2 75 2 76 1 77 1 78 0


Page 53 of 100


Time (Hour)

Adjusted Ordinates

(m³/s) 0 0 1 2 2 4 3 6 4 8 5 10 6 12 7 14 8 16 9 18

10 20 11 22 12 24 13 26 14 29 15 32 16 35 17 38 18 42 19 47 20 53 21 59 22 65 23 71 24 76 25 78 26 78 27 75 28 72 29 70 30 68 31 66 32 64

0

10

20

30

40

50

60

70

80

90

0 20 40 60 80 100

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Page 54 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 33 62 34 60 35 58 36 56 37 54 38 52 39 50 40 48 41 47 42 46 43 45 44 44 45 43 46 42 47 41 48 40 49 39 50 38 51 37 52 36 53 35 54 34 55 33 56 32 57 31 58 30 59 29 60 28 61 27 62 26 63 25 64 24 65 23 66 22 67 21


Page 55 of 100

Time (Hour)

Adjusted Ordinates

(m³/s) 68 20 69 19 70 18 71 17 72 16 73 15 74 14 75 13 76 12 77 11 78 10 79 9 80 8 81 7 82 6 83 5 84 4 85 3 86 2 87 1 88 1 89 0


Page 56 of 100


of 100

भारत सरकार Government of India

भारत मौसम व ान वभाग India Meteorological Department

मौसम व ान के महा नदेशक का कायालय Office of the Director General of Meteorology

लोधी रोड, नई द ल -110003 Lodhi Road, New Delhi-03 No:. HS- 20/03/2015-DSU Dated: 17/01/2017

To,

The Manager, Reservoir Operations, Damodar Valley Corporation, P.O Maithon Dam, Dist.-Dhanbad, Jharkhand-828207. Sub: Supply of design storm value for 9 Sub Catchments of DVC Dam including Tenughat Dam.. Ref.: Your letter no. MRO/PMF/881 dated 4/11/2016. Sir,

Kindly refer to your letter mentioned above. The design storm study in respect of 9 sub catchments of Damodar Valley Corporation Dam Project has been completed on the basis of available rainfall data in this office. The 1-day and 2-day Probable Maximum Precipitation (PMP) values for the each Sub-Catchment of the DVC project are given below:

Catchments D(R1) D(R2) D(R3+R4+R5) B(R1) B(R2+R3

+R4+R5) B(R2+R3) B(R4+R5) D(R3+R4) D(R5)

1 day PMP values (cm) 35.0 42.8 32.9 43.2 32.3 37.6 37.4 35.5 37.5

2 day PMP values (cm) 60.1 69.0 58.4 66.8 57.2 64.5 64.0 61.8 60.9

The above 1-day PMP values may be increased by 15% to convert them into any 24-hour values.

The time distribution of 24-hour & 48 -hour storm rainfall for the sub catchments Damodar R1, Damodar R2 and Barakar R1 is given at annexure-I and that for the rest of sub catchments is given in the Annexure-II.

Yours sincerely,

(P. K. Gupta) Meteorologist B

Hydromet Division for Director General of Meteorology

Annexure III

of 100

Annexure-I

Temporal Distribution for Sub Catchments Damodar R1,R2 and Barakar R1

Duration (Hours)

% distribution of Storm Rainfall

24-hrs 48- hrs

1 24 10

3 39 21

6 56 35

9 69 44

12 79 51

15 87 56

18 93 61

21 97 66

24 100 71

27 76

30 80

33 84

36 88

39 92

42 95

45 98

48 100

of 100

Annexure-II

Temporal Distribution for Sub Catchments Damodar (R3+R4+R5),

Damodar (R3+R4), Damodar(R5), Barakar (R2+R3), Barakar (R4+R5), and Barakar (R2+R3+R4+R5)

Duration (Hours)

% distribution of Storm Rainfall

24-hrs 48- hrs

1 22 12

3 36 20

6 53 31

9 66 40

12 76 46

15 83 52

18 89 58

21 95 63

24 100 68

27 72

30 76

33 80

36 84

39 88

42 93

45 96

48 100

of 100


Figure 7-3 The delineated catchments for rainfall-runoff model (NAM)

Table 7-1. The delineated catchments and catchment areas

Sr, No. Catchment Name Area, Sq. Km

1 Damodar R1 4495

2 Damodar R2 1005

3 Damodar R3 1428

4 Damodar R4 2041

5 Damodar R5 2314

6 Barakar RI 958

7 Barakar R2 1724

8 Barakar R3 1225

9 Barakar R4 1457

10 Barakar R5 1040

11 Khudia River Catchment 711

12 Lower Valley 1456

Page 61 of 100

of 100



Page 63 of 100

Annexure IV: Computations of Probable Maximum Flood Hydrographs from Sub-catchments of Maithon Dam

Probable Maximum Flood Hydrograph for Barakar R1 Considering Bell Sequence of 4,1,2,3

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

0.110.120.16 0.170.260.26 0.38 1.41 0.370.25 0.170.10 1.37 1.40 1.71 1.78 2.36 2.39 3.18 10.27 3.11 2.32 1.74 1.30 0.290.300.38 0.400.550.56 0.77 2.66 0.750.54 0.390.27 0.700.720.89 0.93 1.24 1.26 1.69 5.57 1.65 1.22 0.910.66

0 0.0 0.0 41.0 41

1 3.0 0.3 0.0 41.0 41

2 6.0 0.7 0.4 0.0 41.0 42

3 9.0 1.0 0.7 0.5 0.0 41.0 43

4 13.0 1.5 1.1 1.0 0.5 0.0 41.0 45

5 17.0 1.9 1.5 1.5 1.0 0.8 0.0 41.0 48

6 21.0 2.4 2.0 2.1 1.6 1.5 0.8 0.0 41.0 51

7 25.0 2.8 2.5 2.8 2.2 2.3 1.6 1.1 0.0 41.0 56

8 29.0 3.3 3.0 3.4 2.9 3.3 2.4 2.3 4.2 0.0 41.0 66

9 33.0 3.7 3.4 4.1 3.6 4.4 3.4 3.4 8.4 1.1 0.0 41.0 77

10 38.0 4.3 3.9 4.7 4.3 5.4 4.5 4.9 12.7 2.2 0.8 0.0 41.0 89

11 43.0 4.9 4.5 5.4 5.0 6.4 5.5 6.4 18.3 3.3 1.5 0.5 0.0 41.0 103

12 48.0 5.4 5.1 6.2 5.7 7.5 6.5 7.9 23.9 4.8 2.3 1.0 0.3 0.0 41.0 118

13 55.0 6.2 5.7 7.0 6.6 8.5 7.6 9.4 29.5 6.2 3.3 1.5 0.6 4.1 0.0 41.0 137

14 62.0 7.0 6.5 7.8 7.4 9.8 8.6 10.9 35.2 7.7 4.3 2.2 0.9 8.2 4.2 0.0 41.0 162

15 69.0 7.8 7.3 9.0 8.3 11.010.0 12.4 40.8 9.2 5.3 2.9 1.3 12.3 8.4 5.1 0.0 41.0 192

16 75.5 8.5 8.2 10.1 9.5 12.311.3 14.3 46.4 10.6 6.3 3.5 1.8 17.8 12.6 10.3 5.3 0.0 41.0 230

17 83.0 9.4 8.9 11.2 10.714.112.6 16.2 53.5 12.1 7.3 4.2 2.2 23.3 18.2 15.4 10.7 7.1 0.0 41.0 278

18 90.0 10.2 9.8 12.3 11.915.914.4 18.0 60.5 13.9 8.3 4.9 2.6 28.7 23.8 22.2 16.0 14.1 7.2 0.0 41.0 336

19 92.0 10.410.613.5 13.017.716.2 20.7 67.5 15.7 9.6 5.5 3.0 34.2 29.4 29.1 23.1 21.2 14.4 9.5 0.0 41.0 405

20 89.0 10.110.914.6 14.319.418.1 23.3 77.4 17.610.8 6.4 3.4 39.7 35.0 35.9 30.2 30.6 21.5 19.1 30.8 0.0 41.0 510

21 85.0 9.6 10.515.0 15.521.319.8 25.9 87.2 20.112.1 7.2 3.9 45.1 40.7 42.7 37.3 40.1 31.1 28.6 61.7 9.3 0.0 41.0 626

22 82.0 9.3 10.014.5 15.923.121.7 28.4 97.1 22.713.9 8.1 4.4 52.0 46.3 49.6 44.4 49.5 40.7 41.3 92.5 18.7 7.0 0.0 41.0 752

23 79.0 8.9 9.7 13.8 15.423.623.6 31.2106.225.215.6 9.2 5.0 58.8 53.3 56.4 51.5 58.9 50.2 54.0 133.6 28.0 13.9 5.2 0.0 41.0 892

24 76.0 8.6 9.3 13.3 14.722.924.1 33.8116.827.617.4 10.4 5.7 65.6 60.3 64.9 58.6 68.4 59.8 66.7 174.7 40.4 20.9 10.5 3.9 0.0 41.0 1040

25 73.0 8.3 9.0 12.9 14.221.823.3 34.6126.630.419.0 11.6 6.4 75.2 67.3 73.5 67.5 77.8 69.4 79.4 215.8 52.8 30.2 15.7 7.8 0.9 0.0 41.0 1192

26 70.0 7.9 8.6 12.4 13.621.122.3 33.4129.432.920.9 12.7 7.1 84.8 77.1 82.0 76.4 89.6 78.9 92.1 256.9 65.3 39.5 22.7 11.7 1.7 0.9 0.0 41.0 1343

27 67.0 7.6 8.3 11.9 13.120.321.5 31.9125.233.722.7 13.9 7.8 94.4 86.9 94.0 85.3 101.4 90.9 104.8298.0 77.7 48.8 29.6 16.9 2.6 1.8 1.1 0.0 41.0 1493

28 64.0 7.2 7.9 11.4 12.619.520.7 30.8119.632.623.2 15.1 8.6 103.3 96.7 105.9 97.7 113.2102.8120.7339.1 90.1 58.1 36.6 22.1 3.8 2.7 2.3 1.2 0.0 41.0 1646

29 61.0 6.9 7.6 10.9 12.118.819.9 29.7115.331.122.4 15.4 9.3 113.5105.8117.9110.2129.7114.8136.6390.5102.6 67.4 43.6 27.3 4.9 3.9 3.4 2.4 1.7 0.0 41.0 1816

30 59.0 6.7 7.2 10.4 11.618.019.1 28.6111.130.021.4 14.9 9.5 123.1116.3129.0122.6146.2131.5152.5441.8118.1 76.7 50.5 32.5 6.1 5.1 5.0 3.6 3.3 1.7 0.0 41.0 1995

31 57.0 6.5 7.0 9.9 11.117.218.3 27.4106.928.920.7 14.3 9.2 125.8126.2141.8134.2162.7148.3174.7493.2133.7 88.3 57.5 37.7 7.3 6.3 6.5 5.2 5.0 3.4 2.3 0.0 41.0 2178

32 55.0 6.2 6.7 9.6 10.516.417.5 26.3102.727.819.9 13.8 8.8 121.7129.0153.8147.5178.0165.0196.9565.1149.2 99.9 66.2 42.9 8.4 7.5 8.0 6.8 7.2 5.1 4.6 8.0 0.0 41.0 2378

33 53.0 6.0 6.5 9.3 10.215.716.8 25.2 98.5 26.719.1 13.2 8.5 116.2124.8157.2159.9195.7180.6219.2637.0170.9111.5 75.0 49.4 9.6 8.7 9.5 8.4 9.4 7.3 6.9 16.0 2.3 0.0 41.0 2572

34 51.0 5.8 6.3 9.0 9.8 15.216.0 24.1 94.2 25.618.4 12.7 8.2 112.1119.1152.1163.5212.2198.5239.8709.0192.7127.8 83.7 55.9 11.0 9.9 11.0 10.011.6 9.6 10.0 23.9 4.5 1.6 0.0 41.0 2756

35 49.0 5.5 6.0 8.6 9.5 14.615.5 22.9 90.0 24.517.6 12.2 7.8 108.0114.9145.3158.2216.9215.2263.6775.8214.5144.0 95.9 62.4 12.511.412.6 11.613.811.8 13.1 34.6 6.8 3.3 1.2 0.0 41.0 2923

36 47.0 5.3 5.8 8.3 9.2 14.114.9 22.2 85.8 23.416.9 11.7 7.5 103.9110.7140.1151.1209.8220.0285.9852.8234.7160.3108.1 71.5 13.912.914.5 13.216.014.1 16.2 45.2 9.8 4.9 2.3 0.8 0.0 41.0 3079


Page 64 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

37 45.0 5.1 5.6 8.0 8.8 13.614.4 21.4 83.0 22.316.1 11.2 7.2 99.8 106.5135.0145.7200.4212.8292.2924.7258.0175.4120.3 80.6 16.014.416.4 15.218.316.3 19.3 55.8 12.8 7.1 3.5 1.6 2.1 0.0 41.0 3208

38 43.0 4.9 5.3 7.7 8.5 13.113.9 20.7 80.2 21.615.4 10.7 6.9 95.7 102.3129.9140.4193.3203.3282.7945.3279.7192.8131.6 89.7 18.016.518.3 17.221.018.6 22.4 66.5 15.8 9.3 5.1 2.5 4.2 2.2 0.0 41.0 3274

39 41.0 4.6 5.1 7.3 8.1 12.613.4 19.9 77.4 20.914.9 10.2 6.6 91.6 98.1 124.7135.1186.2196.1270.0914.5285.9209.1144.7 98.1 20.018.620.9 19.223.821.4 25.4 77.1 18.811.4 6.6 3.5 6.3 4.3 2.7 0.0 41.0 3276

40 39.0 4.4 4.8 7.0 7.8 12.112.8 19.2 74.6 20.114.4 9.9 6.3 87.5 93.9 119.6129.7179.2188.9260.5873.4276.6213.7156.9107.821.920.623.6 21.926.624.2 29.3 87.7 21.813.6 8.2 4.6 9.1 6.5 5.3 2.8 0.0 41.0 3250

41 37.0 4.2 4.6 6.7 7.4 11.612.3 18.4 71.7 19.413.9 9.6 6.1 83.4 89.7 114.5124.4172.1181.7250.9842.5264.2206.8160.4116.924.122.626.3 24.730.427.0 33.2101.024.815.8 9.8 5.7 11.9 9.4 8.0 5.6 3.7 0.0 41.0 3218

42 35.0 4.0 4.4 6.3 7.1 11.011.8 17.7 68.9 18.713.4 9.2 5.9 80.7 85.5 109.4119.1165.0174.6241.4811.7254.9197.5155.1119.526.124.828.8 27.534.330.9 37.0114.328.618.0 11.3 6.8 14.712.311.6 8.3 7.5 3.8 0.0 41.0 3180

43 33.0 3.7 4.1 6.0 6.7 10.511.3 16.9 66.1 17.912.9 8.9 5.7 78.0 82.7 104.2113.7157.9167.4231.9780.9245.5190.5148.2115.626.726.931.6 30.138.234.9 42.4127.632.420.7 12.9 7.9 17.515.115.1 12.0 11.2 7.6 5.1 0.0 41.0 3144

44 31.0 3.5 3.9 5.7 6.4 10.010.7 16.2 63.3 17.212.3 8.6 5.5 75.2 79.9 100.8108.4150.9160.2222.3750.1236.2183.5142.9110.425.827.534.3 33.141.838.8 47.8146.236.123.4 14.8 9.0 20.418.018.7 15.7 16.2 11.4 10.1 16.7 0.0 41.0 3131

45 29.0 3.3 3.7 5.4 6.0 9.5 10.2 15.4 60.5 16.511.8 8.2 5.3 72.5 77.1 97.4 104.9143.8153.1212.8719.2226.9176.6137.7106.524.726.635.0 35.945.942.5 53.2164.841.426.1 16.810.3 23.220.922.2 19.4 21.1 16.4 15.2 33.4 5.0 0.0 41.0 3125

46 27.0 3.1 3.4 5.0 5.7 9.0 9.7 14.7 57.7 15.711.3 7.9 5.1 69.7 74.3 94.0 101.3139.1145.9203.3688.4217.6169.6132.5102.623.825.433.9 36.749.846.7 58.2183.446.729.9 18.711.7 26.723.825.8 23.1 26.1 21.4 22.0 50.1 9.9 3.7 0.0 41.0 3125

47 25.0 2.8 3.2 4.7 5.4 8.5 9.2 13.9 54.9 15.010.8 7.5 4.9 67.0 71.5 90.6 97.7 134.4141.1193.8657.6208.2162.6127.2 98.7 22.924.532.4 35.550.950.6 64.0200.751.933.7 21.413.1 30.227.429.3 26.8 31.1 26.5 28.7 72.4 14.9 7.3 2.7 0.0 41.0 3131

48 23.0 2.6 3.0 4.4 5.0 8.0 8.6 13.2 52.1 14.310.3 7.2 4.6 64.3 68.7 87.2 94.2 129.7136.3187.4626.8198.9155.7122.0 94.9 22.123.631.2 33.949.251.7 69.4220.656.837.5 24.215.0 33.731.033.8 30.5 36.0 31.5 35.5 94.7 21.5 11.0 5.4 2.0 41.0 3142

49 21.0 2.4 2.7 4.1 4.7 7.5 8.1 12.4 49.2 13.5 9.8 6.9 4.4 61.5 65.9 83.7 90.6 124.9131.5181.1606.2189.6148.7116.8 91.0 21.222.730.1 32.747.050.0 70.9239.262.541.1 26.916.9 38.634.638.2 35.2 41.0 36.6 42.3 116.9 28.1 15.9 8.2 4.0 41.0 3159

50 19.0 2.2 2.5 3.7 4.3 6.9 7.6 11.7 46.4 12.8 9.3 6.5 4.2 58.8 63.1 80.3 87.1 120.2126.7174.7585.7183.4141.7111.6 87.1 20.321.828.9 31.545.447.8 68.6244.567.845.2 29.418.8 43.539.642.6 39.8 47.2 41.6 49.0 139.2 34.7 20.8 11.8 6.0 41.0 3165

51 17.0 1.9 2.2 3.4 4.0 6.4 7.1 10.9 43.6 12.1 8.8 6.2 4.0 56.1 60.3 76.9 83.5 115.5122.0168.3565.1177.2137.1106.3 83.2 19.420.927.8 30.343.746.1 65.5236.669.349.0 32.420.5 48.444.748.9 44.4 53.4 47.9 55.8 161.5 41.3 25.7 15.4 8.6 41.0 3160

52 16.0 1.8 2.0 3.1 3.6 5.9 6.5 10.2 40.8 11.3 8.3 5.9 3.8 53.3 57.5 73.5 80.0 110.8117.2162.0544.6170.9132.4102.8 79.3 18.620.026.7 29.142.044.4 63.2225.967.050.1 35.122.6 53.049.755.1 50.9 59.6 54.2 64.2 183.7 47.9 30.6 19.011.3 41.0 3152

53 15.0 1.7 1.9 2.8 3.3 5.4 6.0 9.4 38.0 10.6 7.8 5.5 3.6 50.6 54.7 70.1 76.4 106.1112.4155.6524.0164.7127.8 99.4 76.7 17.719.225.5 27.940.442.7 60.9218.064.048.4 35.924.5 58.254.461.3 57.4 68.3 60.5 72.7 211.6 54.5 35.5 22.714.0 41.0 3151

54 14.0 1.6 1.8 2.6 2.9 4.9 5.5 8.6 35.2 9.9 7.3 5.2 3.4 47.9 51.9 66.6 72.9 101.4107.6149.3503.5158.5123.1 95.9 74.1 17.118.324.4 26.738.741.0 58.6210.061.746.3 34.725.0 63.259.867.1 63.9 77.0 69.4 81.1 239.4 62.8 40.4 26.316.6 41.0 3152

55 13.0 1.5 1.7 2.4 2.8 4.4 5.0 7.9 32.4 9.2 6.8 4.9 3.2 45.1 49.1 63.2 69.3 96.7 102.8142.9482.9152.3118.5 92.4 71.5 16.517.723.2 25.537.139.4 56.3202.059.544.6 33.124.2 64.664.873.7 69.9 85.7 78.2 92.9 267.3 71.1 46.5 29.919.3 41.0 3152

56 12.0 1.4 1.5 2.3 2.6 4.1 4.5 7.1 29.5 8.4 6.3 4.5 3.0 42.4 46.3 59.8 65.8 91.9 98.1 136.6462.4146.1113.8 88.9 68.9 16.017.122.5 24.335.437.7 54.0194.057.243.0 32.023.1 62.566.379.9 76.8 93.8 87.0 104.8306.2 79.3 52.6 34.521.9 41.0 3159

57 11.0 1.2 1.4 2.1 2.4 3.9 4.2 6.4 26.7 7.7 5.8 4.2 2.8 39.7 43.5 56.4 62.2 87.2 93.3 130.2441.8139.9109.2 85.4 66.3 15.416.521.7 23.533.736.0 51.7186.155.041.4 30.822.3 59.664.181.7 83.3103.1 95.2 116.6345.2 90.9 58.7 39.025.3 41.0 3161

58 10.0 1.1 1.3 2.0 2.2 3.6 3.9 6.0 23.9 7.0 5.3 3.9 2.6 36.9 40.7 53.0 58.6 82.5 88.5 123.9421.3133.7104.5 81.9 63.7 14.815.920.9 22.732.634.3 49.3178.152.739.7 29.621.5 57.561.279.0 85.1111.8104.7127.6384.2102.5 67.3 43.528.6 41.0 3158

59 9.0 1.0 1.2 1.8 2.1 3.3 3.7 5.6 22.5 6.2 4.8 3.5 2.4 34.2 37.8 49.6 55.1 77.8 83.7 117.5400.7127.4 99.9 78.4 61.1 14.215.320.2 21.931.533.2 47.0170.150.438.1 28.520.7 55.459.175.5 82.4114.3113.5140.3420.4114.0 75.9 49.931.9 41.0 3146

60 8.0 0.9 1.1 1.6 1.9 3.1 3.4 5.3 21.1 5.9 4.3 3.2 2.2 31.5 35.0 46.1 51.5 73.1 78.9 111.2380.2121.2 95.3 75.0 58.5 13.614.719.4 21.130.432.1 45.5162.148.236.5 27.319.9 53.356.972.8 78.7110.6116.0152.1462.1124.8 84.4 56.236.5 41.0 3127

61 7.0 0.8 0.9 1.5 1.7 2.8 3.1 4.9 19.7 5.5 4.0 2.9 2.0 28.7 32.2 42.7 48.0 68.4 74.1 104.8359.6115.0 90.6 71.5 55.9 13.114.118.7 20.429.330.9 43.9156.845.934.8 26.119.0 51.254.870.2 75.9105.6112.2155.5501.1137.2 92.4 62.641.2 41.0 3095

62 6.0 0.7 0.8 1.3 1.6 2.6 2.9 4.5 18.3 5.1 3.8 2.7 1.8 26.0 29.4 39.3 44.4 63.6 69.4 98.5 339.1108.8 86.0 68.0 53.3 12.513.517.9 19.628.229.8 42.4151.544.433.2 25.018.2 49.152.667.5 73.1101.9107.2150.4512.2148.7101.668.545.8 41.0 3027

63 5.0 0.6 0.7 1.1 1.4 2.3 2.6 4.1 16.9 4.8 3.5 2.5 1.7 23.3 26.6 35.9 40.9 58.9 64.6 92.1 318.5102.6 81.3 64.5 50.7 11.912.917.1 18.827.128.7 40.9146.242.932.1 23.817.4 47.050.464.8 70.3 98.2 103.4143.6495.5152.0110.175.350.2 41.0 2924

64 4.0 0.5 0.6 1.0 1.2 2.1 2.4 3.8 15.5 4.4 3.3 2.4 1.6 21.9 23.8 32.5 37.3 54.2 59.8 85.8 298.0 96.4 76.7 61.0 48.1 11.312.316.4 18.026.027.6 39.3140.941.431.0 23.016.6 44.948.362.2 67.6 94.4 99.6 138.6473.3147.1112.681.655.2 41.0 2804

65 3.0 0.3 0.5 0.8 1.0 1.8 2.1 3.4 14.1 4.0 3.0 2.2 1.4 20.5 22.4 29.1 33.8 49.5 55.0 79.4 277.4 90.1 72.0 57.5 45.5 10.711.715.6 17.224.926.4 37.8135.639.929.9 22.216.1 42.846.159.5 64.8 90.7 95.8 133.5456.6140.5108.983.459.8 41.0 2678

66 2.0 0.2 0.4 0.7 0.9 1.5 1.8 3.0 12.7 3.7 2.8 2.0 1.3 19.2 21.0 27.3 30.2 44.8 50.2 73.1 256.9 83.9 67.4 54.0 42.9 10.211.114.9 16.423.825.3 36.2130.238.428.8 21.415.5 41.443.956.8 62.0 87.0 92.1 128.4439.9135.5104.080.761.1 41.0 2548

67 1.0 0.1 0.2 0.5 0.7 1.3 1.6 2.6 11.3 3.3 2.5 1.8 1.2 17.8 19.6 25.6 28.4 40.1 45.4 66.7 236.3 77.7 62.7 50.5 40.3 9.6 10.514.1 15.622.724.2 34.7124.936.927.8 20.715.0 40.042.554.2 59.2 83.2 88.3 123.4423.2130.6100.477.159.1 41.0 2417

68 0.0 0.0 0.1 0.3 0.5 1.0 1.3 2.3 9.9 2.9 2.3 1.7 1.1 16.4 18.2 23.9 26.7 37.7 40.7 60.4 215.8 71.5 58.1 47.1 37.7 9.0 9.9 13.3 14.821.623.1 33.2119.635.426.7 19.914.4 38.641.152.4 56.5 79.5 84.5 118.3406.5125.6 96.7 74.456.5 41.0 2289

69 0.0 0.0 0.0 0.2 0.4 0.8 1.1 1.9 8.4 2.6 2.0 1.5 1.0 15.0 16.8 22.2 24.9 35.4 38.3 54.0 195.2 65.3 53.4 43.6 35.1 8.4 9.3 12.6 14.020.521.9 31.6114.333.925.6 19.113.9 37.239.650.6 54.6 75.8 80.7 113.2389.7120.6 93.0 71.654.5 41.0 2166

70 0.0 0.0 0.0 0.0 0.2 0.5 0.8 1.5 7.0 2.2 1.8 1.3 0.9 13.7 15.4 20.5 23.1 33.0 35.9 50.8 174.7 59.1 48.8 40.1 32.5 7.8 8.7 11.8 13.219.420.8 30.1109.032.424.5 18.313.3 35.838.248.9 52.8 73.3 76.9 108.2373.0115.7 89.3 68.952.5 41.0 2047

71 0.0 0.0 0.0 0.0 0.0 0.3 0.5 1.1 5.6 1.8 1.5 1.2 0.8 12.3 14.0 18.8 21.3 30.6 33.5 47.6 164.4 52.8 44.1 36.6 29.9 7.3 8.1 11.0 12.418.319.7 28.5103.730.923.4 17.512.8 34.436.747.1 50.9 70.8 74.4 103.1356.3110.7 85.7 66.250.5 41.0 1940

72 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.8 4.2 1.5 1.3 1.0 0.7 10.9 12.6 17.1 19.6 28.3 31.1 44.5 154.1 49.7 39.5 33.1 27.3 6.7 7.5 10.3 11.617.218.6 27.0 98.3 29.422.3 16.812.2 33.035.345.3 49.1 68.3 71.9 99.7 339.6105.8 82.0 63.548.5 41.0 1838

73 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.8 1.1 1.0 0.8 0.6 9.6 11.2 15.4 17.8 25.9 28.7 41.3 143.9 46.6 37.2 29.6 24.7 6.1 6.9 9.5 10.816.017.4 25.4 93.0 27.921.2 16.011.7 31.633.943.5 47.2 65.9 69.4 96.3 328.5100.8 78.3 60.846.5 41.0 1744

74 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4 0.7 0.8 0.7 0.5 8.2 9.8 13.7 16.0 23.6 26.3 38.1 133.6 43.5 34.9 27.9 22.1 5.5 6.3 8.8 10.014.916.3 23.9 87.7 26.420.1 15.211.2 30.232.441.7 45.4 63.4 66.8 92.9 317.4 97.5 74.7 58.044.5 41.0 1654

75 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.5 0.5 0.4 6.8 8.4 12.0 14.2 21.2 23.9 34.9 123.3 40.4 32.5 26.1 20.8 4.9 5.7 8.0 9.2 13.815.2 22.4 82.4 24.819.0 14.410.6 28.831.040.0 43.5 60.9 64.3 89.6 306.2 94.2 72.2 55.342.5 41.0 1566

76 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.3 0.3 5.5 7.0 10.3 12.4 18.9 21.5 31.8 113.0 37.3 30.2 24.4 19.5 4.6 5.1 7.2 8.4 12.714.1 20.8 77.1 23.318.0 13.710.1 27.429.538.2 41.6 58.4 61.8 86.2 295.1 90.9 69.8 53.540.5 41.0 1481

77 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.2 4.1 5.6 8.5 10.7 16.5 19.1 28.6 102.8 34.2 27.9 22.7 18.2 4.4 4.8 6.5 7.6 11.612.9 19.3 71.8 21.816.9 12.9 9.5 26.028.136.4 39.8 55.9 59.3 82.8 284.0 87.6 67.3 51.739.2 41.0 1398

78 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 2.7 4.2 6.8 8.9 14.1 16.7 25.4 92.5 31.1 25.6 20.9 16.9 4.1 4.5 6.1 6.8 10.511.8 17.7 66.5 20.315.8 12.1 9.0 24.626.734.6 37.9 53.4 56.8 79.4 272.8 84.3 64.9 49.937.9 41.0 1315

79 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4 2.8 5.1 7.1 11.8 14.4 22.2 82.2 28.0 23.2 19.2 15.6 3.8 4.2 5.7 6.4 9.4 10.7 16.2 61.1 18.814.7 11.3 8.4 23.225.232.9 36.1 50.9 54.2 76.0 261.7 81.0 62.4 48.136.5 41.0 1233

80 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4 3.4 5.3 9.4 12.0 19.1 71.9 24.9 20.9 17.4 14.3 3.5 3.9 5.3 6.0 8.9 9.6 14.7 55.8 17.313.6 10.5 7.9 21.823.831.1 34.2 48.5 51.7 72.7 250.6 77.7 60.0 46.335.2 41.0 1151


Page 65 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

81 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7 3.6 7.1 9.6 15.9 61.7 21.8 18.6 15.7 13.0 3.2 3.6 5.0 5.6 8.3 9.0 13.1 50.5 15.812.5 9.8 7.3 20.422.329.3 32.4 46.0 49.2 69.3 239.4 74.4 57.5 44.433.9 41.0 1071

82 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.8 4.7 7.2 12.7 51.4 18.7 16.3 13.9 11.7 2.9 3.3 4.6 5.2 7.7 8.4 12.3 45.2 14.311.4 9.0 6.8 19.020.927.5 30.5 43.5 46.7 65.9 228.3 71.1 55.1 42.632.6 41.0 994

83 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.4 4.8 9.5 41.1 15.5 13.9 12.2 10.4 2.6 3.0 4.2 4.8 7.2 7.9 11.6 42.5 12.810.3 8.2 6.3 17.519.525.8 28.7 41.0 44.1 62.5 217.1 67.8 52.6 40.831.2 41.0 921

84 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.4 6.4 30.8 12.4 11.6 10.5 9.1 2.3 2.7 3.8 4.4 6.6 7.3 10.8 39.9 12.0 9.3 7.4 5.7 16.118.024.0 26.8 38.5 41.6 59.1 206.0 64.5 50.2 39.029.9 41.0 850

85 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.2 20.6 9.3 9.3 8.7 7.8 2.0 2.4 3.4 4.0 6.1 6.8 10.0 37.2 11.3 8.7 6.6 5.2 14.716.622.2 25.0 36.0 39.1 55.8 194.9 61.1 47.7 37.228.6 41.0 782

86 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.3 6.2 7.0 7.0 6.5 1.7 2.1 3.1 3.6 5.5 6.2 9.3 34.6 10.5 8.2 6.2 4.6 13.315.120.4 23.1 33.5 36.6 52.4 183.7 57.8 45.3 35.427.2 41.0 717

87 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.1 4.7 5.2 5.2 1.5 1.8 2.7 3.2 5.0 5.6 8.5 31.9 9.8 7.6 5.9 4.4 11.913.718.7 21.3 31.1 34.1 49.0 172.6 54.5 42.8 33.625.9 41.0 656

88 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.3 3.5 3.9 1.2 1.5 2.3 2.8 4.4 5.1 7.7 29.2 9.0 7.1 5.5 4.1 11.212.316.9 19.4 28.6 31.5 45.6 161.5 51.2 40.4 31.724.6 41.0 605

89 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7 2.6 0.9 1.2 1.9 2.4 3.9 4.5 6.9 26.6 8.3 6.5 5.1 3.8 10.511.515.1 17.6 26.1 29.0 42.3 150.3 47.9 37.9 29.923.3 41.0 559

90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 0.6 0.9 1.5 2.0 3.3 3.9 6.2 23.9 7.5 6.0 4.7 3.5 9.8 10.814.2 15.7 23.6 26.5 38.9 139.2 44.6 35.5 28.121.9 41.0 515

91 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.6 1.1 1.6 2.8 3.4 5.4 21.3 6.8 5.4 4.3 3.3 9.1 10.113.3 14.8 21.1 24.0 35.5 128.1 41.3 33.0 26.320.6 41.0 474

92 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.8 1.2 2.2 2.8 4.6 18.6 6.0 4.9 3.9 3.0 8.4 9.4 12.4 13.9 19.9 21.4 32.1 116.9 38.0 30.6 24.519.3 41.0 436

93 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 1.7 2.3 3.9 16.0 5.3 4.4 3.5 2.7 7.7 8.6 11.6 13.0 18.6 20.2 28.7 105.8 34.7 28.2 22.717.9 41.0 399

94 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.1 1.7 3.1 13.3 4.5 3.8 3.1 2.5 7.0 7.9 10.7 12.0 17.4 18.9 27.0 94.7 31.4 25.7 20.916.6 41.0 365

95 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.1 2.3 10.6 3.8 3.3 2.7 2.2 6.3 7.2 9.8 11.1 16.2 17.7 25.4 89.1 28.1 23.3 19.015.3 41.0 336

96 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.5 8.0 3.0 2.7 2.3 1.9 5.6 6.5 8.9 10.2 14.9 16.4 23.7 83.5 26.4 20.8 17.214.0 41.0 309

97 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 5.3 2.3 2.2 2.0 1.6 4.9 5.8 8.0 9.3 13.7 15.1 22.0 78.0 24.8 19.6 15.412.6 41.0 284

98 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.7 1.5 1.6 1.6 1.4 4.2 5.0 7.1 8.3 12.4 13.9 20.3 72.4 23.1 18.4 14.511.3 41.0 261

99 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.1 1.2 1.1 3.5 4.3 6.2 7.4 11.2 12.6 18.6 66.8 21.5 17.1 13.610.6 41.0 239

100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.8 0.8 2.8 3.6 5.3 6.5 9.9 11.4 16.9 61.3 19.8 15.9 12.710.0 41.0 219

101 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.5 2.1 2.9 4.4 5.6 8.7 10.1 15.2 55.7 18.2 14.7 11.8 9.3 41.0 201

102 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.4 2.2 3.6 4.6 7.5 8.8 13.5 50.1 16.5 13.5 10.9 8.6 41.0 182

103 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.4 2.7 3.7 6.2 7.6 11.8 44.5 14.9 12.2 10.0 8.0 41.0 165

104 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.8 2.8 5.0 6.3 10.1 39.0 13.2 11.0 9.1 7.3 41.0 147

105 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 1.9 3.7 5.0 8.5 33.4 11.6 9.8 8.2 6.6 41.0 131

106 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 2.5 3.8 6.8 27.8 9.9 8.6 7.3 6.0 41.0 114

107 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 2.5 5.1 22.3 8.3 7.3 6.4 5.3 41.0 99

108 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 3.4 16.7 6.6 6.1 5.4 4.7 41.0 85

109 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7 11.1 5.0 4.9 4.5 4.0 41.0 72

110 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.6 3.3 3.7 3.6 3.3 41.0 60

111 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7 2.5 2.7 2.7 41.0 50

112 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 1.8 2.0 41.0 46

113 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 1.3 41.0 43

114 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 41.0 42

115 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 41.0 41


Page 66 of 100


Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

0.18 0.200.260.27 0.380.380.50 1.77 0.490.37 0.270.18 1.16 1.21 1.50 1.56 2.01 2.04 2.56 8.16 2.53 1.99 1.53 1.13 0.30 0.320.410.42 0.570.58 0.74 2.51 0.730.56 0.410.290.80 0.84 1.04 1.09 1.41 1.43 1.80 5.81 1.78 1.39 1.07 0.78

0 0.0 0.0 79.6 80

1 3.0 0.6 0.0 79.6 80

2 6.0 1.1 0.6 0.0 79.6 81

3 9.0 1.7 1.2 0.8 0.0 79.6 83

4 12.0 2.2 1.8 1.6 0.8 0.0 79.6 86

5 15.0 2.8 2.4 2.4 1.7 1.1 0.0 79.6 90

6 18.0 3.3 3.0 3.1 2.5 2.3 1.2 0.0 79.6 95

7 21.0 3.9 3.6 3.9 3.3 3.4 2.3 1.5 0.0 79.6 101

8 24.0 4.4 4.1 4.7 4.1 4.5 3.5 3.0 5.3 0.0 79.6 113

9 27.0 5.0 4.7 5.5 4.9 5.7 4.6 4.5 10.6 1.5 0.0 79.6 127

10 30.0 5.5 5.3 6.3 5.8 6.8 5.8 6.0 15.9 3.0 1.1 0.0 79.6 141

11 33.0 6.1 5.9 7.1 6.6 7.9 6.9 7.5 21.2 4.5 2.2 0.8 0.0 79.6 156

12 36.0 6.6 6.5 7.9 7.4 9.1 8.1 9.0 26.5 5.9 3.3 1.6 0.5 0.0 79.6 172

13 39.0 7.2 7.1 8.6 8.2 10.2 9.2 10.5 31.8 7.4 4.5 2.4 1.1 3.5 0.0 79.6 191

14 42.0 7.7 7.7 9.4 9.1 11.310.412.0 37.1 8.9 5.6 3.2 1.6 6.9 3.6 0.0 79.6 214

15 45.0 8.3 8.3 10.2 9.9 12.511.513.5 42.4 10.4 6.7 4.0 2.1 10.4 7.3 4.5 0.0 79.6 242

16 48.0 8.8 8.9 11.010.7 13.612.715.0 47.7 11.9 7.8 4.8 2.7 13.9 10.9 9.0 4.7 0.0 79.6 274

17 51.0 9.4 9.5 11.811.5 14.713.816.5 53.0 13.3 8.9 5.6 3.2 17.4 14.6 13.5 9.3 6.0 0.0 79.6 312

18 54.0 9.9 10.112.612.4 15.915.018.0 58.3 14.810.0 6.4 3.7 20.8 18.2 18.0 14.0 12.1 6.1 0.0 79.6 356

19 57.0 10.5 10.613.313.2 17.016.119.5 63.6 16.311.1 7.2 4.3 24.3 21.9 22.5 18.7 18.1 12.3 7.7 0.0 79.6 408

20 60.0 11.0 11.214.114.0 18.117.321.0 68.9 17.812.3 8.0 4.8 27.8 25.5 27.0 23.4 24.2 18.4 15.4 24.5 0.0 79.6 484

21 63.0 11.6 11.814.914.8 19.318.422.5 74.2 19.313.4 8.8 5.3 31.3 29.2 31.5 28.0 30.2 24.5 23.0 49.0 7.6 0.0 79.6 568

22 66.0 12.2 12.415.715.6 20.419.624.0 79.5 20.814.5 9.7 5.9 34.7 32.8 36.0 32.7 36.3 30.7 30.7 73.4 15.2 6.0 0.0 79.6 658

23 70.0 12.9 13.016.516.5 21.520.825.5 84.8 22.215.6 10.5 6.4 38.2 36.4 40.5 37.4 42.3 36.8 38.4 97.9 22.8 11.9 4.6 0.0 79.6 753

24 74.0 13.6 13.817.317.3 22.721.927.0 90.1 23.716.7 11.3 6.9 41.7 40.1 45.0 42.1 48.4 42.9 46.0 122.4 30.4 17.9 9.2 3.4 0.0 79.6 851

25 78.0 14.4 14.618.318.1 23.823.128.5 95.4 25.217.8 12.1 7.5 45.1 43.7 49.5 46.7 54.4 49.0 53.7 146.9 37.9 23.8 13.8 6.8 0.9 0.0 79.6 950

26 83.0 15.3 15.419.419.2 24.924.230.0 100.726.718.9 12.9 8.0 48.6 47.4 54.0 51.4 60.4 55.2 61.4 171.3 45.5 29.8 18.4 10.2 1.8 1.0 0.0 79.6 1051

27 89.0 16.4 16.420.420.3 26.425.431.5 106.028.220.1 13.7 8.5 52.1 51.0 58.5 56.1 66.5 61.3 69.1 195.8 53.1 35.8 22.9 13.6 2.7 1.9 1.2 0.0 79.6 1154

28 96.5 17.8 17.521.721.4 28.026.933.0 111.229.621.2 14.5 9.1 55.6 54.7 63.0 60.7 72.5 67.4 76.7 220.3 60.7 41.7 27.5 16.9 3.6 2.8 2.4 1.3 0.0 79.6 1259

29 103.0 19.0 19.023.322.8 29.528.435.0 116.531.122.3 15.3 9.6 59.0 58.3 67.5 65.4 78.6 73.6 84.4 244.8 68.3 47.7 32.1 20.3 4.5 3.8 3.7 2.5 1.7 0.0 79.6 1367

30 109.0 20.1 20.325.224.4 31.430.037.0 123.632.623.4 16.110.1 62.5 61.9 72.0 70.1 84.6 79.7 92.1 269.2 75.9 53.6 36.7 23.7 5.4 4.7 4.9 3.8 3.4 1.7 0.0 79.6 1480

31 111.0 20.4 21.526.926.5 33.631.939.0 130.734.624.5 16.910.7 66.0 65.6 76.5 74.8 90.7 85.8 99.8 293.7 83.5 59.6 41.3 27.1 6.2 5.7 6.1 5.1 5.1 3.5 2.2 0.0 79.6 1595

32 110.5 20.3 21.928.528.3 36.534.241.5 137.736.626.0 17.711.2 69.4 69.2 81.0 79.4 96.7 91.9 107.4318.2 91.0 65.5 45.9 30.5 7.1 6.6 7.3 6.4 6.8 5.2 4.4 7.5 0.0 79.6 1718

33 108.0 19.9 21.829.029.9 38.937.144.5 146.638.527.5 18.811.7 72.9 72.9 85.5 84.1 102.8 98.1 115.1342.7 98.6 71.5 50.5 33.9 8.0 7.6 8.5 7.6 8.5 6.9 6.7 15.1 2.2 0.0 79.6 1843

34 105.0 19.3 21.328.930.5 41.239.648.3 157.241.029.0 19.812.4 76.4 76.5 90.0 88.8 108.8104.2122.8367.1106.2 77.5 55.0 37.3 8.9 8.5 9.7 8.9 10.2 8.7 8.9 22.6 4.4 1.7 0.0 79.6 1971

35 102.0 18.8 20.728.330.3 41.941.951.5 170.444.030.8 20.913.1 81.0 80.2 94.5 93.4 114.8110.3130.4391.6113.8 83.4 59.6 40.6 9.8 9.5 10.910.2 11.910.4 11.1 30.1 6.6 3.4 1.2 0.0 79.6 2101

36 99.0 18.2 20.127.529.6 41.742.754.5 181.947.733.0 22.213.9 85.6 85.0 99.0 98.1 120.9116.5138.1416.1121.4 89.4 64.2 44.0 10.7 10.412.211.4 13.612.1 13.3 37.6 8.8 5.0 2.5 0.9 0.0 79.6 2229

37 96.0 17.7 19.526.728.8 40.842.555.6 192.550.935.8 23.914.7 90.3 89.9 105.0102.8126.9122.6145.8440.6129.0 95.3 68.8 47.4 11.6 11.313.412.7 15.313.8 15.5 45.1 11.0 6.7 3.7 1.7 2.4 0.0 79.6 2358

38 93.0 17.1 18.925.928.0 39.741.555.3 196.053.838.2 25.915.8 96.1 94.7 111.0109.0133.0128.7153.5465.0136.6101.3 73.4 50.8 12.5 12.314.614.0 17.015.6 17.7 52.7 13.1 8.4 5.0 2.6 4.8 2.5 0.0 79.6 2481

39 90.0 16.6 18.325.127.2 38.540.354.0 195.154.840.5 27.617.1103.0100.8117.0115.3141.0134.9161.1489.5144.2107.3 78.0 54.2 13.4 13.215.815.2 18.717.3 20.0 60.2 15.310.1 6.2 3.5 7.2 5.0 3.1 0.0 79.6 2605

40 87.0 16.0 17.724.326.4 37.439.252.5 190.754.641.2 29.218.3111.7108.1124.5121.5149.1143.0168.8514.0151.7113.2 82.6 57.6 14.3 14.217.016.5 20.419.0 22.2 67.7 17.511.7 7.5 4.3 9.6 7.6 6.3 3.3 0.0 79.6 2732


Page 67 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

41 84.0 15.5 17.123.525.5 36.338.051.0 185.453.441.0 29.819.4119.2117.2133.5129.3157.1151.2179.0538.5159.3119.2 87.1 61.0 15.2 15.118.217.8 22.120.8 24.4 75.2 19.713.4 8.7 5.2 12.0 10.1 9.4 6.5 4.2 0.0 79.6 2865

42 82.0 15.1 16.622.824.7 35.136.949.5 180.151.940.1 29.619.7126.2125.1144.8138.6167.2159.4189.3571.1166.9125.1 91.7 64.3 16.0 16.119.519.1 23.922.5 26.6 82.8 21.915.1 9.9 6.1 14.4 12.6 12.5 9.8 8.5 4.3 0.0 79.6 3013

43 80.5 14.8 16.222.023.9 34.035.748.0 174.850.439.0 28.919.6128.5132.4154.5150.3179.3169.6199.5603.7177.0131.1 96.3 67.7 16.9 17.020.720.3 25.624.2 28.8 90.3 24.116.8 11.2 6.9 16.8 15.1 15.7 13.0 12.7 8.6 5.4 0.0 79.6 3167

44 79.0 14.5 15.921.523.1 32.934.646.5 169.548.937.9 28.119.2127.9134.8163.5160.4194.4181.8212.3636.4187.2139.0100.9 71.1 17.8 18.021.921.6 27.326.0 31.1 97.8 26.318.4 12.4 7.8 19.2 17.7 18.8 16.3 17.0 12.9 10.8 17.4 0.0 79.6 3338

45 77.5 14.3 15.621.122.5 31.733.445.0 164.247.436.8 27.318.7125.0134.2166.5169.8207.5197.2227.6677.2197.3147.0107.0 74.5 18.7 18.923.122.9 29.027.7 33.3105.328.520.1 13.7 8.6 21.6 20.2 21.9 19.5 21.2 17.2 16.2 34.9 5.3 0.0 79.6 3516

46 76.0 14.0 15.320.722.1 31.032.343.5 158.945.935.6 26.518.1121.5131.2165.8172.9219.6210.5246.8726.1209.9154.9113.1 79.0 19.6 19.924.324.1 30.729.4 35.5112.930.721.8 14.9 9.5 24.0 22.7 25.1 22.8 25.4 21.5 21.6 52.3 10.7 4.2 0.0 79.6 3698

47 74.5 13.7 15.020.321.7 30.431.542.0 153.644.534.5 25.717.6118.1127.5162.0172.1223.6222.7263.4787.3225.1164.8119.3 83.5 20.8 20.825.525.4 32.431.2 37.7120.432.923.5 16.210.426.4 25.2 28.2 26.1 29.7 25.8 27.0 69.7 16.0 8.4 3.2 0.0 79.6 3882

48 73.0 13.4 14.719.921.3 29.830.941.0 148.343.033.4 24.917.1114.6123.9157.5168.2222.6226.8278.8840.3244.1176.8126.9 88.0 22.0 22.126.826.7 34.132.9 39.9127.935.125.1 17.411.228.8 27.7 31.4 29.3 33.9 30.1 32.4 87.1 21.4 12.5 6.4 2.3 79.6 4050

49 71.5 13.2 14.419.520.9 29.330.440.3 144.841.532.3 24.116.5111.1120.2153.0163.5217.6225.8283.9889.3260.5191.7136.1 93.7 23.2 23.328.427.9 35.834.6 42.1135.437.226.8 18.712.131.2 30.3 34.5 32.6 38.2 34.4 37.8 104.6 26.7 16.7 9.6 4.7 79.6 4200

50 70.0 12.9 14.119.120.5 28.729.839.5 142.240.531.2 23.316.0107.6116.6148.5158.9211.5220.7282.6905.6275.7204.6147.5100.524.7 24.630.029.6 37.536.3 44.4143.039.428.5 19.913.033.6 32.8 37.6 35.8 42.4 38.7 43.2 122.0 32.1 20.9 12.8 7.0 79.6 4307

51 68.5 12.6 13.818.720.0 28.129.238.8 139.539.830.5 22.515.5104.2113.0144.0154.2205.5214.5276.2901.5280.7216.5157.5108.926.4 26.231.631.3 39.738.1 46.6150.541.630.2 21.113.836.0 35.3 40.8 39.1 46.6 43.0 48.6 139.4 37.4 25.1 16.0 9.4 79.6 4379

52 67.0 12.3 13.518.319.6 27.628.638.0 136.939.029.9 22.014.9100.7109.3139.5149.5199.5208.4268.5881.1279.5220.5166.6116.328.7 28.033.633.0 42.040.4 48.8158.043.831.9 22.414.738.4 37.8 43.9 42.3 50.9 47.3 54.0 156.8 42.7 29.2 19.2 11.7 79.6 4419

53 65.5 12.1 13.217.919.2 27.028.137.3 134.238.329.3 21.614.6 97.2 105.7135.0144.8193.4202.3260.9856.6273.1219.5169.7123.030.6 30.436.135.1 44.342.7 51.8165.546.033.5 23.615.640.8 40.3 47.0 45.6 55.1 51.6 59.4 174.3 48.1 33.4 22.4 14.0 79.6 4441

54 64.0 11.8 12.917.518.8 26.427.536.5 131.637.528.8 21.214.3 94.9 102.0130.5140.2187.4196.2253.2832.2265.5214.5168.9125.332.4 32.539.137.7 47.145.0 54.7175.648.235.2 24.916.443.2 42.9 50.2 48.9 59.3 55.9 64.9 191.7 53.4 37.6 25.6 16.4 79.6 4454

55 62.5 11.5 12.617.118.4 25.926.935.8 128.936.828.2 20.814.0 93.2 99.6 126.0135.5181.3190.0245.5807.7258.0208.5165.1124.733.0 34.441.840.9 50.547.9 57.7185.651.136.9 26.117.345.6 45.4 53.3 52.1 63.6 60.2 70.3 209.1 58.8 41.8 28.8 18.7 79.6 4462

56 61.0 11.2 12.316.718.0 25.326.335.0 126.336.127.7 20.413.8 91.4 97.8 123.0130.8175.3183.9237.9783.2250.4202.6160.5121.932.8 35.044.243.6 54.851.3 61.4195.654.039.1 27.418.248.0 47.9 56.4 55.4 67.8 64.5 75.7 226.5 64.1 46.0 32.0 21.0 79.6 4470

57 59.5 11.0 12.016.417.6 24.725.734.3 123.635.327.1 20.013.5 89.7 96.0 120.8127.7169.2177.8230.2758.7242.8196.6155.9118.532.1 34.845.046.2 58.555.7 65.8208.257.041.4 29.019.050.4 50.4 59.6 58.6 72.1 68.8 81.1 244.0 69.5 50.1 35.2 23.4 79.6 4480

58 58.0 10.7 11.716.017.2 24.225.233.5 121.034.626.6 19.613.2 88.0 94.1 118.5125.4165.2171.6222.5734.3235.2190.7151.4115.131.2 34.044.847.0 61.959.4 71.3223.260.643.6 30.720.252.8 53.0 62.7 61.9 76.3 73.1 86.5 261.4 74.8 54.3 38.4 25.7 79.6 4493

59 56.5 10.4 11.415.616.7 23.624.632.8 118.333.826.0 19.213.0 86.2 92.3 116.3123.0162.2167.5214.8709.8227.6184.7146.8111.830.3 33.143.846.8 63.062.9 76.1242.065.046.4 32.321.356.0 55.5 65.8 65.2 80.5 77.4 91.9 278.8 80.1 58.5 41.6 28.1 79.6 4510

60 55.0 10.1 11.115.216.3 23.024.032.0 115.733.125.4 18.812.7 84.5 90.5 114.0120.7159.2164.5209.7685.3220.0178.7142.2108.429.4 32.142.645.7 62.764.0 80.6258.370.549.7 34.422.559.2 58.8 69.0 68.4 84.8 81.7 97.3 296.2 85.5 62.7 44.7 30.4 79.6 4526

61 53.5 9.9 10.814.815.9 22.523.431.3 113.032.424.9 18.412.4 82.8 88.7 111.8118.4156.1161.4205.9669.0212.4172.8137.6105.028.5 31.241.444.5 61.363.7 82.1273.475.253.9 36.923.962.4 62.2 73.1 71.7 89.0 86.0 102.7313.7 90.8 66.8 47.9 32.7 79.6 4546

62 52.0 9.6 10.514.415.5 21.922.930.5 110.431.624.3 18.012.2 81.0 86.8 109.5116.0153.1158.4202.1656.8207.4166.8133.0101.627.6 30.340.143.2 59.662.3 81.7278.479.657.6 40.025.666.4 65.6 77.3 76.0 93.3 90.3 108.1331.1 96.2 71.0 51.1 35.1 79.6 4561

63 50.5 9.3 10.214.015.1 21.322.329.8 107.730.923.8 17.611.9 79.3 85.0 107.3113.7150.1155.3198.2644.5203.6162.9128.4 98.2 26.7 29.338.941.9 57.960.6 79.8277.181.160.9 42.727.871.2 69.8 81.5 80.4 98.9 94.6 113.5348.5101.5 75.2 54.3 37.4 79.6 4571

64 49.0 9.0 10.013.614.7 20.821.729.0 105.130.123.2 17.211.6 77.5 83.2 105.0111.4147.1152.2194.4632.3199.8159.9125.4 94.8 25.8 28.437.740.7 56.258.8 77.6270.980.762.0 45.229.777.2 74.8 86.7 84.7 104.6100.3118.9365.9106.9 79.4 57.5 39.7 79.6 4579

65 47.5 8.7 9.7 13.214.3 20.221.128.3 102.429.422.7 16.811.4 75.8 81.4 102.8109.0144.1149.2190.5620.0196.0156.9123.1 92.6 25.0 27.436.539.4 54.557.1 75.4263.378.961.7 46.031.482.4 81.1 93.0 90.1 110.2106.1126.1383.4112.2 83.5 60.7 42.1 79.6 4586

66 46.0 8.5 9.4 12.813.9 19.620.627.5 99.8 28.722.1 16.411.1 74.1 79.6 100.5106.7141.0146.1186.7607.8192.2153.9120.8 90.9 24.4 26.535.338.1 52.855.4 73.2255.876.760.4 45.832.087.2 86.6100.8 96.6 117.3111.8133.3406.6117.5 87.7 63.9 44.4 79.6 4600

67 44.5 8.2 9.1 12.413.5 19.120.026.8 97.1 27.921.5 16.010.8 72.3 77.7 98.3 104.4138.0143.0182.9595.6188.4150.9118.5 89.2 23.9 25.834.136.8 51.153.6 71.0248.374.558.7 44.831.888.8 91.6107.6104.8125.7119.0140.5429.8124.7 91.9 67.1 46.8 79.6 4614

68 43.0 7.9 8.8 12.013.0 18.519.426.0 94.5 27.221.0 15.510.6 70.6 75.9 96.0 102.0135.0140.0179.0583.3184.6148.0116.2 87.5 23.5 25.433.235.6 49.451.9 68.8240.872.357.0 43.531.188.4 93.3113.9111.8136.3127.6149.5453.1131.8 97.5 70.3 49.1 79.6 4627

69 41.5 7.6 8.5 11.612.6 17.918.825.3 91.8 26.420.4 15.110.3 68.9 74.1 93.8 99.7 132.0136.9175.2571.1180.8145.0113.9 85.8 23.0 24.932.634.7 47.750.2 66.5233.270.155.3 42.330.286.4 92.9116.0118.4145.5138.3160.3482.1138.9103.0 74.6 51.4 79.6 4642

70 40.0 7.4 8.2 11.312.2 17.418.324.5 89.2 25.719.9 14.710.0 67.1 72.3 91.5 97.3 128.9133.8171.4558.9177.0142.0111.6 84.1 22.6 24.432.034.1 46.648.5 64.3225.767.953.6 41.029.484.0 90.8115.5120.5154.0147.6173.8516.9147.8108.6 78.8 54.5 79.6 4657

71 38.5 7.1 7.9 10.911.8 16.817.723.8 86.5 24.919.3 14.3 9.8 65.4 70.4 89.3 95.0 125.9130.8167.5546.6173.2139.0109.3 82.4 22.1 24.031.433.5 45.747.3 62.1218.265.752.0 39.828.581.6 88.2112.9120.0156.8156.2185.5560.5158.5115.6 83.1 57.7 79.6 4672

72 37.0 6.8 7.6 10.511.4 16.217.123.0 83.9 24.218.8 13.9 9.5 63.7 68.6 87.0 92.7 122.9127.7163.7534.4169.4136.0107.0 80.7 21.7 23.530.832.8 44.946.4 60.6210.763.550.3 38.527.779.2 85.7109.7117.3156.1159.1196.3598.3171.9123.9 88.4 60.8 79.6 4674

73 35.5 6.5 7.3 10.111.0 15.716.522.3 81.2 23.518.2 13.5 9.2 61.9 66.8 84.8 90.3 119.9124.6159.9522.1165.7133.1104.7 79.0 21.2 23.030.232.2 44.045.6 59.5205.761.348.6 37.326.876.8 83.2106.6114.0152.6158.4199.9633.1183.4134.4 94.8 64.7 79.6 4665

74 34.0 6.3 7.0 9.7 10.6 15.115.921.5 78.6 22.717.6 13.1 9.0 60.2 65.0 82.5 88.0 116.9121.6156.0509.9161.9130.1102.4 77.3 20.8 22.529.631.5 43.244.7 58.4201.959.946.9 36.125.974.4 80.7103.4110.8148.4154.8199.0644.7194.1143.4102.869.3 79.6 4626

75 32.5 6.0 6.7 9.3 10.2 14.515.420.8 75.9 22.017.1 12.7 8.7 58.5 63.2 80.3 85.7 113.8118.5152.2497.7158.1127.1100.1 75.6 20.4 22.129.030.9 42.343.8 57.3198.158.845.8 34.825.172.0 78.2100.3107.5144.1150.5194.5641.8197.7151.8109.775.2 79.6 4561

76 31.0 5.7 6.4 8.9 9.7 14.014.820.0 73.3 21.216.5 12.3 8.4 56.7 61.3 78.0 83.3 110.8115.4148.3485.4154.3124.1 97.9 73.9 19.9 21.628.430.3 41.543.0 56.2194.457.745.0 34.024.269.6 75.6 97.2 104.2139.9146.2189.1627.3196.8154.6116.180.3 79.6 4473

77 29.5 5.4 6.1 8.5 9.3 13.414.219.3 70.6 20.516.0 11.9 8.2 55.0 59.5 75.8 81.0 107.8112.4144.5473.2150.5121.2 95.6 72.2 19.5 21.127.829.6 40.642.1 55.1190.656.644.1 33.423.667.2 73.1 94.0 101.0135.6141.9183.7609.9192.3153.9118.384.9 79.6 4371

78 28.0 5.2 5.8 8.1 8.9 12.813.618.5 68.0 19.815.4 11.5 7.9 53.2 57.7 73.5 78.7 104.8109.3140.7461.0146.7118.2 93.3 70.6 19.0 20.627.229.0 39.741.2 54.0186.855.543.3 32.723.265.6 70.6 90.9 97.7 131.4137.6178.3592.5187.0150.4117.786.5 79.6 4261

79 26.5 4.9 5.5 7.7 8.5 12.313.117.8 65.3 19.014.9 11.1 7.6 51.5 55.9 71.3 76.3 101.7106.3136.8448.7142.9115.2 91.0 68.9 18.6 20.226.628.4 38.940.4 52.9183.154.442.5 32.122.864.4 68.9 87.8 94.5 127.2133.3172.9575.0181.7146.2115.186.1 79.6 4147

80 25.0 4.6 5.2 7.3 8.1 11.712.517.0 62.7 18.314.3 10.7 7.4 49.8 54.1 69.0 74.0 98.7 103.2133.0436.5139.1112.2 88.7 67.2 18.1 19.725.927.7 38.039.5 51.8179.353.341.6 31.522.363.2 67.7 85.7 91.2 122.9129.0167.5557.6176.3142.0111.984.1 79.6 4033

81 23.5 4.3 4.9 6.9 7.7 11.111.916.3 60.0 17.513.7 10.3 7.1 48.0 52.2 66.8 71.6 95.7 100.1129.2424.2135.3109.2 86.4 65.5 17.7 19.225.327.1 37.238.7 50.6175.652.240.8 30.921.962.0 66.4 84.1 89.0 118.7124.7162.1540.2171.0137.9108.781.8 79.6 3919

82 22.0 4.1 4.6 6.5 7.3 10.611.315.5 57.4 16.813.2 9.9 6.8 46.3 50.4 64.5 69.3 92.7 97.1 125.3412.0131.5106.3 84.1 63.8 17.2 18.824.726.5 36.337.8 49.5171.851.140.0 30.321.560.8 65.1 82.5 87.4 115.9120.4156.7522.8165.6133.7105.579.5 79.6 3808

83 21.0 3.9 4.3 6.2 6.9 10.010.814.8 54.7 16.112.6 9.5 6.6 44.6 48.6 62.3 67.0 89.7 94.0 121.5399.8127.7103.3 81.8 62.1 16.8 18.324.125.8 35.536.9 48.4168.050.039.1 29.621.059.6 63.9 81.0 85.8 113.7117.5151.3505.3160.3129.5102.377.1 79.6 3699

84 20.0 3.7 4.1 5.8 6.5 9.4 10.214.0 52.1 15.312.1 9.1 6.3 42.8 46.8 60.0 64.6 86.6 90.9 117.7387.5123.9100.3 79.5 60.4 16.3 17.823.525.2 34.636.1 47.3164.348.938.3 29.020.658.4 62.6 79.4 84.2 111.6115.4147.7487.9154.9125.3 99.1 74.8 79.6 3592


Page 68 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

85 19.0 3.5 3.9 5.5 6.0 8.9 9.6 13.3 49.4 14.611.5 8.7 6.0 41.1 44.9 57.8 62.3 83.6 87.9 113.8375.3120.1 97.3 77.2 58.7 15.9 17.322.924.6 33.835.2 46.2160.547.837.4 28.420.257.2 61.4 77.8 82.5 109.5113.2145.0476.3149.6121.1 95.9 72.5 79.6 3493

86 18.0 3.3 3.7 5.2 5.8 8.3 9.0 12.5 46.8 13.811.0 8.3 5.8 39.4 43.1 55.5 60.0 80.6 84.8 110.0363.1116.3 94.3 74.9 57.0 15.5 16.922.323.9 32.934.3 45.1156.846.736.6 27.819.756.0 60.1 76.3 80.9 107.4111.1142.3467.6146.0117.0 92.7 70.1 79.6 3398

87 17.0 3.1 3.6 5.0 5.5 7.9 8.5 11.8 44.1 13.110.4 7.9 5.5 37.6 41.3 53.3 57.6 77.6 81.7 106.1350.8112.5 91.4 72.6 55.3 15.0 16.421.723.3 32.133.5 44.0153.045.635.8 27.119.354.8 58.8 74.7 79.3 105.3108.9139.6458.9143.4114.2 89.5 67.8 79.6 3306

88 16.0 3.0 3.4 4.7 5.2 7.6 8.1 11.0 41.5 12.4 9.8 7.5 5.2 35.9 39.5 51.0 55.3 74.5 78.7 102.3338.6108.8 88.4 70.3 53.6 14.6 15.921.122.7 31.232.6 42.9149.244.534.9 26.518.953.6 57.6 73.1 77.6 103.1106.8136.9450.1140.7112.1 87.4 65.4 79.6 3215

89 15.0 2.8 3.2 4.5 4.9 7.2 7.7 10.5 38.9 11.6 9.3 7.1 5.0 34.1 37.7 48.8 53.0 71.5 75.6 98.5 326.3105.0 85.4 68.0 51.9 14.1 15.420.522.0 30.431.7 41.8145.543.534.1 25.918.452.4 56.3 71.6 76.0 101.0104.6134.2441.4138.0110.0 85.8 63.9 79.6 3126

90 14.0 2.6 3.0 4.2 4.7 6.8 7.3 10.0 37.1 10.9 8.7 6.7 4.7 32.4 35.8 46.5 50.6 68.5 72.5 94.6 314.1101.2 82.4 65.7 50.2 13.7 15.019.921.4 29.530.9 40.7141.742.433.3 25.318.051.2 55.1 70.0 74.4 98.9 102.5131.5432.7135.3107.9 84.2 62.7 79.6 3039

91 13.0 2.4 2.8 3.9 4.4 6.4 6.9 9.5 35.3 10.4 8.2 6.3 4.4 30.7 34.0 44.3 48.3 65.5 69.5 90.8 301.9 97.4 79.4 63.5 48.5 13.2 14.519.320.8 28.730.0 39.6137.941.332.4 24.717.650.0 53.8 68.4 72.8 96.8 100.3128.8424.0132.7105.8 82.6 61.6 79.6 2951

92 12.0 2.2 2.6 3.7 4.1 6.0 6.5 9.0 33.6 9.9 7.8 5.9 4.2 28.9 32.2 42.0 45.9 62.5 66.4 87.0 289.6 93.6 76.5 61.2 46.8 12.8 14.018.720.1 27.829.1 38.4134.240.231.6 24.017.148.8 52.5 66.9 71.1 94.7 98.2 126.1415.3130.0103.7 81.0 60.4 79.6 2864

93 11.0 2.0 2.4 3.4 3.8 5.7 6.2 8.5 31.8 9.4 7.4 5.6 3.9 27.2 30.4 39.8 43.6 59.4 63.3 83.1 277.4 89.8 73.5 58.9 45.2 12.3 13.618.019.5 27.028.3 37.3130.439.130.7 23.416.747.6 51.3 65.3 69.5 92.5 96.0 123.4406.6127.3101.7 79.4 59.2 79.6 2777

94 10.0 1.8 2.2 3.1 3.6 5.3 5.8 8.0 30.0 8.9 7.1 5.4 3.7 25.5 28.5 37.5 41.3 56.4 60.3 79.3 265.2 86.0 70.5 56.6 43.5 11.9 13.117.418.8 26.127.4 36.2126.738.029.9 22.816.346.4 50.0 63.7 67.9 90.4 93.9 120.7397.9124.7 99.6 77.8 58.0 79.6 2690

95 9.0 1.7 2.0 2.9 3.3 4.9 5.4 7.5 28.3 8.4 6.7 5.1 3.6 24.3 26.7 35.3 38.9 53.4 57.2 75.5 252.9 82.2 67.5 54.3 41.8 11.4 12.616.818.2 25.326.5 35.1122.936.929.1 22.215.845.2 48.7 62.2 66.2 88.3 91.7 118.0389.2122.0 97.5 76.2 56.9 79.6 2604

96 8.0 1.5 1.8 2.6 3.0 4.5 5.0 7.0 26.5 7.9 6.3 4.8 3.4 23.2 25.5 33.0 36.6 50.4 54.1 71.6 240.7 78.4 64.6 52.0 40.1 11.0 12.116.217.6 24.425.7 34.0119.135.828.2 21.615.444.0 47.5 60.6 64.6 86.2 89.6 115.3380.4119.3 95.4 74.6 55.7 79.6 2518

97 7.0 1.3 1.6 2.4 2.7 4.2 4.6 6.5 24.7 7.4 5.9 4.6 3.2 22.0 24.3 31.5 34.3 47.3 51.1 67.8 228.4 74.6 61.6 49.7 38.4 10.6 11.715.616.9 23.624.8 32.9115.434.727.4 20.915.042.8 46.2 59.0 63.0 84.1 87.4 112.6371.7116.7 93.3 73.0 54.5 79.6 2433

98 6.0 1.1 1.4 2.1 2.5 3.8 4.2 6.0 23.0 6.9 5.6 4.3 3.0 20.8 23.1 30.0 32.7 44.3 48.0 63.9 216.2 70.8 58.6 47.4 36.7 10.1 11.215.016.3 22.723.9 31.8111.633.626.5 20.314.641.6 45.0 57.5 61.3 82.0 85.3 109.9363.0114.0 91.2 71.4 53.4 79.6 2349

99 5.0 0.9 1.2 1.8 2.2 3.4 3.8 5.5 21.2 6.4 5.2 4.0 2.8 19.7 21.9 28.5 31.2 42.3 45.0 60.1 204.0 67.0 55.6 45.1 35.0 9.7 10.714.415.7 21.923.1 30.7107.832.525.7 19.714.140.4 43.7 55.9 59.7 79.8 83.1 107.2354.3111.3 89.1 69.8 52.2 79.6 2266

100 4.0 0.7 1.0 1.6 1.9 3.0 3.5 5.0 19.4 5.9 4.8 3.8 2.7 18.5 20.7 27.0 29.6 40.3 42.9 56.3 191.7 63.2 52.6 42.8 33.3 9.2 10.213.815.0 21.022.2 29.6104.131.424.9 19.113.739.2 42.4 54.3 58.1 77.7 81.0 104.5345.6108.6 87.0 68.2 51.0 79.6 2184

101 3.0 0.6 0.8 1.3 1.7 2.6 3.1 4.5 17.7 5.4 4.5 3.5 2.5 17.4 19.4 25.5 28.0 38.3 40.9 53.7 179.5 59.4 49.7 40.5 31.6 8.8 9.8 13.214.4 20.221.3 28.5100.330.324.0 18.413.338.0 41.2 52.8 56.5 75.6 78.8 101.8336.9106.0 84.9 66.6 49.9 79.6 2103

102 2.0 0.4 0.6 1.1 1.4 2.3 2.7 4.0 15.9 4.9 4.1 3.2 2.3 16.2 18.2 24.0 26.5 36.3 38.8 51.2 171.3 55.6 46.7 38.2 29.9 8.3 9.3 12.613.8 19.320.5 27.4 96.6 29.223.2 17.812.836.8 39.9 51.2 54.8 73.5 76.7 99.1 328.2103.3 82.9 65.0 48.7 79.6 2026

103 1.5 0.3 0.4 0.8 1.1 1.9 2.3 3.5 14.1 4.5 3.7 3.0 2.1 15.1 17.0 22.5 24.9 34.3 36.8 48.6 163.2 53.1 43.7 35.9 28.2 7.9 8.8 12.013.1 18.519.6 26.2 92.8 28.122.4 17.212.435.6 38.7 49.6 53.2 71.4 74.5 96.4 319.5100.6 80.8 63.4 47.5 79.6 1950

104 1.0 0.2 0.3 0.5 0.8 1.5 1.9 3.0 12.4 4.0 3.3 2.7 2.0 13.9 15.8 21.0 23.4 32.2 34.7 46.0 155.0 50.6 41.7 33.6 26.5 7.4 8.4 11.412.5 17.618.8 25.1 89.0 27.021.5 16.612.034.4 37.4 48.1 51.6 69.2 72.4 93.7 310.7 98.0 78.7 61.8 46.4 79.6 1876

105 0.5 0.1 0.2 0.4 0.6 1.1 1.5 2.5 10.6 3.5 3.0 2.4 1.8 12.7 14.6 19.5 21.8 30.2 32.7 43.5 146.9 48.1 39.7 32.1 24.8 7.0 7.9 10.711.9 16.817.9 24.0 85.3 25.920.7 16.011.533.2 36.1 46.5 49.9 67.1 70.2 91.0 302.0 95.3 76.6 60.2 45.2 79.6 1803

106 0.0 0.0 0.1 0.3 0.4 0.8 1.2 2.0 8.8 3.0 2.6 2.1 1.6 11.6 13.4 18.0 20.3 28.2 30.7 40.9 138.7 45.5 37.7 30.6 23.7 6.5 7.4 10.111.2 15.917.0 22.9 81.5 24.819.8 15.311.132.0 34.9 44.9 48.3 65.0 68.1 88.3 293.3 92.6 74.5 58.6 44.0 79.6 1730

107 0.0 0.0 0.0 0.1 0.3 0.6 0.8 1.5 7.1 2.5 2.2 1.9 1.4 10.4 12.1 16.5 18.7 26.2 28.6 38.4 130.5 43.0 35.8 29.1 22.6 6.2 6.9 9.5 10.6 15.116.2 21.8 77.8 23.719.0 14.710.730.8 33.6 43.4 46.7 62.9 65.9 85.6 284.6 89.9 72.4 57.0 42.9 79.6 1657

108 0.0 0.0 0.0 0.0 0.1 0.4 0.6 1.0 5.3 2.0 1.9 1.6 1.2 9.3 10.9 15.0 17.1 24.2 26.6 35.8 122.4 40.5 33.8 27.5 21.5 5.9 6.6 8.9 10.0 14.215.3 20.7 74.0 22.618.2 14.110.229.6 32.4 41.8 45.1 60.8 63.8 82.9 275.9 87.3 70.3 55.4 41.7 79.6 1586

109 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.8 3.5 1.5 1.5 1.3 1.1 8.1 9.7 13.5 15.6 22.2 24.5 33.3 114.2 37.9 31.8 26.0 20.3 5.6 6.3 8.5 9.3 13.314.4 19.6 70.2 21.517.3 13.5 9.8 28.4 31.1 40.2 43.4 58.6 61.6 80.2 267.2 84.6 68.2 53.8 40.5 79.6 1514

110 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.5 2.7 1.0 1.1 1.1 0.9 6.9 8.5 12.0 14.0 20.2 22.5 30.7 106.1 35.4 29.8 24.5 19.2 5.4 6.0 8.1 8.9 12.513.6 18.5 66.5 20.516.5 12.9 9.4 27.2 29.8 38.7 41.8 56.5 59.5 77.5 258.5 81.9 66.1 52.2 39.3 79.6 1444

111 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.8 0.7 0.7 0.8 0.7 5.8 7.3 10.5 12.5 18.1 20.4 28.1 97.9 32.9 27.8 22.9 18.1 5.1 5.7 7.7 8.5 11.912.7 17.4 62.7 19.415.7 12.2 8.9 26.0 28.6 37.1 40.2 54.4 57.3 74.8 249.8 79.3 64.1 50.6 38.2 79.6 1375

112 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 0.5 0.6 0.5 0.5 4.6 6.1 9.0 10.9 16.1 18.4 25.6 89.7 30.4 25.8 21.4 16.9 4.8 5.4 7.3 8.0 11.412.1 16.3 58.9 18.314.8 11.6 8.5 24.8 27.3 35.5 38.5 52.3 55.2 72.1 241.1 76.6 62.0 49.0 37.0 79.6 1306

113 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.4 0.4 0.4 3.5 4.9 7.5 9.3 14.1 16.4 23.0 81.6 27.8 23.8 19.9 15.8 4.5 5.0 6.9 7.6 10.811.5 15.5 55.2 17.214.0 11.0 8.1 23.6 26.1 34.0 36.9 50.2 53.0 69.4 232.3 73.9 59.9 47.4 35.8 79.6 1238

114 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.3 2.3 3.6 6.0 7.8 12.1 14.3 20.5 73.4 25.3 21.9 18.4 14.7 4.2 4.7 6.5 7.2 10.211.0 14.8 52.7 16.113.1 10.4 7.6 22.4 24.8 32.4 35.3 48.0 50.9 66.7 223.6 71.2 57.8 45.8 34.7 79.6 1172

115 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 1.7 2.4 4.5 6.2 10.1 12.3 17.9 65.3 22.8 19.9 16.8 13.6 3.9 4.4 6.1 6.8 9.7 10.4 14.1 50.2 15.312.3 9.7 7.2 21.2 23.5 30.8 33.7 45.9 48.7 64.0 214.9 68.6 55.7 44.2 33.5 79.6 1108

116 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.2 1.8 3.0 4.7 8.1 10.2 15.4 57.1 20.2 17.9 15.3 12.4 3.6 4.1 5.7 6.4 9.1 9.8 13.3 47.7 14.611.7 9.1 6.8 20.0 22.3 29.3 32.0 43.8 46.6 61.2 206.2 65.9 53.6 42.6 32.3 79.6 1044

117 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.2 2.3 3.1 6.0 8.2 12.8 49.0 17.7 15.9 13.8 11.3 3.3 3.8 5.3 5.9 8.5 9.2 12.6 45.1 13.911.2 8.7 6.3 18.8 21.0 27.7 30.4 41.7 44.4 58.5 197.5 63.2 51.5 41.0 31.2 79.6 982

118 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.5 2.3 4.0 6.1 10.2 40.8 15.2 13.9 12.2 10.2 3.0 3.5 4.9 5.5 8.0 8.7 11.8 42.6 13.110.6 8.3 6.1 17.6 19.8 26.1 28.8 39.6 42.3 55.8 188.8 60.6 49.4 39.4 30.0 79.6 921

119 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.6 3.0 4.1 7.7 32.6 12.6 11.9 10.7 9.0 2.7 3.2 4.5 5.1 7.4 8.1 11.1 40.1 12.410.1 7.9 5.8 16.8 18.5 24.6 27.1 37.4 40.1 53.1 180.1 57.9 47.3 37.8 28.8 79.6 861

120 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.0 3.1 5.1 24.5 10.1 9.9 9.2 7.9 2.4 2.8 4.1 4.7 6.8 7.5 10.4 37.6 11.7 9.5 7.5 5.5 16.0 17.7 23.0 25.5 35.3 38.0 50.4 171.4 55.2 45.3 36.2 27.7 79.6 804

121 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.0 3.8 16.3 7.6 7.9 7.6 6.8 2.1 2.5 3.7 4.2 6.3 6.9 9.6 35.1 11.0 8.9 7.0 5.2 15.2 16.8 21.9 23.9 33.2 35.8 47.7 162.6 52.5 43.2 34.6 26.5 79.6 749

122 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.6 12.2 5.1 6.0 6.1 5.6 1.8 2.2 3.2 3.8 5.7 6.3 8.9 32.6 10.2 8.4 6.6 4.9 14.4 16.0 20.9 22.8 31.1 33.7 45.0 153.9 49.9 41.1 33.0 25.3 79.6 700

123 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 8.2 3.8 4.0 4.6 4.5 1.5 1.9 2.8 3.4 5.1 5.8 8.1 30.1 9.5 7.8 6.2 4.6 13.6 15.1 19.9 21.7 29.7 31.5 42.3 145.2 47.2 39.0 31.4 24.2 79.6 654

124 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.1 2.5 3.0 3.1 3.4 1.2 1.6 2.4 3.0 4.5 5.2 7.4 27.6 8.8 7.3 5.8 4.3 12.8 14.3 18.8 20.6 28.3 30.1 39.6 136.5 44.5 36.9 29.8 23.0 79.6 610

125 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 2.0 2.3 2.3 0.9 1.3 2.0 2.5 4.0 4.6 6.7 25.1 8.0 6.7 5.4 4.0 12.0 13.5 17.8 19.5 26.8 28.7 37.8 127.8 41.9 34.8 28.2 21.8 79.6 569

126 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.5 1.7 0.6 1.0 1.6 2.1 3.4 4.0 5.9 22.6 7.3 6.2 5.0 3.7 11.2 12.6 16.7 18.5 25.4 27.2 36.0 122.0 39.2 32.7 26.6 20.7 79.6 536

127 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.1 0.5 0.6 1.2 1.7 2.8 3.5 5.2 20.1 6.6 5.6 4.6 3.5 10.4 11.8 15.7 17.4 24.0 25.8 34.2 116.2 37.4 30.6 25.0 19.5 79.6 505

128 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 0.3 0.5 0.8 1.3 2.3 2.9 4.4 17.6 5.8 5.0 4.1 3.2 9.6 10.9 14.6 16.3 22.6 24.4 32.4 110.4 35.6 29.2 23.4 18.3 79.6 476


Page 69 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

129 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.6 0.9 1.7 2.3 3.7 15.1 5.1 4.5 3.7 2.9 8.8 10.1 13.6 15.2 21.2 22.9 30.6 104.6 33.8 27.9 22.4 17.1 79.6 449

130 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.6 1.1 1.7 3.0 12.5 4.4 3.9 3.3 2.6 8.0 9.2 12.5 14.1 19.8 21.5 28.8 98.7 32.1 26.5 21.3 16.4 79.6 422

131 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.9 1.2 2.2 10.0 3.7 3.4 2.9 2.3 7.2 8.4 11.5 13.0 18.4 20.1 27.0 92.9 30.3 25.1 20.2 15.6 79.6 396

132 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.6 0.9 1.5 7.5 2.9 2.8 2.5 2.0 6.4 7.6 10.5 11.9 17.0 18.6 25.2 87.1 28.5 23.7 19.2 14.8 79.6 371

133 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.6 1.1 5.0 2.2 2.2 2.1 1.7 5.6 6.7 9.4 10.9 15.5 17.2 23.4 81.3 26.7 22.3 18.1 14.0 79.6 346

134 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.7 3.8 1.5 1.7 1.7 1.4 4.8 5.9 8.4 9.8 14.1 15.8 21.6 75.5 24.9 20.9 17.0 13.2 79.6 323

135 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.5 1.1 1.1 1.2 1.2 4.0 5.0 7.3 8.7 12.7 14.3 19.8 69.7 23.2 19.5 16.0 12.5 79.6 300

136 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 0.7 0.8 0.8 0.9 3.2 4.2 6.3 7.6 11.3 12.9 18.0 63.9 21.4 18.1 14.9 11.7 79.6 278

137 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.6 0.6 0.6 2.4 3.4 5.2 6.5 9.9 11.5 16.2 58.1 19.6 16.7 13.9 10.9 79.6 256

138 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.4 0.4 1.6 2.5 4.2 5.4 8.5 10.0 14.4 52.3 17.8 15.3 12.8 10.1 79.6 236

139 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 1.2 1.7 3.1 4.3 7.1 8.6 12.6 46.5 16.0 13.9 11.7 9.4 79.6 216

140 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.8 1.3 2.1 3.3 5.7 7.2 10.8 40.7 14.3 12.5 10.7 8.6 79.6 197

141 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 1.6 2.2 4.2 5.7 9.0 34.9 12.5 11.1 9.6 7.8 79.6 179

142 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.0 1.6 2.8 4.3 7.2 29.0 10.7 9.8 8.5 7.0 79.6 162

143 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.1 2.1 2.9 5.4 23.2 8.9 8.4 7.5 6.2 79.6 146

144 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.4 2.2 3.6 17.4 7.1 7.0 6.4 5.5 79.6 131

145 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.4 2.7 11.6 5.3 5.6 5.3 4.7 79.6 117

146 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.8 8.7 3.6 4.2 4.3 3.9 79.6 107

147 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 5.8 2.7 2.8 3.2 3.1 79.6 98

148 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.9 1.8 2.1 2.1 2.3 79.6 91

149 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 1.4 1.6 1.6 79.6 85

150 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.1 1.2 79.6 83

151 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.8 79.6 81

152 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 79.6 80


Page 70 of 100


Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

0.18 0.20 0.26 0.27 0.38 0.38 0.50 1.77 0.49 0.37 0.27 0.18 1.16 1.21 1.50 1.56 2.01 2.04 2.56 8.16 2.53 1.99 1.53 1.13 0.30 0.32 0.41 0.42 0.57 0.58 0.74 2.51 0.73 0.56 0.41 0.29 0.80 0.84 1.04 1.09 1.41 1.43 1.80 5.81 1.78 1.39 1.07 0.78 0 0.0 0.0 55.2 55

1 3.0 0.6 0.0 55.2 56

2 7.0 1.3 0.6 0.0 55.2 57

3 11.0 2.0 1.4 0.8 0.0 55.2 59

4 15.0 2.8 2.2 1.8 0.8 0.0 55.2 63

5 18.0 3.3 3.0 2.9 1.9 1.1 0.0 55.2 67

6 22.0 4.1 3.6 3.9 3.0 2.6 1.2 0.0 55.2 73

7 26.0 4.8 4.3 4.7 4.1 4.2 2.7 1.5 0.0 55.2 81

8 29.0 5.3 5.1 5.8 4.9 5.7 4.2 3.5 5.3 0.0 55.2 95

9 33.0 6.1 5.7 6.8 6.0 6.8 5.8 5.5 12.4 1.5 0.0 55.2 112

10 37.0 6.8 6.5 7.6 7.1 8.3 6.9 7.5 19.4 3.5 1.1 0.0 55.2 130

11 40.0 7.4 7.3 8.6 8.0 9.8 8.5 9.0 26.5 5.4 2.6 0.8 0.0 55.2 149

12 44.0 8.1 7.9 9.7 9.1 11.0 10.0 11.0 31.8 7.4 4.1 1.9 0.5 0.0 55.2 168

13 48.0 8.8 8.7 10.5 10.2 12.5 11.1 13.0 38.9 8.9 5.6 3.0 1.2 3.5 0.0 55.2 191

14 52.0 9.6 9.5 11.5 11.0 14.0 12.7 14.5 45.9 10.9 6.7 4.0 2.0 8.1 3.6 0.0 55.2 219

15 56.0 10.3 10.2 12.6 12.1 15.1 14.2 16.5 51.2 12.8 8.2 4.8 2.7 12.7 8.5 4.5 0.0 55.2 252

16 63.0 11.6 11.0 13.6 13.2 16.6 15.4 18.5 58.3 14.3 9.7 5.9 3.2 17.4 13.4 10.5 4.7 0.0 55.2 292

17 72.0 13.3 12.4 14.7 14.3 18.1 16.9 20.0 65.3 16.3 10.8 7.0 3.9 20.8 18.2 16.5 10.9 6.0 0.0 55.2 341

18 80.0 14.7 14.2 16.5 15.4 19.6 18.4 22.0 70.6 18.3 12.3 7.8 4.6 25.5 21.9 22.5 17.1 14.1 6.1 0.0 55.2 397

19 88.0 16.2 15.8 18.8 17.3 21.2 20.0 24.0 77.7 19.8 13.7 8.8 5.2 30.1 26.7 27.0 23.4 22.2 14.3 7.7 0.0 55.2 465

20 96.0 17.7 17.3 20.9 19.8 23.8 21.5 26.0 84.8 21.7 14.9 9.9 5.9 33.6 31.6 33.0 28.0 30.2 22.5 17.9 24.5 0.0 55.2 561

21 103.0 19.0 18.9 23.0 22.0 27.2 24.2 28.0 91.8 23.7 16.3 10.7 6.6 38.2 35.2 39.0 34.3 36.3 30.7 28.1 57.1 7.6 0.0 55.2 673

22 107.0 19.7 20.3 25.1 24.2 30.2 27.7 31.5 98.9 25.7 17.8 11.8 7.1 42.8 40.1 43.5 40.5 44.3 36.8 38.4 89.7 17.7 6.0 0.0 55.2 795

23 106.0 19.5 21.1 26.9 26.4 33.2 30.7 36.0 111.2 27.7 19.3 12.9 7.8 46.3 44.9 49.5 45.2 52.4 45.0 46.0 122.4 27.8 13.9 4.6 0.0 55.2 926

24 102.0 18.8 20.9 28.0 28.3 36.3 33.8 40.0 127.1 31.1 20.8 13.9 8.5 50.9 48.6 55.5 51.4 58.4 53.1 56.3 146.9 37.9 21.9 10.7 3.4 0.0 55.2 1058

25 97.0 17.9 20.1 27.7 29.4 38.9 36.9 44.0 141.3 35.6 23.4 15.0 9.2 55.6 53.4 60.0 57.6 66.5 59.3 66.5 179.5 45.5 29.8 16.8 7.9 0.9 0.0 55.2 1194

26 93.0 17.1 19.1 26.7 29.1 40.4 39.6 48.0 155.4 39.5 26.7 16.9 10.0 60.2 58.3 66.0 62.3 74.5 67.4 74.2 212.1 55.6 35.8 22.9 12.4 2.1 1.0 0.0 55.2 1328

27 90.0 16.6 18.3 25.4 28.0 40.0 41.1 51.5 169.5 43.5 29.7 19.3 11.2 64.8 63.2 72.0 68.5 80.6 75.6 84.4 236.6 65.8 43.7 27.5 16.9 3.3 2.2 1.2 0.0 55.2 1456

28 87.0 16.0 17.7 24.3 26.6 38.5 40.7 53.5 181.9 47.4 32.7 21.4 12.8 72.9 68.0 78.0 74.8 88.6 81.7 94.6 269.2 73.3 51.6 33.6 20.3 4.5 3.5 2.8 1.3 0.0 55.2 1588

29 84.0 15.5 17.1 23.5 25.5 36.6 39.2 53.0 188.9 50.9 35.6 23.6 14.2 83.3 76.5 84.0 81.0 96.7 89.9 102.3 301.9 83.5 57.6 39.8 24.8 5.4 4.7 4.5 3.0 1.7 0.0 55.2 1719

30 81.0 14.9 16.6 22.8 24.7 35.1 37.3 51.0 187.2 52.9 38.2 25.7 15.6 92.6 87.4 94.5 87.2 104.8 98.1 112.5 326.3 93.6 65.5 44.3 29.4 6.5 5.7 6.1 4.7 4.0 1.7 0.0 55.2 1842

31 79.0 14.5 16.0 22.0 23.9 34.0 35.7 48.5 180.1 52.4 39.7 27.6 17.1 101.9 97.2 108.0 98.1 112.8 106.3 122.8 359.0 101.2 73.5 50.5 32.7 7.7 6.9 7.3 6.4 6.3 4.0 2.2 0.0 55.2 1971

32 77.0 14.2 15.6 21.2 23.1 32.9 34.6 46.5 171.3 50.4 39.4 28.7 18.3 111.1 106.9 120.0 112.1 126.9 114.4 133.0 391.6 111.3 79.4 56.6 37.3 8.6 8.2 8.9 7.6 8.5 6.3 5.2 7.5 0.0 55.2 2113

33 75.0 13.8 15.2 20.7 22.2 31.7 33.4 45.0 164.2 47.9 37.9 28.4 19.0 119.2 116.6 132.0 124.6 145.1 128.7 143.2 424.2 121.4 87.4 61.2 41.8 9.8 9.1 10.5 9.3 10.2 8.7 8.1 17.6 2.2 0.0 55.2 2265

34 73.0 13.4 14.8 20.1 21.7 30.6 32.3 43.5 158.9 45.9 36.0 27.3 18.8 123.8 125.1 144.0 137.1 161.2 147.1 161.1 456.9 131.5 95.3 67.3 45.2 11.0 10.4 11.8 11.0 12.5 10.4 11.1 27.6 5.1 1.7 0.0 55.2 2427

35 71.0 13.1 14.4 19.6 21.1 29.8 31.1 42.0 153.6 44.5 34.5 26.0 18.1 122.7 130.0 154.5 149.5 177.3 163.5 184.1 514.0 141.6 103.3 73.4 49.7 11.9 11.7 13.4 12.3 14.8 12.7 13.3 37.6 8.0 3.9 1.2 0.0 55.2 2607

36 69.0 12.7 14.0 19.1 20.6 29.1 30.4 40.5 148.3 43.0 33.4 24.9 17.2 118.1 128.7 160.5 160.4 193.4 179.8 204.6 587.4 159.3 111.2 79.5 54.2 13.1 12.6 15.0 14.0 16.5 15.0 16.3 45.1 11.0 6.2 2.9 0.9 0.0 55.2 2794

37 67.0 12.3 13.6 18.6 20.0 28.3 29.6 39.5 143.0 41.5 32.3 24.1 16.5 112.3 123.9 159.0 166.6 207.5 196.2 225.1 652.7 182.1 125.1 85.6 58.7 14.3 13.9 16.2 15.7 18.7 16.7 19.2 55.2 13.1 8.4 4.6 2.0 2.4 0.0 55.2 2970

38 65.0 12.0 13.2 18.1 19.5 27.6 28.8 38.5 139.5 40.0 31.2 23.3 16.0 107.6 117.8 153.0 165.1 215.6 210.5 245.5 717.9 202.3 143.0 96.3 63.2 15.5 15.1 17.8 16.9 21.0 19.0 21.4 65.2 16.1 10.1 6.2 3.2 5.6 2.5 0.0 55.2 3136

39 63.0 11.6 12.8 17.5 18.9 26.8 28.1 37.5 136.0 39.0 30.1 22.5 15.5 104.2 113.0 145.5 158.9 213.6 218.6 263.4 783.2 222.6 158.9 110.1 71.1 16.6 16.4 19.5 18.6 22.7 21.3 24.4 72.7 19.0 12.3 7.5 4.3 8.8 5.9 3.1 0.0 55.2 3288

40 61.0 11.2 12.4 17.0 18.4 26.1 27.3 36.5 132.4 38.0 29.3 21.7 14.9 100.7 109.3 139.5 151.1 205.5 216.6 273.7 840.3 242.8 174.8 122.3 81.3 18.7 17.7 21.1 20.3 25.0 23.1 27.4 82.8 21.2 14.5 9.1 5.2 12.0 9.2 7.3 3.3 0.0 55.2 3416


Page 71 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

41 59.0 10.9 12.0 16.5 17.8 25.3 26.5 35.5 128.9 37.1 28.6 21.2 14.4 97.2 105.7 135.0 144.8 195.4 208.4 271.1 873.0 260.5 190.7 134.5 90.3 21.4 19.9 22.7 22.0 27.3 25.4 29.6 92.8 24.1 16.2 10.8 6.3 14.4 12.6 11.5 7.6 4.2 0.0 55.2 3505

42 57.0 10.5 11.6 16.0 17.3 24.6 25.7 34.5 125.4 36.1 27.9 20.6 14.0 93.7 102.0 130.5 140.2 187.4 198.2 260.9 864.8 270.6 204.6 146.8 99.3 23.8 22.7 25.5 23.7 29.5 27.7 32.5 100.3 27.0 18.4 12.0 7.5 17.6 15.1 15.7 11.9 9.9 4.3 0.0 55.2 3543

43 55.0 10.1 11.2 15.4 16.7 23.8 25.0 33.5 121.8 35.1 27.1 20.1 13.7 91.4 98.4 126.0 135.5 181.3 190.0 248.1 832.2 268.1 212.5 157.5 108.4 26.1 25.2 29.2 26.7 31.8 30.0 35.5 110.4 29.2 20.7 13.7 8.4 20.8 18.5 18.8 16.3 15.5 10.0 5.4 0.0 55.2 3550

44 53.0 9.8 10.8 14.9 16.2 23.0 24.2 32.5 118.3 34.1 26.4 19.6 13.3 89.1 96.0 121.5 130.8 175.3 183.9 237.9 791.4 258.0 210.5 163.6 116.3 28.5 27.7 32.4 30.5 35.8 32.3 38.4 120.4 32.1 22.4 15.3 9.5 23.2 21.9 23.0 19.5 21.2 15.8 12.6 17.4 0.0 55.2 3552

45 51.0 9.4 10.4 14.4 15.6 22.3 23.4 31.5 114.8 33.1 25.6 19.0 13.0 86.8 93.5 118.5 126.2 169.2 177.8 230.2 758.7 245.3 202.6 162.1 120.8 30.6 30.3 35.7 33.9 40.9 36.3 41.4 130.4 35.1 24.6 16.6 10.7 26.4 24.4 27.2 23.9 25.4 21.5 19.8 40.7 5.3 0.0 55.2 3560

46 49.0 9.0 10.1 13.9 15.1 21.5 22.7 30.5 111.2 32.1 24.9 18.5 12.6 84.5 91.1 115.5 123.0 163.2 171.6 222.5 734.3 235.2 192.7 155.9 119.7 31.8 32.5 38.9 37.3 45.4 41.5 46.6 140.4 38.0 26.8 18.2 11.5 29.6 27.7 30.3 28.2 31.1 25.8 27.0 63.9 12.5 4.2 0.0 55.2 3576

47 47.0 8.7 9.7 13.3 14.6 20.8 21.9 29.5 107.7 31.1 24.1 18.0 12.3 82.2 88.7 112.5 119.9 159.2 165.5 214.8 709.8 227.6 184.7 148.3 115.1 31.5 33.7 41.8 40.7 50.0 46.1 53.2 158.0 40.9 29.1 19.9 12.7 32.0 31.1 34.5 31.5 36.7 31.5 32.4 87.1 19.6 9.8 3.2 0.0 55.2 3602

48 45.0 8.3 9.3 12.8 14.0 20.0 21.1 28.5 104.2 30.1 23.4 17.4 11.9 79.9 86.2 109.5 116.8 155.1 161.4 207.2 685.3 220.0 178.7 142.2 109.5 30.3 33.4 43.4 43.6 54.5 50.8 59.1 180.6 46.0 31.3 21.6 13.8 35.2 33.6 38.7 35.8 41.0 37.3 39.6 104.6 26.7 15.3 7.5 2.3 55.2 3634

49 43.0 7.9 8.9 12.3 13.5 19.3 20.4 27.5 100.7 29.1 22.7 16.9 11.5 77.5 83.8 106.5 113.7 151.1 157.3 202.1 660.8 212.4 172.8 137.6 105.0 28.8 32.1 43.0 45.3 58.5 55.4 65.1 200.6 52.6 35.2 23.2 15.0 38.4 37.0 41.8 40.2 46.6 41.6 46.8 127.8 32.1 20.9 11.7 5.5 55.2 3671

50 41.0 7.6 8.5 11.8 12.9 18.5 19.6 26.5 97.1 28.2 21.9 16.4 11.2 75.2 81.4 103.5 110.6 147.1 153.2 196.9 644.5 204.9 166.8 133.0 101.6 27.6 30.6 41.4 44.9 60.8 59.4 71.0 220.7 58.4 40.2 26.1 16.1 41.6 40.3 46.0 43.4 52.3 47.3 52.2 151.0 39.2 25.1 16.0 8.6 55.2 3714

51 39.0 7.2 8.1 11.3 12.4 17.8 18.8 25.5 93.6 27.2 21.2 15.8 10.8 72.9 78.9 100.5 107.5 143.0 149.2 191.8 628.2 199.8 160.9 128.4 98.2 26.7 29.3 39.3 43.2 60.2 61.7 76.1 240.8 64.3 44.7 29.8 18.2 44.8 43.7 50.2 47.8 56.5 53.0 59.4 168.4 46.3 30.6 19.2 11.7 55.2 3750

52 37.0 6.8 7.7 10.7 11.8 17.0 18.1 24.5 90.1 26.2 20.4 15.3 10.5 70.6 76.5 97.5 104.4 139.0 145.1 186.7 611.9 194.7 156.9 123.8 94.8 25.8 28.4 37.7 41.1 57.9 61.1 79.1 258.3 70.1 49.2 33.2 20.7 50.4 47.1 54.3 52.1 62.2 57.3 66.7 191.7 51.6 36.2 23.4 14.0 55.2 3786

53 35.0 6.4 7.3 10.2 11.3 16.2 17.3 23.5 86.5 25.2 19.7 14.7 10.1 68.3 74.1 94.5 101.2 135.0 141.0 181.6 595.6 189.7 152.9 120.8 91.4 25.0 27.4 36.5 39.4 55.1 58.8 78.4 268.4 75.2 53.6 36.5 23.0 57.6 53.0 58.5 56.5 67.8 63.1 72.1 214.9 58.8 40.4 27.7 17.1 55.2 3814

54 33.0 6.1 6.9 9.7 10.7 15.5 16.5 22.5 83.0 24.2 18.9 14.2 9.8 66.0 71.7 91.5 98.1 131.0 136.9 176.5 579.3 184.6 149.0 117.7 89.2 24.1 26.5 35.3 38.1 52.8 56.0 75.4 265.8 78.1 57.6 39.8 25.4 64.0 60.5 65.8 60.8 73.5 68.8 79.3 232.3 65.9 46.0 30.9 20.3 55.2 3827

55 31.0 5.7 6.5 9.2 10.2 14.7 15.8 21.5 79.5 23.2 18.2 13.7 9.4 63.7 69.2 88.5 95.0 126.9 132.8 171.4 562.9 179.6 145.0 114.7 86.9 23.5 25.5 34.1 36.8 51.1 53.6 71.7 255.8 77.4 59.8 42.7 27.7 70.4 67.2 75.2 68.4 79.1 74.5 86.5 255.6 71.2 51.5 35.2 22.6 55.2 3836

56 29.0 5.3 6.1 8.6 9.6 14.0 15.0 20.5 75.9 22.2 17.5 13.1 9.1 61.3 66.8 85.5 91.9 122.9 128.7 166.2 546.6 174.5 141.0 111.6 84.7 22.9 24.9 32.8 35.6 49.4 51.9 68.8 243.3 74.5 59.2 44.3 29.7 76.8 74.0 83.6 78.2 89.0 80.3 93.7 278.8 78.4 55.7 39.4 25.7 55.2 3845

57 26.5 4.9 5.7 8.1 9.1 13.2 14.2 19.5 72.4 21.2 16.7 12.6 8.7 59.0 64.4 82.5 88.8 118.9 124.6 161.1 530.3 169.4 137.0 108.6 82.4 22.3 24.3 32.0 34.3 47.7 50.2 66.5 233.2 70.8 57.0 43.9 30.8 82.4 80.7 92.0 86.9 101.7 90.3 100.9 302.0 85.5 61.3 42.6 28.8 55.2 3857

58 24.5 4.5 5.2 7.6 8.5 12.5 13.5 18.5 68.9 20.3 16.0 12.1 8.4 56.7 61.9 79.5 85.7 114.8 120.6 156.0 514.0 164.4 133.1 105.5 80.1 21.7 23.6 31.2 33.5 46.0 48.5 64.3 225.7 67.9 54.2 42.3 30.5 85.6 86.6 100.3 95.6 113.0 103.2 113.5 325.3 92.6 66.8 46.9 31.2 55.2 3873

59 22.5 4.1 4.8 6.9 8.0 11.7 12.7 17.5 65.3 19.3 15.2 11.5 8.0 54.4 59.5 76.5 82.5 110.8 116.5 150.9 497.7 159.3 129.1 102.4 77.9 21.1 23.0 30.4 32.6 44.9 46.7 62.1 218.2 65.7 52.0 40.2 29.4 84.8 89.9 107.6 104.2 124.3 114.7 129.7 365.9 99.7 72.4 51.1 34.3 55.2 3903

60 20.5 3.8 4.4 6.4 7.3 11.0 11.9 16.5 61.8 18.3 14.5 11.0 7.6 52.1 57.1 73.5 79.4 106.8 112.4 145.8 481.4 154.3 125.1 99.4 75.6 20.5 22.4 29.6 31.8 43.7 45.6 59.9 210.7 63.5 50.3 38.5 27.9 81.6 89.1 111.8 111.8 135.6 126.1 144.1 418.2 112.2 78.0 55.4 37.4 55.2 3938

61 18.5 3.4 4.0 5.9 6.7 10.0 11.1 15.5 58.3 17.3 13.7 10.5 7.3 49.8 54.7 70.5 76.3 102.8 108.3 140.7 465.0 149.2 121.2 96.3 73.4 19.9 21.7 28.8 30.9 42.6 44.4 58.4 203.1 61.3 48.6 37.3 26.8 77.6 85.7 110.8 116.2 145.5 137.6 158.5 464.7 128.2 87.7 59.7 40.5 55.2 3963

62 16.5 3.0 3.6 5.4 6.2 9.3 10.2 14.5 54.7 16.3 13.0 9.9 6.9 47.5 52.2 67.5 73.2 98.7 104.2 135.6 448.7 144.2 117.2 93.3 71.1 19.3 21.1 28.0 30.1 41.5 43.3 56.9 198.1 59.2 46.9 36.1 25.9 74.4 81.5 106.6 115.1 151.2 147.6 172.9 511.1 142.5 100.3 67.1 43.6 55.2 3982

63 14.5 2.7 3.3 4.8 5.6 8.5 9.4 13.3 51.2 15.3 12.3 9.4 6.6 45.1 49.8 64.5 70.1 94.7 100.1 130.4 432.4 139.1 113.2 90.2 68.9 18.7 20.5 27.2 29.2 40.3 42.1 55.4 193.1 57.7 45.3 34.8 25.1 72.0 78.2 101.4 110.8 149.8 153.4 185.5 557.6 156.7 111.4 76.7 49.1 55.2 3988

64 12.5 2.3 2.9 4.3 5.1 7.7 8.6 12.3 46.8 14.3 11.5 8.8 6.2 42.8 47.4 61.5 67.0 90.7 96.0 125.3 416.1 134.0 109.2 87.1 66.6 18.1 19.9 26.4 28.4 39.2 41.0 54.0 188.1 56.2 44.1 33.6 24.2 69.6 75.6 97.2 105.3 144.1 151.9 192.7 598.3 171.0 122.5 85.2 56.1 55.2 3972

65 10.5 1.9 2.5 3.8 4.5 7.0 7.9 11.3 43.3 13.1 10.8 8.3 5.9 40.5 44.9 58.5 63.9 86.6 91.9 120.2 399.8 129.0 105.3 84.1 64.3 17.5 19.2 25.5 27.5 38.0 39.8 52.5 183.1 54.8 43.0 32.7 23.3 67.2 73.1 94.0 101.0 137.1 146.2 190.9 621.5 183.4 133.7 93.8 62.3 55.2 3926

66 8.5 1.6 2.1 3.3 4.0 6.2 7.1 10.3 39.7 12.1 9.8 7.8 5.5 38.2 42.5 55.5 60.7 82.6 87.9 115.1 383.5 123.9 101.3 81.0 62.1 16.9 18.6 24.7 26.7 36.9 38.7 51.0 178.1 53.3 41.9 31.9 22.8 64.8 70.6 90.9 97.7 131.4 139.0 183.7 615.7 190.6 143.4 102.3 68.6 55.2 3839

67 6.5 1.2 1.7 2.8 3.4 5.5 6.3 9.3 36.2 11.1 9.1 7.1 5.2 35.9 40.1 52.5 57.6 78.6 83.8 110.0 367.1 118.9 97.3 78.0 59.8 16.3 18.0 23.9 25.8 35.8 37.5 49.5 173.1 51.8 40.8 31.1 22.2 63.2 68.1 87.8 94.5 127.2 133.3 174.7 592.5 188.8 149.0 109.7 74.8 55.2 3723

68 5.5 1.0 1.3 2.2 2.9 4.7 5.6 8.3 32.7 10.1 8.4 6.6 4.7 33.6 37.7 49.5 54.5 74.5 79.7 104.9 350.8 113.8 93.3 74.9 57.6 15.7 17.3 23.1 25.0 34.6 36.3 48.1 168.0 50.4 39.7 30.3 21.6 61.6 66.4 84.6 91.2 122.9 129.0 167.5 563.4 181.7 147.6 114.0 80.3 55.2 3588

69 4.5 0.8 1.1 1.7 2.3 4.0 4.8 7.3 29.1 9.1 7.6 6.0 4.4 30.7 35.2 46.5 51.4 70.5 75.6 99.8 334.5 108.8 89.4 71.9 55.3 15.2 16.7 22.3 24.1 33.5 35.2 46.6 163.0 48.9 38.6 29.4 21.0 60.0 64.7 82.5 88.0 118.7 124.7 162.1 540.2 172.7 142.0 112.9 83.4 55.2 3449

70 4.0 0.7 0.9 1.4 1.8 3.2 4.0 6.3 25.6 8.2 6.9 5.5 4.0 28.4 32.2 43.5 48.3 66.5 71.5 94.6 318.2 103.7 85.4 68.8 53.1 14.6 16.1 21.5 23.3 32.4 34.0 45.1 158.0 47.5 37.4 28.6 20.5 58.4 63.0 80.5 85.8 114.4 120.4 156.7 522.8 165.6 135.1 108.7 82.6 55.2 3310

71 3.5 0.6 0.8 1.2 1.5 2.5 3.3 5.3 22.1 7.2 6.1 5.0 3.6 26.0 29.8 39.8 45.2 62.5 67.4 89.5 301.9 98.6 81.4 65.7 50.8 14.0 15.4 20.7 22.4 31.2 32.9 43.6 153.0 46.0 36.3 27.8 19.9 56.8 61.4 78.4 83.6 111.6 116.1 151.3 505.3 160.3 129.5 103.3 79.5 55.2 3173

72 3.0 0.6 0.7 1.1 1.2 2.1 2.5 4.3 18.5 6.2 5.4 4.4 3.3 23.7 27.3 36.8 41.3 58.4 63.3 84.4 285.6 93.6 77.5 62.7 48.5 13.4 14.8 19.9 21.6 30.1 31.7 42.1 148.0 44.5 35.2 26.9 19.3 55.2 59.7 76.3 81.4 108.8 113.2 145.9 487.9 154.9 125.3 99.1 75.6 55.2 3039

73 2.5 0.5 0.6 0.9 1.1 1.7 2.1 3.3 15.0 5.2 4.6 3.9 2.9 21.4 24.9 33.8 38.2 53.4 59.3 79.3 269.2 88.5 73.5 59.6 46.3 12.8 14.2 19.1 20.8 29.0 30.6 40.7 143.0 43.1 34.1 26.1 18.7 53.6 58.0 74.2 79.3 106.0 110.4 142.3 470.5 149.6 121.1 95.9 72.5 55.2 2909

74 2.0 0.4 0.5 0.8 1.0 1.5 1.7 2.8 11.5 4.2 3.9 3.4 2.6 19.1 22.5 30.8 35.0 49.4 54.1 74.2 252.9 83.5 69.5 56.6 44.0 12.2 13.6 18.2 19.9 27.8 29.4 39.2 137.9 41.6 33.0 25.3 18.2 52.0 56.3 72.1 77.1 103.1 107.5 138.7 458.9 144.3 117.0 92.7 70.1 55.2 2787

75 1.5 0.3 0.4 0.7 0.8 1.3 1.5 2.3 9.7 3.2 3.2 2.8 2.2 16.8 20.0 27.8 31.9 45.3 50.1 67.8 236.6 78.4 65.5 53.5 41.8 11.6 12.9 17.4 19.1 26.7 28.3 37.7 132.9 40.2 31.9 24.5 17.6 50.4 54.6 70.0 74.9 100.3 104.6 135.1 447.2 140.7 112.8 89.5 67.8 55.2 2668

76 1.0 0.2 0.3 0.5 0.7 1.1 1.3 2.0 8.0 2.7 2.4 2.3 1.9 14.5 17.6 24.8 28.8 41.3 46.0 62.7 216.2 73.3 61.6 50.5 39.5 11.0 12.3 16.6 18.2 25.6 27.1 36.2 127.9 38.7 30.7 23.6 17.0 48.8 53.0 67.9 72.8 97.5 101.8 131.5 435.6 137.1 110.0 86.3 65.4 55.2 2548

77 0.5 0.1 0.2 0.4 0.6 0.9 1.2 1.8 7.1 2.2 2.0 1.7 1.5 12.2 15.2 21.8 25.7 37.3 41.9 57.6 199.9 67.0 57.6 47.4 37.3 10.4 11.7 15.8 17.4 24.4 26.0 34.7 122.9 37.2 29.6 22.8 16.4 47.2 51.3 65.8 70.6 94.7 98.9 127.9 424.0 133.6 107.2 84.2 63.1 55.2 2433

78 0.0 0.0 0.1 0.3 0.4 0.8 1.0 1.5 6.2 2.0 1.7 1.5 1.2 9.8 12.8 18.8 22.6 33.2 37.8 52.4 183.6 62.0 52.6 44.3 35.0 9.8 11.0 15.0 16.5 23.3 24.8 33.3 117.9 35.8 28.5 22.0 15.8 45.6 49.6 63.7 68.4 91.8 96.0 124.3 412.4 130.0 104.4 82.0 61.6 55.2 2320

79 0.0 0.0 0.0 0.1 0.3 0.6 0.8 1.3 5.3 1.7 1.5 1.2 1.0 7.5 10.3 15.8 19.5 29.2 33.7 47.3 167.3 56.9 48.7 40.5 32.7 9.2 10.4 14.2 15.7 22.1 23.7 31.8 112.9 34.3 27.4 21.1 15.3 44.0 47.9 61.7 66.2 89.0 93.2 120.7 400.8 126.4 101.7 79.9 60.0 55.2 2208

80 0.0 0.0 0.0 0.0 0.1 0.4 0.6 1.0 4.4 1.5 1.3 1.1 0.8 6.4 7.9 12.8 16.4 25.2 29.6 42.2 150.9 51.8 44.7 37.5 29.9 8.6 9.8 13.4 14.8 21.0 22.5 30.3 107.8 32.9 26.3 20.3 14.7 42.4 46.2 59.6 64.1 86.2 90.3 117.1 389.2 122.9 98.9 77.8 58.4 55.2 2097

81 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.8 3.5 1.2 1.1 0.9 0.7 5.2 6.7 9.8 13.2 21.2 25.5 37.1 134.6 46.8 40.7 34.4 27.7 7.9 9.1 12.6 14.0 19.9 21.3 28.8 102.8 31.4 25.1 19.5 14.1 40.8 44.5 57.5 61.9 83.4 87.4 113.5 377.5 119.3 96.1 75.6 56.9 55.2 1988

82 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.5 2.7 1.0 0.9 0.8 0.6 4.6 5.5 8.3 10.1 17.1 21.5 32.0 118.3 41.7 36.7 31.3 25.4 7.3 8.4 11.8 13.1 18.7 20.2 27.4 97.8 29.9 24.0 18.7 13.5 39.2 42.9 55.4 59.7 80.5 84.6 109.9 365.9 115.8 93.3 73.5 55.3 55.2 1881

83 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.8 0.7 0.7 0.7 0.5 4.1 4.9 6.8 8.6 13.1 17.4 26.9 102.0 36.7 32.8 28.3 23.1 6.7 7.7 10.7 12.3 17.6 19.0 25.9 92.8 28.5 22.9 17.8 13.0 37.6 41.2 53.3 57.5 77.7 81.7 106.3 354.3 112.2 90.5 71.4 53.8 55.2 1777

84 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 0.5 0.6 0.5 0.4 3.5 4.3 6.0 7.0 11.1 13.3 21.7 85.7 31.6 28.8 25.2 20.9 6.1 7.1 9.9 11.2 16.5 17.9 24.4 87.8 27.0 21.8 17.0 12.4 36.0 39.5 51.2 55.4 74.9 78.8 102.7 342.7 108.6 87.7 69.3 52.2 55.2 1675


Page 72 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

85 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.4 0.4 0.4 2.9 3.6 5.3 6.2 9.1 11.2 16.6 69.4 26.6 24.8 22.2 18.6 5.5 6.5 9.1 10.4 15.1 16.7 22.9 82.8 25.6 20.7 16.2 11.8 34.4 37.8 49.1 53.2 72.1 76.0 99.1 331.1 105.1 84.9 67.1 50.6 55.2 1577

86 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.3 2.3 3.0 4.5 5.5 8.1 9.2 14.1 53.0 21.5 20.9 19.1 16.4 4.9 5.8 8.3 9.5 13.9 15.3 21.4 77.8 24.1 19.6 15.3 11.2 32.8 36.1 47.0 51.0 69.2 73.1 95.5 319.5 101.5 82.2 65.0 49.1 55.2 1482

87 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 1.7 2.4 3.8 4.7 7.1 8.2 11.5 44.9 16.4 16.9 16.1 14.1 4.3 5.2 7.5 8.7 12.8 14.1 19.6 72.7 22.6 18.4 14.5 10.7 31.2 34.5 44.9 48.9 66.4 70.2 91.9 307.8 98.0 79.4 62.9 47.5 55.2 1398

88 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.2 1.8 3.0 3.9 6.0 7.2 10.2 36.7 13.9 12.9 13.0 11.9 3.7 4.6 6.7 7.8 11.6 13.0 18.1 66.5 21.2 17.3 13.7 10.1 29.6 32.8 42.8 46.7 63.6 67.4 88.3 296.2 94.4 76.6 60.7 46.0 55.2 1316

89 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.2 2.3 3.1 5.0 6.1 9.0 32.6 11.4 10.9 9.9 9.6 3.1 3.9 5.9 7.0 10.5 11.8 16.6 61.4 19.4 16.2 12.9 9.5 28.0 31.1 40.8 44.5 60.8 64.5 84.7 284.6 90.8 73.8 58.6 44.4 55.2 1242

90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.5 2.3 4.0 5.1 7.7 28.6 10.1 8.9 8.4 7.3 2.5 3.3 5.1 6.1 9.4 10.7 15.2 56.4 17.9 14.8 12.0 8.9 26.4 29.4 38.7 42.3 57.9 61.6 81.1 273.0 87.3 71.0 56.5 42.9 55.2 1170

91 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.6 3.0 4.1 6.4 24.5 8.9 7.9 6.9 6.2 1.9 2.7 4.3 5.3 8.2 9.5 13.7 51.4 16.4 13.7 11.0 8.4 24.8 27.7 36.6 40.2 55.1 58.8 77.5 261.4 83.7 68.2 54.3 41.3 55.2 1101

92 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.0 3.1 5.1 20.4 7.6 7.0 6.1 5.1 1.6 2.1 3.5 4.5 7.1 8.4 12.2 46.4 15.0 12.6 10.2 7.6 23.2 26.1 34.5 38.0 52.3 55.9 73.9 249.8 80.1 65.4 52.2 39.7 55.2 1034

93 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.0 3.8 16.3 6.3 6.0 5.4 4.5 1.3 1.7 2.6 3.6 6.0 7.2 10.7 41.4 13.5 11.5 9.3 7.1 21.2 24.4 32.4 35.8 49.5 53.0 70.3 238.1 76.6 62.7 50.1 38.2 55.2 969

94 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.6 12.2 5.1 5.0 4.6 4.0 1.2 1.4 2.2 2.8 4.8 6.1 9.2 36.4 12.1 10.3 8.5 6.5 19.6 22.3 30.3 33.7 46.6 50.2 66.7 226.5 73.0 59.9 47.9 36.6 55.2 904

95 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 8.2 3.8 4.0 3.8 3.4 1.0 1.3 1.8 2.3 3.7 4.9 7.8 31.4 10.6 9.2 7.7 5.9 18.0 20.6 27.7 31.5 43.8 47.3 63.1 214.9 69.5 57.1 45.8 35.1 55.2 841

96 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.1 2.5 3.0 3.1 2.8 0.9 1.1 1.6 1.9 3.1 3.8 6.3 26.3 9.1 8.1 6.8 5.3 16.4 18.9 25.6 28.8 41.0 44.4 59.4 203.3 65.9 54.3 43.7 33.5 55.2 780

97 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 2.0 2.3 2.3 0.7 1.0 1.4 1.7 2.6 3.2 4.8 21.3 7.7 7.0 6.0 4.8 14.8 17.2 23.5 26.6 37.4 41.6 55.8 191.7 62.3 51.5 41.6 31.9 55.2 721

98 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.5 1.7 0.6 0.8 1.2 1.5 2.3 2.6 4.1 16.3 6.2 5.9 5.2 4.2 13.2 15.6 21.4 24.4 34.6 38.0 52.2 180.1 58.8 48.7 39.4 30.4 55.2 667

99 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.1 0.5 0.6 1.0 1.3 2.0 2.3 3.3 13.8 4.8 4.8 4.4 3.6 11.6 13.9 19.3 22.3 31.8 35.1 47.7 168.4 55.2 46.0 37.3 28.8 55.2 617

100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 0.3 0.5 0.8 1.1 1.7 2.0 3.0 11.3 4.0 3.6 3.5 3.0 10.0 12.2 17.2 20.1 29.0 32.3 44.1 153.9 51.6 43.2 35.2 27.3 55.2 567

101 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.6 0.9 1.4 1.7 2.6 10.0 3.3 3.1 2.7 2.5 8.4 10.5 15.2 17.9 26.1 29.4 40.5 142.3 47.2 40.4 33.0 25.7 55.2 521

102 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.6 1.1 1.4 2.2 8.8 2.9 2.5 2.3 1.9 6.8 8.8 13.1 15.7 23.3 26.5 36.9 130.7 43.6 36.9 30.9 24.2 55.2 477

103 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.9 1.2 1.9 7.5 2.6 2.2 1.9 1.6 5.2 7.1 11.0 13.6 20.5 23.7 33.3 119.1 40.1 34.1 28.2 22.6 55.2 434

104 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.6 0.9 1.5 6.3 2.2 2.0 1.7 1.3 4.4 5.5 8.9 11.4 17.7 20.8 29.7 107.5 36.5 31.3 26.1 20.7 55.2 392

105 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.6 1.1 5.0 1.8 1.7 1.5 1.2 3.6 4.6 6.8 9.2 14.8 17.9 26.1 95.8 33.0 28.5 24.0 19.1 55.2 352

106 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.7 3.8 1.5 1.4 1.2 1.0 3.2 3.8 5.8 7.1 12.0 15.1 22.5 84.2 29.4 25.8 21.8 17.5 55.2 313

107 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.5 1.1 1.1 1.0 0.9 2.8 3.4 4.7 6.0 9.2 12.2 18.9 72.6 25.8 23.0 19.7 16.0 55.2 276

108 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 0.7 0.8 0.8 0.7 2.4 2.9 4.2 4.9 7.8 9.3 15.3 61.0 22.3 20.2 17.6 14.4 55.2 242

109 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.6 0.6 0.6 2.0 2.5 3.7 4.3 6.4 7.9 11.7 49.4 18.7 17.4 15.5 12.9 55.2 210

110 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.4 0.4 1.6 2.1 3.1 3.8 5.7 6.5 9.9 37.8 15.1 14.6 13.3 11.3 55.2 181

111 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 1.2 1.7 2.6 3.3 4.9 5.7 8.1 32.0 11.6 11.8 11.2 9.7 55.2 159

112 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.8 1.3 2.1 2.7 4.2 5.0 7.2 26.1 9.8 9.1 9.1 8.2 55.2 141

113 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 1.6 2.2 3.5 4.3 6.3 23.2 8.0 7.7 6.9 6.6 55.2 127

114 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.0 1.6 2.8 3.6 5.4 20.3 7.1 6.3 5.9 5.1 55.2 115

115 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.1 2.1 2.9 4.5 17.4 6.2 5.6 4.8 4.3 55.2 105

116 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.4 2.2 3.6 14.5 5.3 4.9 4.3 3.5 55.2 95

117 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.4 2.7 11.6 4.5 4.2 3.7 3.1 55.2 87

118 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.8 8.7 3.6 3.5 3.2 2.7 55.2 79

119 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 5.8 2.7 2.8 2.7 2.3 55.2 72

120 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.9 1.8 2.1 2.1 2.0 55.2 66

121 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 1.4 1.6 1.6 55.2 61

122 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.1 1.2 55.2 58

123 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.8 55.2 56

124 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 55.2 56

125 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 55.2 55


Page 73 of 100


Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

0.18 0.19 0.26 0.27 0.37 0.38 0.49 1.74 0.49 0.37 0.26 0.17 1.15 1.21 1.49 1.55 2.00 2.03 2.54 8.11 2.52 1.97 1.52 1.12 0.29 0.31 0.40 0.42 0.56 0.57 0.73 2.49 0.73 0.56 0.41 0.29 0.79 0.83 1.03 1.07 1.40 1.42 1.78 5.74 1.76 1.38 1.05 0.77 0 0.0 0.0 65.3 65

1 2.0 0.4 0.0 65.3 66

2 5.0 0.9 0.4 0.0 65.3 67

3 9.0 1.6 1.0 0.5 0.0 65.3 68

4 13.0 2.4 1.7 1.3 0.5 0.0 65.3 71

5 17.0 3.1 2.5 2.3 1.4 0.7 0.0 65.3 75

6 21.0 3.8 3.3 3.4 2.4 1.9 0.8 0.0 65.3 81

7 25.0 4.5 4.1 4.4 3.5 3.4 1.9 1.0 0.0 65.3 88

8 30.0 5.4 4.8 5.4 4.6 4.8 3.4 2.5 3.5 0.0 65.3 100

9 34.0 6.2 5.8 6.4 5.7 6.3 4.9 4.4 8.7 1.0 0.0 65.3 115

10 39.0 7.1 6.6 7.7 6.8 7.8 6.4 6.4 15.7 2.4 0.7 0.0 65.3 133

11 44.0 8.0 7.6 8.8 8.1 9.3 8.0 8.4 22.7 4.4 1.8 0.5 0.0 65.3 153

12 49.0 8.9 8.5 10.0 9.2 11.2 9.5 10.4 29.7 6.3 3.3 1.3 0.4 0.0 65.3 174

13 55.0 10.0 9.5 11.3 10.5 12.7 11.4 12.3 36.6 8.3 4.8 2.4 0.9 2.3 0.0 65.3 198

14 61.0 11.0 10.7 12.6 11.9 14.5 12.9 14.8 43.6 10.2 6.2 3.4 1.6 5.8 2.4 0.0 65.3 227

15 70.0 12.7 11.8 14.2 13.2 16.4 14.8 16.8 52.4 12.2 7.7 4.5 2.3 10.4 6.0 3.0 0.0 65.3 264

16 78.0 14.1 13.6 15.7 14.9 18.3 16.7 19.3 59.3 14.6 9.2 5.5 3.0 15.0 10.9 7.5 3.1 0.0 65.3 306

17 88.0 15.9 15.1 18.0 16.5 20.5 18.6 21.7 68.1 16.6 11.0 6.6 3.7 19.6 15.7 13.4 7.7 4.0 0.0 65.3 358

18 96.0 17.4 17.0 20.1 18.9 22.7 20.8 24.2 76.8 19.0 12.5 7.9 4.4 24.2 20.5 19.4 13.9 10.0 4.1 0.0 65.3 419

19 106.5 19.3 18.6 22.7 21.1 26.1 23.1 27.2 85.5 21.4 14.3 9.0 5.2 28.8 25.4 25.4 20.1 18.0 10.2 5.1 0.0 65.3 492

20 114.0 20.6 20.6 24.7 23.8 29.1 26.5 30.1 96.0 23.9 16.1 10.3 5.9 34.5 30.2 31.3 26.3 26.0 18.3 12.7 16.2 0.0 65.3 589

21 122.0 22.1 22.1 27.4 26.0 32.8 29.6 34.6 106.4 26.8 17.9 11.6 6.8 39.1 36.2 37.3 32.5 34.1 26.4 22.9 40.6 5.0 0.0 65.3 703

22 127.0 23.0 23.6 29.4 28.8 35.8 33.3 38.5 122.2 29.7 20.1 12.9 7.7 44.9 41.1 44.8 38.7 42.1 34.5 33.1 73.0 12.6 4.0 0.0 65.3 839

23 126.0 22.8 24.6 31.4 30.8 39.7 36.4 43.5 136.1 34.1 22.3 14.5 8.6 50.6 47.1 50.7 46.5 50.1 42.7 43.2 105.5 22.6 9.9 3.0 0.0 65.3 982

24 121.0 21.9 24.4 32.7 33.0 42.5 40.3 47.4 153.6 38.0 25.6 16.1 9.6 56.4 53.1 58.2 52.7 60.1 50.8 53.4 138.0 32.7 17.8 7.6 2.2 0.0 65.3 1133

25 116.0 21.0 23.4 32.5 34.3 45.4 43.2 52.6 167.5 42.9 28.6 18.5 10.7 63.3 59.2 65.6 60.4 68.1 61.0 63.6 170.4 42.8 25.7 13.7 5.6 0.6 0.0 65.3 1286

26 110.0 19.9 22.5 31.2 34.1 47.3 46.2 56.3 185.8 46.8 32.2 20.6 12.2 70.2 66.4 73.1 68.1 78.1 69.1 76.3 202.9 52.8 33.6 19.8 10.1 1.5 0.6 0.0 65.3 1443

27 106.0 19.2 21.3 29.9 32.7 46.9 48.1 60.2 198.9 51.9 35.1 23.2 13.6 80.6 73.7 82.1 75.9 88.2 79.2 86.5 243.4 62.9 41.5 25.8 14.6 2.7 1.6 0.8 0.0 65.3 1606

28 102.0 18.5 20.5 28.3 31.4 45.1 47.7 62.7 212.9 55.6 39.0 25.3 15.4 89.8 84.5 91.0 85.2 98.2 89.4 99.2 275.9 75.5 49.4 31.9 19.1 3.8 2.8 2.0 0.8 0.0 65.3 1766

29 98.0 17.7 19.8 27.3 29.7 43.2 45.8 62.2 221.6 59.5 41.7 28.1 16.8 101.3 94.2 104.4 94.5 110.2 99.6 111.9 316.5 85.5 59.3 38.0 23.6 5.0 4.1 3.6 2.1 1.1 0.0 65.3 1933

30 95.0 17.2 19.0 26.3 28.7 41.0 43.9 59.7 219.9 61.9 44.7 30.1 18.6 110.5 106.3 116.4 108.4 122.2 111.8 124.6 357.0 98.1 67.2 45.6 28.1 6.2 5.3 5.2 3.8 2.8 1.2 0.0 65.3 2097

31 92.0 16.6 18.4 25.2 27.6 39.5 41.7 57.3 211.1 61.4 46.5 32.2 19.9 122.5 115.9 131.3 120.8 140.2 123.9 139.9 397.6 110.7 77.0 51.7 33.7 7.4 6.6 6.9 5.5 5.1 2.9 1.5 0.0 65.3 2264

32 89.0 16.1 17.8 24.5 26.5 38.0 40.2 54.3 202.4 59.0 46.1 33.5 21.3 131.2 128.6 143.2 136.3 156.3 142.2 155.2 446.3 123.2 86.9 59.3 38.2 8.9 7.8 8.5 7.2 7.3 5.2 3.7 5.0 0.0 65.3 2445

33 86.0 15.6 17.2 23.7 25.7 36.5 38.6 52.3 192.0 56.5 44.3 33.3 22.2 140.4 137.7 158.9 148.7 176.3 158.5 178.0 495.0 138.3 96.8 66.9 43.8 10.0 9.4 10.1 8.8 9.6 7.5 6.6 12.5 1.5 0.0 65.3 2638

34 83.0 15.0 16.7 22.9 24.9 35.4 37.1 50.4 185.0 53.6 42.5 31.9 22.0 146.1 147.3 170.1 164.9 192.3 178.8 198.4 568.0 153.4 108.6 74.5 49.4 11.5 10.6 12.1 10.5 11.9 9.7 9.6 22.5 3.6 1.1 0.0 65.3 2858

35 80.0 14.5 16.1 22.2 24.1 34.3 36.0 48.4 178.0 51.7 40.3 30.6 21.1 145.0 153.4 182.0 176.5 213.4 195.1 223.8 632.9 176.1 120.5 83.6 55.0 13.0 12.2 13.7 12.6 14.1 12.0 12.5 32.4 6.5 2.8 0.8 0.0 65.3 3072

36 77.5 14.0 15.5 21.4 23.2 33.2 34.9 46.9 171.0 49.7 38.8 29.0 20.2 139.2 152.2 189.5 188.9 228.4 216.4 244.2 714.1 196.2 138.3 92.7 61.7 14.5 13.8 15.7 14.3 16.9 14.3 15.4 42.4 9.4 5.0 2.1 0.6 0.0 65.3 3289

37 75.0 13.6 15.0 20.6 22.4 32.0 33.7 45.4 165.8 47.8 37.3 28.0 19.2 133.5 146.1 188.0 196.7 244.4 231.6 270.9 779.0 221.3 154.1 106.4 68.5 16.2 15.3 17.7 16.4 19.2 17.2 18.4 52.4 12.3 7.2 3.7 1.4 1.6 0.0 65.3 3486


Page 74 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

38 73.0 13.2 14.5 20.0 21.6 30.9 32.6 43.9 160.5 46.3 35.9 26.9 18.5 126.6 140.1 180.5 195.1 254.4 247.9 290.0 864.2 241.4 173.8 118.6 78.6 18.0 17.2 19.7 18.5 22.0 19.5 22.0 62.4 15.2 9.4 5.4 2.6 4.0 1.7 0.0 65.3 3679

39 71.0 12.8 14.1 19.3 21.0 29.8 31.4 42.5 155.3 44.8 34.8 25.9 17.8 122.0 132.8 173.0 187.4 252.4 258.0 310.3 925.1 267.9 189.6 133.8 87.5 20.7 19.1 22.2 20.6 24.8 22.4 25.0 74.8 18.1 11.7 7.0 3.7 7.1 4.2 2.1 0.0 65.3 3838

40 69.0 12.5 13.8 18.8 20.3 28.9 30.3 41.0 150.1 43.4 33.7 25.1 17.1 117.4 128.0 164.1 179.6 242.4 256.0 323.0 990.0 286.7 210.3 145.9 98.8 23.0 21.9 24.6 23.1 27.7 25.2 28.7 84.8 21.8 13.9 8.6 4.9 10.3 7.5 5.2 2.2 0.0 65.3 3975

41 67.0 12.1 13.4 18.3 19.7 27.9 29.4 39.5 144.8 41.9 32.6 24.3 16.6 112.8 123.2 158.1 170.4 232.4 245.9 320.5 1030.6 306.8 225.1 161.9 107.7 26.0 24.4 28.2 25.7 31.0 28.1 32.3 97.3 24.7 16.7 10.3 6.0 13.4 10.8 9.3 5.4 2.8 0.0 65.3 4073

42 65.0 11.8 13.0 17.8 19.2 27.2 28.4 38.3 139.6 40.5 31.5 23.5 16.1 109.3 118.3 152.2 164.2 220.4 235.7 307.8 1022.4 319.4 240.9 173.3 119.5 28.3 27.5 31.4 29.4 34.4 31.5 36.0 109.7 28.3 18.9 12.4 7.2 16.6 14.1 13.4 9.7 7.0 2.8 0.0 65.3 4114

43 63.0 11.4 12.6 17.3 18.7 26.4 27.7 37.0 135.2 39.0 30.4 22.7 15.5 105.9 114.7 146.2 158.0 212.4 223.5 295.0 981.9 316.9 250.8 185.5 127.9 31.4 30.0 35.4 32.8 39.5 35.0 40.4 122.2 31.9 21.7 14.0 8.6 19.7 17.4 17.6 13.9 12.6 7.1 3.6 0.0 65.3 4113

44 61.0 11.0 12.2 16.7 18.1 25.7 26.9 36.0 130.9 37.8 29.3 21.9 15.0 102.4 111.1 141.7 151.8 204.3 215.4 279.8 941.3 304.3 248.8 193.1 136.9 33.6 33.3 38.7 37.0 44.0 40.1 44.8 137.2 35.6 24.4 16.1 9.7 23.7 20.8 21.7 18.2 18.2 12.8 8.9 11.5 0.0 65.3 4108

45 59.0 10.7 11.8 16.2 17.6 25.0 26.1 35.1 127.4 36.6 28.4 21.1 14.5 99.0 107.5 137.2 147.1 196.3 207.2 269.6 892.6 291.7 239.0 191.5 142.5 36.0 35.7 42.9 40.4 49.7 44.7 51.4 152.1 39.9 27.2 18.1 11.2 26.8 24.9 25.8 22.5 23.7 18.4 16.0 28.7 3.5 0.0 65.3 4097

46 57.0 10.3 11.4 15.7 17.0 24.2 25.4 34.1 123.9 35.6 27.5 20.5 14.0 95.5 103.9 132.8 142.5 190.3 199.1 259.4 860.1 276.7 229.1 183.9 141.4 37.5 38.2 45.9 44.8 54.2 50.4 57.3 174.6 44.3 30.5 20.2 12.6 30.8 28.2 31.0 26.8 29.3 24.1 23.1 51.7 8.8 2.8 0.0 65.3 4106

47 55.0 10.0 11.0 15.2 16.5 23.5 24.6 33.1 120.4 34.6 26.7 19.8 13.5 92.1 100.2 128.3 137.8 184.3 193.0 249.3 827.7 266.6 217.2 176.3 135.8 37.2 39.7 49.1 48.0 60.1 55.0 64.7 194.5 50.8 33.9 22.6 14.0 34.7 32.4 35.1 32.2 34.9 29.7 30.3 74.7 15.8 6.9 2.1 0.0 65.3 4121

48 53.0 9.6 10.7 14.7 16.0 22.7 23.9 32.1 116.9 33.6 26.0 19.3 13.1 89.2 96.6 123.8 133.2 178.3 186.9 241.6 795.2 256.5 209.3 167.2 130.2 35.7 39.4 51.1 51.3 64.3 61.1 70.5 219.5 56.6 38.9 25.1 15.7 38.7 36.5 40.3 36.5 41.9 35.4 37.4 97.6 22.9 12.4 5.3 1.5 65.3 4147

49 51.0 9.2 10.3 14.2 15.4 22.0 23.1 31.1 113.4 32.7 25.3 18.7 12.7 86.3 93.6 119.3 128.5 172.3 180.8 234.0 770.9 246.5 201.5 161.1 123.5 34.2 37.9 50.7 53.4 68.8 65.3 78.3 239.4 63.9 43.3 28.8 17.4 43.4 40.7 45.4 41.8 47.5 42.5 44.5 120.6 29.9 17.9 9.5 3.9 65.3 4181

50 49.0 8.9 9.9 13.7 14.9 21.2 22.4 30.1 109.9 31.7 24.5 18.2 12.4 84.0 90.6 115.6 123.9 166.3 174.7 226.4 746.5 238.9 193.6 155.1 119.0 32.4 36.3 48.7 53.0 71.7 69.9 83.8 265.6 69.7 48.9 32.1 20.0 48.2 45.7 50.6 47.2 54.4 48.2 53.4 143.6 37.0 23.4 13.7 6.9 65.3 4222

51 47.0 8.5 9.5 13.1 14.3 20.5 21.6 29.1 106.4 30.7 23.8 17.7 12.0 81.7 88.2 111.9 120.0 160.3 168.6 218.7 722.2 231.4 187.6 149.0 114.5 31.3 34.4 46.7 50.9 71.1 72.8 89.6 284.3 77.3 53.3 36.2 22.3 55.3 50.6 56.8 52.6 61.4 55.2 60.5 172.3 44.0 28.9 17.9 10.0 65.3 4262

52 45.0 8.1 9.1 12.6 13.8 19.7 20.8 28.1 103.0 29.7 23.1 17.2 11.7 79.4 85.7 108.9 116.1 155.3 162.5 211.1 697.9 223.8 181.7 144.4 110.0 30.1 33.2 44.3 48.8 68.3 72.2 93.3 304.3 82.7 59.1 39.5 25.2 61.6 58.1 63.0 59.0 68.4 62.3 69.4 195.2 52.8 34.4 22.1 13.1 65.3 4299

53 43.0 7.8 8.7 12.1 13.2 19.0 20.1 27.2 99.5 28.8 22.3 16.6 11.3 77.1 83.3 105.9 113.1 150.3 157.5 203.5 673.5 216.3 175.8 139.9 106.6 28.9 31.9 42.7 46.3 65.5 69.4 92.6 316.8 88.6 63.3 43.8 27.5 69.5 64.7 72.3 65.4 76.8 69.4 78.3 224.0 59.8 41.3 26.3 16.2 65.3 4335

54 41.0 7.4 8.3 11.6 12.7 18.3 19.3 26.2 96.0 27.8 21.6 16.1 11.0 74.8 80.9 102.9 110.0 146.3 152.4 197.1 649.2 208.8 169.9 135.3 103.3 28.0 30.7 41.1 44.6 62.1 66.5 88.9 314.3 92.2 67.7 46.9 30.5 75.8 73.0 80.5 75.1 85.2 77.9 87.2 252.7 68.6 46.8 31.6 19.2 65.3 4359

55 39.0 7.1 7.9 11.1 12.2 17.5 18.6 25.2 92.5 26.8 20.9 15.6 10.7 72.5 78.5 100.0 106.9 142.2 148.3 190.8 628.9 201.2 163.9 130.7 99.9 27.1 29.7 39.5 42.9 59.8 63.1 85.2 301.8 91.5 70.5 50.2 32.6 84.1 79.7 90.8 83.7 97.7 86.4 97.9 281.4 77.4 53.7 35.8 23.1 65.3 4380

56 37.0 6.7 7.6 10.6 11.6 16.8 17.8 24.2 89.0 25.8 20.1 15.0 10.3 70.2 76.1 97.0 103.8 138.2 144.3 185.7 608.6 194.9 158.0 126.2 96.5 26.3 28.8 38.3 41.2 57.6 60.8 80.8 289.3 87.8 70.0 52.3 34.9 90.0 88.4 99.1 94.4 108.9 99.1 108.6 315.8 86.2 60.5 41.0 26.2 65.3 4406

57 35.0 6.3 7.2 10.0 11.1 16.0 17.1 23.2 85.5 24.9 19.4 14.5 10.0 67.9 73.7 94.0 100.7 134.2 140.2 180.6 592.4 188.6 153.1 121.6 93.2 25.4 27.9 37.0 40.0 55.3 58.5 77.9 274.4 84.2 67.2 51.9 36.3 96.3 94.6 109.9 103.0 122.9 110.5 124.6 350.3 96.8 67.4 46.3 30.0 65.3 4439

58 33.0 6.0 6.8 9.5 10.5 15.3 16.3 22.2 82.0 23.9 18.7 14.0 9.6 65.6 71.2 91.0 97.6 130.2 136.1 175.5 576.1 183.6 148.1 117.8 89.8 24.5 26.9 35.8 38.7 53.6 56.2 75.0 264.4 79.8 64.4 49.8 36.0 100.3 101.3 117.7 114.2 134.0 124.6 138.9 402.0 107.4 75.7 51.6 33.9 65.3 4489

59 31.0 5.6 6.4 9.0 10.0 14.5 15.5 21.2 78.5 22.9 17.9 13.5 9.3 63.3 68.8 88.0 94.5 126.2 132.1 170.4 559.9 178.6 144.2 114.0 87.0 23.6 26.0 34.6 37.4 51.9 54.5 72.0 254.4 76.9 61.1 47.8 34.6 99.5 105.4 125.9 122.3 148.7 136.0 156.7 447.9 123.2 83.9 57.9 37.7 65.3 4536

60 29.0 5.3 6.0 8.5 9.5 13.8 14.8 20.2 75.0 21.9 17.2 12.9 8.9 61.0 66.4 85.0 91.4 122.2 128.0 165.3 543.7 173.5 140.2 111.0 84.2 22.9 25.0 33.4 36.2 50.2 52.7 69.8 244.4 74.0 58.9 45.3 33.2 95.5 104.6 131.1 130.9 159.1 150.8 170.9 505.3 137.3 96.3 64.2 42.3 65.3 4586

61 27.0 4.9 5.6 8.0 8.9 13.0 14.0 19.3 71.5 21.0 16.5 12.4 8.6 58.7 64.0 82.1 88.3 118.2 123.9 160.2 527.4 168.5 136.3 107.9 81.9 22.1 24.3 32.2 34.9 48.5 51.0 67.6 236.9 71.1 56.6 43.6 31.5 91.6 100.4 130.0 136.2 170.3 161.5 189.6 551.3 154.9 107.3 73.7 46.9 65.3 4620

62 25.0 4.5 5.2 7.5 8.4 12.3 13.3 18.3 68.1 20.0 15.7 11.9 8.2 56.4 61.6 79.1 85.2 114.2 119.9 155.2 511.2 163.5 132.3 104.9 79.7 21.5 23.5 31.2 33.7 46.8 49.3 65.4 229.5 69.0 54.4 42.0 30.3 86.9 96.3 124.9 135.1 177.3 172.8 202.9 611.6 169.0 121.1 82.1 53.9 65.3 4652

63 23.0 4.2 4.8 7.0 7.8 11.5 12.5 17.3 64.6 19.0 15.0 11.4 7.9 54.1 59.2 76.1 82.1 110.2 115.8 150.1 495.0 158.5 128.4 101.9 77.4 20.9 22.8 30.2 32.6 45.1 47.6 63.2 222.0 66.8 52.8 40.3 29.2 83.7 91.3 119.7 129.8 175.9 179.9 217.2 654.6 187.4 132.1 92.6 60.0 65.3 4654

64 21.0 3.8 4.5 6.4 7.3 10.8 11.7 16.3 61.1 18.0 14.3 10.8 7.5 51.8 56.8 73.1 79.0 106.2 111.8 145.0 478.8 153.4 124.4 98.8 75.2 20.4 22.2 29.4 31.6 43.7 45.9 61.0 214.5 64.6 51.1 39.1 28.0 80.5 88.0 113.5 124.4 168.9 178.4 226.1 700.6 200.6 146.5 101.0 67.7 65.3 4640

65 19.0 3.4 4.1 5.9 6.8 10.1 11.0 15.3 57.6 17.1 13.5 10.3 7.2 49.5 54.3 70.1 75.9 102.2 107.7 139.9 462.5 148.4 120.5 95.8 73.0 19.8 21.6 28.6 30.7 42.3 44.4 58.8 207.0 62.4 49.4 37.9 27.2 77.4 84.7 109.4 118.0 161.9 171.4 224.3 729.3 214.7 156.8 112.1 73.9 65.3 4591

66 17.0 3.1 3.7 5.4 6.2 9.3 10.2 14.3 54.1 16.1 12.8 9.8 6.8 47.2 51.9 67.1 72.8 98.2 103.6 134.8 446.3 143.4 116.5 92.7 70.7 19.2 21.0 27.8 29.9 41.2 43.0 56.9 199.5 60.2 47.8 36.6 26.3 75.0 81.3 105.3 113.7 153.6 164.3 215.4 723.6 223.5 167.8 120.0 81.9 65.3 4497

67 15.0 2.7 3.3 4.9 5.7 8.6 9.5 13.3 50.6 15.1 12.1 9.2 6.5 44.9 49.5 64.1 69.7 94.2 99.6 129.7 430.1 138.3 112.6 89.7 68.5 18.6 20.3 27.0 29.0 40.1 41.8 55.1 193.3 58.1 46.1 35.4 25.5 72.6 78.8 101.2 109.4 148.0 155.8 206.5 694.8 221.7 174.7 128.4 87.7 65.3 4367

68 13.0 2.4 2.9 4.4 5.1 7.8 8.7 12.3 47.1 14.1 11.4 8.7 6.1 42.6 47.1 61.2 66.6 90.2 95.5 124.6 413.8 133.3 108.6 86.7 66.2 18.0 19.7 26.2 28.2 38.9 40.7 53.6 187.1 56.3 44.4 34.2 24.6 70.3 76.4 98.1 105.1 142.4 150.1 195.8 666.1 212.9 173.4 133.6 93.9 65.3 4222

69 11.0 2.0 2.5 3.9 4.6 7.1 8.0 11.4 43.6 13.2 10.6 8.2 5.8 40.3 44.7 58.2 63.5 86.2 91.4 119.5 397.6 128.3 104.7 83.6 64.0 17.4 19.1 25.4 27.3 37.8 39.6 52.2 182.1 54.4 43.0 32.9 23.7 67.9 73.9 95.0 101.9 136.8 144.5 188.7 631.7 204.2 166.5 132.6 97.7 65.3 4064

70 9.0 1.6 2.1 3.4 4.1 6.3 7.2 10.4 40.1 12.2 9.9 7.7 5.4 38.0 42.3 55.2 60.4 82.1 87.4 114.5 381.4 123.2 100.7 80.6 61.7 16.8 18.5 24.6 26.5 36.7 38.4 50.7 177.1 53.0 41.6 31.9 22.9 65.5 71.4 91.9 98.7 132.6 138.8 181.6 608.7 193.6 159.6 127.3 96.9 65.3 3908

71 7.0 1.3 1.7 2.8 3.5 5.6 6.4 9.4 36.6 11.2 9.2 7.1 5.1 35.7 39.9 52.2 57.3 78.1 83.3 109.4 365.2 118.2 96.8 77.5 59.5 16.2 17.8 23.8 25.7 35.6 37.3 49.2 172.1 51.5 40.5 30.9 22.2 63.2 68.9 88.8 95.5 128.4 134.5 174.5 585.7 186.6 151.3 122.1 93.1 65.3 3753

72 5.0 0.9 1.4 2.3 3.0 4.8 5.7 8.4 33.2 10.2 8.4 6.6 4.7 33.4 37.4 49.2 54.2 74.1 79.2 104.3 348.9 113.2 92.8 74.5 57.2 15.6 17.2 23.0 24.8 34.4 36.1 47.8 167.1 50.1 39.4 30.1 21.5 61.2 66.4 85.7 92.2 124.2 130.3 169.1 562.8 179.5 145.8 115.8 89.2 65.3 3603

73 3.0 0.5 1.0 1.8 2.4 4.1 4.9 7.4 29.7 9.3 7.7 6.1 4.4 31.1 35.0 46.2 51.1 70.1 75.2 99.2 332.7 108.2 88.9 71.5 55.0 15.0 16.6 22.2 24.0 33.3 35.0 46.3 162.1 48.6 38.3 29.2 20.9 59.2 64.3 82.6 89.0 120.1 126.0 163.8 545.5 172.5 140.3 111.6 84.6 65.3 3460

74 2.0 0.4 0.6 1.3 1.9 3.4 4.2 6.4 26.2 8.3 7.0 5.5 4.0 28.8 32.6 43.3 48.0 66.1 71.1 94.1 316.5 103.1 84.9 68.4 52.7 14.5 16.0 21.3 23.1 32.2 33.8 44.8 157.1 47.2 37.2 28.4 20.3 57.6 62.3 80.0 85.8 115.9 121.8 158.4 528.3 167.2 134.8 107.3 81.5 65.3 3321

75 1.5 0.3 0.4 0.8 1.4 2.6 3.4 5.4 22.7 7.3 6.2 5.0 3.7 26.5 30.2 40.3 44.9 62.1 67.1 89.0 300.2 98.1 81.0 65.4 50.5 13.9 15.3 20.5 22.3 31.0 32.7 43.4 152.1 45.7 36.1 27.6 19.7 56.1 60.6 77.4 83.1 111.7 117.5 153.1 511.1 161.9 130.7 103.1 78.5 65.3 3185

76 1.0 0.2 0.3 0.5 0.8 1.9 2.7 4.4 19.2 6.3 5.5 4.5 3.3 24.2 27.8 37.3 41.8 58.1 63.0 83.9 284.0 93.1 77.0 62.3 48.3 13.3 14.7 19.7 21.5 29.9 31.5 41.9 147.2 44.3 35.0 26.8 19.2 54.5 58.9 75.3 80.4 108.2 113.3 147.8 493.9 156.6 126.6 100.0 75.4 65.3 3051

77 0.5 0.1 0.2 0.4 0.5 1.1 1.9 3.5 15.7 5.4 4.8 4.0 3.0 21.9 25.4 34.3 38.7 54.1 58.9 78.9 267.8 88.0 73.1 59.3 46.0 12.7 14.1 18.9 20.6 28.8 30.4 40.4 142.2 42.8 33.9 25.9 18.6 52.9 57.3 73.3 78.3 104.7 109.8 142.4 476.6 151.4 122.4 96.8 73.1 65.3 2920

78 0.0 0.0 0.1 0.3 0.4 0.7 1.1 2.5 12.2 4.4 4.0 3.4 2.6 19.6 22.9 31.3 35.6 50.1 54.9 73.8 251.6 83.0 69.1 56.3 43.8 12.1 13.5 18.1 19.8 27.7 29.2 38.9 137.2 41.4 32.8 25.1 18.0 51.3 55.6 71.2 76.2 101.9 106.2 138.0 459.4 146.1 118.3 93.7 70.8 65.3 2791

79 0.0 0.0 0.0 0.1 0.3 0.6 0.8 1.5 8.7 3.4 3.3 2.9 2.3 17.3 20.5 28.3 32.5 46.1 50.8 68.7 235.3 78.0 65.2 53.2 41.5 11.5 12.8 17.3 18.9 26.5 28.1 37.5 132.2 39.9 31.7 24.3 17.4 49.7 54.0 69.2 74.0 99.1 103.4 133.5 445.0 140.8 114.2 90.5 68.5 65.3 2666

80 0.0 0.0 0.0 0.0 0.1 0.4 0.6 1.0 5.2 2.4 2.6 2.4 1.9 15.0 18.1 25.4 29.4 42.1 46.7 63.6 219.1 72.9 61.2 50.2 39.3 10.9 12.2 16.5 18.1 25.4 26.9 36.0 127.2 38.5 30.5 23.5 16.9 48.2 52.3 67.1 71.9 96.3 100.6 130.0 430.7 136.4 110.1 87.3 66.2 65.3 2544

81 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.7 3.5 1.5 1.8 1.9 1.6 12.7 15.7 22.4 26.3 38.1 42.7 58.5 202.9 67.9 57.3 47.1 37.0 10.3 11.6 15.7 17.2 24.3 25.8 34.5 122.2 37.0 29.4 22.6 16.3 46.6 50.6 65.0 69.7 93.5 97.7 126.4 419.2 132.0 106.6 84.2 63.9 65.3 2428


Page 75 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

82 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.5 2.6 1.0 1.1 1.3 1.2 10.4 13.3 19.4 23.2 34.1 38.6 53.4 186.6 62.9 53.3 44.1 34.8 9.7 11.0 14.9 16.4 23.1 24.7 33.1 117.2 35.6 28.3 21.8 15.7 45.0 49.0 63.0 67.6 90.7 94.9 122.8 407.7 128.5 103.2 81.6 61.5 65.3 2314

83 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.7 0.7 0.7 0.8 0.9 8.1 10.9 16.4 20.1 30.1 34.5 48.3 170.4 57.9 49.4 41.0 32.5 9.1 10.3 14.1 15.6 22.0 23.5 31.6 112.2 34.1 27.2 21.0 15.2 43.4 47.3 60.9 65.4 88.0 92.1 119.3 396.2 125.0 100.4 78.9 59.6 65.3 2202

84 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 0.5 0.6 0.5 0.5 5.8 8.5 13.4 17.0 26.0 30.5 43.2 154.2 52.8 45.4 38.0 30.3 8.6 9.7 13.3 14.7 20.9 22.4 30.1 107.2 32.7 26.1 20.2 14.6 41.8 45.7 58.8 63.3 85.2 89.2 115.7 384.7 121.4 97.7 76.8 57.7 65.3 2092

85 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.4 0.4 3.5 6.0 10.4 13.9 22.0 26.4 38.2 138.0 47.8 41.5 35.0 28.1 8.0 9.1 12.5 13.9 19.8 21.2 28.7 102.3 31.2 25.0 19.4 14.0 40.3 44.0 56.8 61.1 82.4 86.4 112.2 373.3 117.9 94.9 74.7 56.2 65.3 1982

86 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.3 2.3 3.6 7.5 10.8 18.0 22.4 33.1 121.7 42.8 37.5 31.9 25.8 7.4 8.5 11.7 13.0 18.6 20.1 27.2 97.3 29.8 23.9 18.5 13.4 38.7 42.3 54.7 59.0 79.6 83.6 108.6 361.8 114.4 92.2 72.6 54.6 65.3 1875

87 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 1.7 2.4 4.5 7.7 14.0 18.3 28.0 105.5 37.7 33.6 28.9 23.6 6.8 7.8 10.9 12.2 17.5 18.9 25.7 92.3 28.3 22.8 17.7 12.9 37.1 40.7 52.6 56.8 76.8 80.7 105.0 350.3 110.9 89.4 70.5 53.1 65.3 1769

88 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.2 1.8 3.0 4.7 10.0 14.2 22.9 89.3 32.7 29.6 25.8 21.3 6.2 7.2 10.1 11.4 16.4 17.8 24.3 87.3 26.9 21.7 16.9 12.3 35.5 39.0 50.6 54.7 74.0 77.9 101.5 338.8 107.4 86.7 68.4 51.5 65.3 1666

89 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.2 2.2 3.1 6.0 10.2 17.8 73.0 27.7 25.7 22.8 19.1 5.6 6.6 9.3 10.5 15.2 16.6 22.8 82.3 25.4 20.5 16.1 11.7 34.0 37.4 48.5 52.6 71.2 75.1 97.9 327.3 103.8 83.9 66.3 50.0 65.3 1565

90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.5 2.3 4.0 6.1 12.7 56.8 22.6 21.7 19.8 16.8 5.0 6.0 8.5 9.7 14.1 15.5 21.3 77.3 24.0 19.4 15.2 11.2 32.4 35.7 46.4 50.4 68.4 72.2 94.3 315.8 100.3 81.2 64.2 48.5 65.3 1467

91 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.6 3.0 4.1 7.6 40.6 17.6 17.8 16.7 14.6 4.4 5.3 7.7 8.8 13.0 14.3 19.8 72.3 22.5 18.3 14.4 10.6 30.8 34.0 44.4 48.3 65.6 69.4 90.8 304.4 96.8 78.4 62.1 46.9 65.3 1373

92 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.0 3.1 5.1 24.3 12.6 13.8 13.7 12.3 3.8 4.7 6.9 8.0 11.9 13.2 18.4 67.3 21.1 17.2 13.6 10.0 29.2 32.4 42.3 46.1 62.8 66.6 87.2 292.9 93.3 75.7 60.0 45.4 65.3 1283

93 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.0 3.8 16.2 7.6 9.9 10.6 10.1 3.2 4.1 6.0 7.2 10.7 12.0 16.9 62.4 19.6 16.1 12.8 9.4 27.6 30.7 40.3 44.0 60.0 63.7 83.7 281.4 89.8 72.9 57.9 43.9 65.3 1203

94 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.5 12.2 5.0 5.9 7.6 7.9 2.7 3.4 5.2 6.3 9.6 10.9 15.4 57.4 18.1 15.0 11.9 8.9 26.1 29.1 38.2 41.8 57.2 60.9 80.1 269.9 86.2 70.2 55.8 42.3 65.3 1130

95 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 8.1 3.8 4.0 4.6 5.6 2.1 2.8 4.4 5.5 8.5 9.7 14.0 52.4 16.7 13.9 11.1 8.3 24.5 27.4 36.1 39.7 54.4 58.1 76.5 258.4 82.7 67.4 53.7 40.8 65.3 1062

96 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.1 2.5 3.0 3.0 3.4 1.5 2.2 3.6 4.6 7.3 8.6 12.5 47.4 15.2 12.8 10.3 7.7 22.9 25.7 34.1 37.5 51.7 55.2 73.0 246.9 79.2 64.7 51.6 39.2 65.3 997

97 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 2.0 2.3 2.2 0.9 1.6 2.8 3.8 6.2 7.5 11.0 42.4 13.8 11.7 9.5 7.2 21.3 24.1 32.0 35.4 48.9 52.4 69.4 235.4 75.7 61.9 49.5 37.7 65.3 935

98 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.5 1.7 0.6 0.9 2.0 2.9 5.1 6.3 9.6 37.4 12.3 10.6 8.6 6.6 19.7 22.4 29.9 33.3 46.1 49.6 65.9 224.0 72.2 59.2 47.4 36.2 65.3 878

99 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.1 0.4 0.6 1.2 2.1 4.0 5.2 8.1 32.4 10.9 9.4 7.8 6.0 18.2 20.8 27.9 31.1 43.3 46.7 62.3 212.5 68.6 56.4 45.3 34.6 65.3 823

100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 0.3 0.5 0.8 1.3 2.8 4.0 6.6 27.4 9.4 8.3 7.0 5.4 16.6 19.1 25.8 29.0 40.5 43.9 58.7 201.0 65.1 53.7 43.1 33.1 65.3 769

101 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.6 0.8 1.7 2.9 5.1 22.5 8.0 7.2 6.2 4.9 15.0 17.4 23.7 26.8 37.7 41.1 55.2 189.5 61.6 50.9 41.0 31.5 65.3 717

102 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.6 1.1 1.7 3.7 17.5 6.5 6.1 5.4 4.3 13.4 15.8 21.7 24.7 34.9 38.2 51.6 178.0 58.1 48.2 38.9 30.0 65.3 666

103 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.9 1.2 2.2 12.5 5.1 5.0 4.5 3.7 11.8 14.1 19.6 22.5 32.1 35.4 48.1 166.5 54.6 45.4 36.8 28.5 65.3 616

104 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.6 0.9 1.5 7.5 3.6 3.9 3.7 3.2 10.3 12.5 17.6 20.4 29.3 32.6 44.5 155.1 51.0 42.7 34.7 26.9 65.3 568

105 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.6 1.1 5.0 2.2 2.8 2.9 2.6 8.7 10.8 15.5 18.2 26.5 29.7 40.9 143.6 47.5 39.9 32.6 25.4 65.3 522

106 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.7 3.7 1.5 1.7 2.1 2.0 7.1 9.1 13.4 16.1 23.7 26.9 37.4 132.1 44.0 37.2 30.5 23.9 65.3 479

107 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.5 1.1 1.1 1.2 1.4 5.5 7.5 11.4 13.9 20.9 24.1 33.8 120.6 40.5 34.4 28.4 22.3 65.3 436

108 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 0.7 0.8 0.8 0.9 4.0 5.8 9.3 11.8 18.2 21.2 30.3 109.1 37.0 31.6 26.3 20.8 65.3 395

109 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.6 0.6 0.6 2.4 4.2 7.2 9.7 15.4 18.4 26.7 97.6 33.4 28.9 24.2 19.2 65.3 355

110 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.4 0.4 1.6 2.5 5.2 7.5 12.6 15.6 23.1 86.1 29.9 26.1 22.1 17.7 65.3 316

111 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 1.2 1.7 3.1 5.4 9.8 12.8 19.6 74.7 26.4 23.4 20.0 16.2 65.3 280

112 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.8 1.2 2.1 3.2 7.0 9.9 16.0 63.2 22.9 20.6 17.9 14.6 65.3 245

113 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 1.6 2.2 4.2 7.1 12.5 51.7 19.4 17.9 15.8 13.1 65.3 212

114 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.0 1.6 2.8 4.3 8.9 40.2 15.8 15.1 13.7 11.5 65.3 181

115 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.1 2.1 2.8 5.3 28.7 12.3 12.4 11.6 10.0 65.3 152

116 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.4 2.1 3.6 17.2 8.8 9.6 9.5 8.5 65.3 127

117 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.4 2.7 11.5 5.3 6.9 7.4 6.9 65.3 108

118 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.8 8.6 3.5 4.1 5.3 5.4 65.3 95

119 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 5.7 2.6 2.8 3.2 3.9 65.3 84

120 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.9 1.8 2.1 2.1 2.3 65.3 76

121 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 1.4 1.6 1.5 65.3 71

122 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.1 1.2 65.3 68

123 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.8 65.3 67

124 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 65.3 66

125 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 65.3 65


Page 76 of 100


Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

0.18 0.19 0.26 0.27 0.37 0.38 0.49 1.74 0.49 0.37 0.26 0.17 1.15 1.21 1.49 1.55 2.00 2.03 2.54 8.11 2.52 1.97 1.52 1.12 0.29 0.31 0.40 0.42 0.56 0.57 0.73 2.49 0.73 0.56 0.41 0.29 0.79 0.83 1.03 1.07 1.40 1.42 1.78 5.74 1.76 1.38 1.05 0.77

0 0.0 0.0 46.4 46

1 2.0 0.4 0.0 46.4 47

2 4.0 0.7 0.4 0.0 46.4 48

3 6.0 1.1 0.8 0.5 0.0 46.4 49

4 8.0 1.5 1.2 1.0 0.5 0.0 46.4 51

5 10.0 1.8 1.6 1.6 1.1 0.7 0.0 46.4 53

6 12.0 2.2 1.9 2.1 1.6 1.5 0.8 0.0 46.4 56

7 14.0 2.5 2.3 2.6 2.2 2.2 1.5 1.0 0.0 46.4 61

8 16.0 2.9 2.7 3.1 2.7 3.0 2.3 2.0 3.5 0.0 46.4 69

9 18.0 3.3 3.1 3.6 3.2 3.7 3.0 3.0 7.0 1.0 0.0 46.4 77

10 20.0 3.6 3.5 4.1 3.8 4.5 3.8 4.0 10.5 2.0 0.7 0.0 46.4 87

11 22.0 4.0 3.9 4.6 4.3 5.2 4.6 4.9 14.0 2.9 1.5 0.5 0.0 46.4 97

12 24.0 4.3 4.3 5.2 4.9 6.0 5.3 5.9 17.5 3.9 2.2 1.1 0.4 0.0 46.4 107

13 26.0 4.7 4.7 5.7 5.4 6.7 6.1 6.9 20.9 4.9 2.9 1.6 0.7 2.3 0.0 46.4 120

14 28.5 5.2 5.0 6.2 6.0 7.5 6.8 7.9 24.4 5.9 3.7 2.1 1.1 4.6 2.4 0.0 46.4 135

15 31.5 5.7 5.5 6.7 6.5 8.2 7.6 8.9 27.9 6.8 4.4 2.6 1.4 6.9 4.8 3.0 0.0 46.4 153

16 34.5 6.2 6.1 7.3 7.0 8.9 8.3 9.9 31.4 7.8 5.1 3.2 1.8 9.2 7.3 6.0 3.1 0.0 46.4 175

17 38.0 6.9 6.7 8.1 7.7 9.7 9.1 10.9 34.9 8.8 5.9 3.7 2.1 11.5 9.7 9.0 6.2 4.0 0.0 46.4 201

18 42.0 7.6 7.4 8.9 8.5 10.6 9.9 11.9 38.4 9.8 6.6 4.2 2.4 13.8 12.1 11.9 9.3 8.0 4.1 0.0 46.4 232

19 47.0 8.5 8.1 9.8 9.3 11.7 10.8 12.8 41.9 10.7 7.3 4.8 2.8 16.1 14.5 14.9 12.4 12.0 8.1 5.1 0.0 46.4 268

20 53.0 9.6 9.1 10.8 10.3 12.9 11.9 14.1 45.4 11.7 8.1 5.3 3.1 18.4 16.9 17.9 15.5 16.0 12.2 10.2 16.2 0.0 46.4 322

21 59.0 10.7 10.3 12.1 11.4 14.2 13.1 15.6 49.7 12.7 8.8 5.8 3.5 20.7 19.3 20.9 18.6 20.0 16.3 15.3 32.5 5.0 0.0 46.4 383

22 65.0 11.8 11.4 13.7 12.7 15.6 14.4 17.0 55.0 13.9 9.5 6.3 3.8 23.0 21.7 23.9 21.7 24.0 20.3 20.4 48.7 10.1 4.0 0.0 46.4 449

23 71.0 12.8 12.6 15.2 14.3 17.5 15.9 18.8 60.2 15.4 10.4 6.9 4.2 25.3 24.2 26.9 24.8 28.1 24.4 25.4 64.9 15.1 7.9 3.0 0.0 46.4 520

24 76.0 13.8 13.8 16.7 16.0 19.7 17.8 20.7 66.3 16.8 11.5 7.5 4.5 27.6 26.6 29.8 27.9 32.1 28.5 30.5 81.2 20.1 11.9 6.1 2.2 0.0 46.4 596

25 78.0 14.1 14.7 18.3 17.6 22.0 20.1 23.2 73.3 18.5 12.6 8.3 5.0 29.9 29.0 32.8 31.0 36.1 32.5 35.6 97.4 25.2 15.8 9.1 4.5 0.6 0.0 46.4 673

26 77.5 14.0 15.1 19.6 19.2 24.2 22.4 26.2 82.0 20.5 13.9 9.1 5.5 32.8 31.4 35.8 34.1 40.1 36.6 40.7 113.6 30.2 19.8 12.2 6.7 1.2 0.6 0.0 46.4 754

27 75.0 13.6 15.0 20.1 20.5 26.4 24.6 29.1 92.5 22.9 15.4 10.0 6.0 36.3 34.4 38.8 37.2 44.1 40.6 45.8 129.8 35.2 23.7 15.2 9.0 1.8 1.3 0.8 0.0 46.4 836

28 72.0 13.0 14.5 20.0 21.1 28.3 26.9 32.1 103.0 25.8 17.2 11.1 6.6 39.7 38.0 42.5 40.3 48.1 44.7 50.9 146.1 40.2 27.7 18.2 11.2 2.4 1.9 1.6 0.8 0.0 46.4 920

29 70.0 12.7 13.9 19.3 21.0 29.1 28.8 35.1 113.4 28.8 19.4 12.4 7.3 43.7 41.7 47.0 44.1 52.1 48.8 56.0 162.3 45.3 31.6 21.3 13.5 3.0 2.5 2.4 1.7 1.1 0.0 46.4 1005

30 68.0 12.3 13.6 18.5 20.3 28.9 29.6 37.5 123.9 31.7 21.6 14.0 8.2 48.3 45.9 51.5 48.8 57.1 52.8 61.0 178.5 50.3 35.6 24.3 15.7 3.5 3.1 3.2 2.5 2.3 1.2 0.0 46.4 1092

31 66.0 11.9 13.2 18.0 19.5 27.9 29.4 38.5 132.6 34.6 23.8 15.6 9.3 54.1 50.7 56.7 53.4 63.1 57.9 66.1 194.8 55.3 39.5 27.4 18.0 4.1 3.8 4.0 3.4 3.4 2.3 1.5 0.0 46.4 1180

32 64.0 11.6 12.8 17.5 18.9 26.8 28.4 38.3 136.1 37.0 26.0 17.2 10.3 61.0 56.8 62.7 58.9 69.1 64.0 72.5 211.0 60.4 43.5 30.4 20.2 4.7 4.4 4.8 4.2 4.5 3.4 2.9 5.0 0.0 46.4 1272

33 62.0 11.2 12.4 17.0 18.4 26.1 27.3 37.0 135.2 38.0 27.8 18.7 11.3 67.9 64.0 70.1 65.0 76.1 70.1 80.1 231.3 65.4 47.4 33.4 22.4 5.3 5.0 5.6 5.1 5.6 4.6 4.4 10.0 1.5 0.0 46.4 1367

34 60.0 10.9 12.0 16.5 17.8 25.3 26.5 35.6 130.9 37.8 28.6 20.1 12.4 74.8 71.2 79.1 72.8 84.1 77.2 87.8 255.6 71.7 51.4 36.5 24.7 5.9 5.6 6.4 5.9 6.8 5.7 5.9 15.0 2.9 1.1 0.0 46.4 1469

35 58.0 10.5 11.6 16.0 17.3 24.6 25.8 34.6 125.6 36.6 28.4 20.6 13.3 81.7 78.5 88.0 82.1 94.2 85.3 96.7 280.0 79.2 56.3 39.5 26.9 6.5 6.3 7.3 6.7 7.9 6.9 7.4 20.0 4.4 2.2 0.8 0.0 46.4 1576

36 56.0 10.1 11.2 15.5 16.8 23.8 25.0 33.6 122.2 35.1 27.5 20.5 13.6 87.5 85.7 97.0 91.4 106.2 95.5 106.8 308.4 86.8 62.2 43.3 29.2 7.1 6.9 8.1 7.6 9.0 8.0 8.8 24.9 5.8 3.3 1.7 0.6 0.0 46.4 1693

37 54.0 9.8 10.9 14.9 16.2 23.1 24.2 32.6 118.7 34.1 26.4 19.8 13.5 89.8 91.8 105.9 100.7 118.2 107.7 119.5 340.8 95.6 68.1 47.9 32.0 7.7 7.5 8.9 8.4 10.2 9.2 10.3 29.9 7.3 4.4 2.5 1.1 1.6 0.0 46.4 1817

38 52.0 9.4 10.5 14.4 15.7 22.3 23.5 31.6 115.2 33.1 25.6 19.0 13.1 89.2 94.2 113.4 110.0 130.2 119.9 134.8 381.4 105.6 75.1 52.5 35.4 8.4 8.1 9.7 9.3 11.3 10.3 11.8 34.9 8.7 5.6 3.3 1.7 3.2 1.7 0.0 46.4 1949

39 50.0 9.0 10.1 13.9 15.1 21.6 22.7 30.6 111.7 32.2 24.9 18.5 12.6 86.3 93.6 116.4 117.7 142.2 132.1 150.1 430.1 118.2 83.0 57.8 38.7 9.3 8.9 10.5 10.1 12.4 11.5 13.2 39.9 10.2 6.7 4.1 2.3 4.7 3.3 2.1 0.0 46.4 2084

40 48.0 8.7 9.7 13.4 14.6 20.9 22.0 29.6 108.2 31.2 24.2 17.9 12.2 82.9 90.6 115.6 120.8 152.3 144.3 165.3 478.8 133.3 92.8 63.9 42.6 10.2 9.9 11.5 10.9 13.5 12.6 14.7 44.9 11.6 7.8 4.9 2.9 6.3 5.0 4.1 2.2 0.0 46.4 2215


Page 77 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

41 47.0 8.5 9.3 12.9 14.1 20.1 21.2 28.6 104.7 30.2 23.4 17.4 11.9 80.6 86.9 111.9 120.0 156.3 154.4 180.6 527.4 148.4 104.7 71.5 47.1 11.2 10.8 12.7 12.0 14.7 13.8 16.2 49.9 13.1 8.9 5.8 3.4 7.9 6.6 6.2 4.3 2.8 0.0 46.4 2339

42 46.0 8.3 9.1 12.4 13.5 19.4 20.5 27.7 101.2 29.2 22.7 16.9 11.5 78.2 84.5 107.4 116.1 155.3 158.5 193.3 576.1 163.5 116.5 80.6 52.7 12.4 11.9 13.9 13.3 16.1 14.9 17.6 54.9 14.5 10.0 6.6 4.0 9.5 8.3 8.3 6.4 5.6 2.8 0.0 46.4 2452

43 45.0 8.1 8.9 12.1 13.0 18.6 19.7 26.7 97.7 28.3 22.0 16.4 11.2 75.9 82.1 104.4 111.5 150.3 157.5 198.4 616.7 178.6 128.4 89.7 59.5 13.9 13.1 15.3 14.5 17.8 16.3 19.1 59.9 16.0 11.1 7.4 4.6 11.1 10.0 10.3 8.6 8.4 5.7 3.6 0.0 46.4 2548

44 44.0 8.0 8.7 11.9 12.7 17.9 18.9 25.7 94.2 27.3 21.2 15.8 10.8 73.6 79.7 101.4 108.4 144.2 152.4 197.1 632.9 191.1 140.2 98.8 66.2 15.6 14.7 16.9 16.0 19.5 18.1 20.9 64.9 17.4 12.2 8.2 5.2 12.6 11.6 12.4 10.7 11.2 8.5 7.1 11.5 0.0 46.4 2621

45 43.0 7.8 8.5 11.6 12.4 17.5 18.2 24.7 90.7 26.3 20.5 15.3 10.5 71.3 77.3 98.5 105.3 140.2 146.3 190.8 628.9 196.2 150.1 107.9 73.0 17.4 16.6 18.9 17.7 21.4 19.8 23.2 71.1 18.9 13.3 9.1 5.7 14.2 13.3 14.5 12.9 14.0 11.3 10.7 23.0 3.5 0.0 46.4 2666

46 42.0 7.6 8.3 11.3 12.2 17.1 17.8 23.7 87.3 25.3 19.8 14.8 10.1 69.0 74.9 95.5 102.2 136.2 142.2 183.1 608.6 194.9 154.1 115.5 79.7 19.2 18.5 21.3 19.8 23.7 21.8 25.4 78.6 20.7 14.4 9.9 6.3 15.8 14.9 16.5 15.0 16.8 14.2 14.2 34.5 7.0 2.8 0.0 46.4 2689

47 41.0 7.4 8.1 11.1 11.9 16.8 17.4 23.2 83.8 24.4 19.0 14.3 9.8 66.7 72.5 92.5 99.1 132.2 138.2 178.0 584.3 188.6 153.1 118.6 85.3 20.9 20.3 23.8 22.3 26.5 24.1 27.9 86.1 22.9 15.8 10.7 6.9 17.4 16.6 18.6 17.2 19.5 17.0 17.8 45.9 10.6 5.5 2.1 0.0 46.4 2699

48 40.0 7.2 7.9 10.8 11.6 16.4 17.1 22.7 82.0 23.4 18.3 13.7 9.4 64.4 70.0 89.5 96.0 128.2 134.1 173.0 568.0 181.1 148.1 117.8 87.5 22.4 22.2 26.2 24.8 29.9 26.9 30.9 94.8 25.0 17.5 11.7 7.4 19.0 18.3 20.6 19.3 22.3 19.8 21.4 57.4 14.1 8.3 4.2 1.5 46.4 2711

49 39.0 7.1 7.8 10.6 11.4 16.0 16.7 22.2 80.3 22.9 17.6 13.2 9.1 62.1 67.6 86.5 92.9 124.2 130.0 167.9 551.8 176.1 142.2 114.0 87.0 23.0 23.8 28.6 27.3 33.3 30.4 34.5 104.8 27.6 19.2 13.0 8.2 20.5 19.9 22.7 21.5 25.1 22.7 24.9 68.9 17.6 11.0 6.3 3.1 46.4 2721

50 38.0 6.9 7.6 10.3 11.1 15.6 16.3 21.7 78.5 22.4 17.2 12.7 8.7 59.8 65.2 83.5 89.8 120.2 126.0 162.8 535.6 171.0 138.3 109.5 84.2 22.9 24.4 30.6 29.9 36.7 33.8 38.9 117.2 30.5 21.1 14.2 9.0 22.5 21.6 24.8 23.6 27.9 25.5 28.5 80.4 21.1 13.8 8.4 4.6 46.4 2733

51 37.0 6.7 7.4 10.0 10.8 15.3 15.9 21.2 76.8 21.9 16.8 12.4 8.4 57.5 62.8 80.6 86.7 116.2 121.9 157.7 519.3 166.0 134.3 106.4 80.8 22.1 24.3 31.4 32.0 40.1 37.3 43.4 132.2 34.1 23.3 15.6 9.9 24.9 23.7 26.8 25.7 30.7 28.3 32.0 91.9 24.6 16.5 10.5 6.2 46.4 2748

52 36.0 6.5 7.2 9.8 10.5 14.9 15.5 20.7 75.0 21.4 16.5 12.1 8.2 55.2 60.4 77.6 83.6 112.2 117.8 152.6 503.1 161.0 130.4 103.4 78.6 21.2 23.5 31.2 32.8 42.9 40.7 47.8 147.2 38.5 26.1 17.3 10.9 27.2 26.1 29.4 27.9 33.5 31.2 35.6 103.4 28.2 19.3 12.6 7.7 46.4 2763

53 35.0 6.3 7.0 9.5 10.3 14.5 15.2 20.2 73.3 21.0 16.1 11.9 8.0 54.1 58.0 74.6 80.5 108.2 113.8 147.5 486.9 155.9 126.4 100.3 76.3 20.7 22.5 30.2 32.6 44.0 43.6 52.2 162.1 42.8 29.4 19.4 12.0 30.0 28.6 32.5 30.6 36.3 34.0 39.2 114.9 31.7 22.0 14.7 9.2 46.4 2777

54 34.0 6.2 6.8 9.3 10.0 14.2 14.8 19.8 71.5 20.5 15.7 11.6 7.9 52.9 56.8 71.6 77.4 104.2 109.7 142.4 470.6 150.9 122.5 97.3 74.1 20.1 21.9 29.0 31.6 43.7 44.7 55.8 177.1 47.2 32.8 21.8 13.4 33.2 31.5 35.6 33.8 39.8 36.8 42.7 126.3 35.2 24.8 16.8 10.8 46.4 2791

55 33.0 6.0 6.6 9.0 9.7 13.8 14.4 19.3 69.8 20.0 15.4 11.4 7.7 51.8 55.6 70.1 74.3 100.2 105.7 137.4 454.4 145.9 118.5 94.3 71.8 19.5 21.3 28.2 30.3 42.3 44.4 57.3 189.6 51.5 36.1 24.3 15.2 37.1 34.9 39.2 37.0 44.0 40.4 46.3 137.8 38.7 27.5 18.9 12.3 46.4 2803

56 32.0 5.8 6.4 8.8 9.5 13.4 14.0 18.8 68.1 19.5 15.0 11.1 7.5 50.6 54.3 68.6 72.8 96.2 101.6 132.3 438.2 140.8 114.6 91.2 69.6 18.9 20.7 27.4 29.4 40.6 43.0 56.9 194.5 55.2 39.4 26.8 16.9 41.8 39.0 43.4 40.8 48.2 44.6 50.7 149.3 42.2 30.3 21.1 13.9 46.4 2810

57 31.0 5.6 6.2 8.5 9.2 13.0 13.6 18.3 66.3 19.0 14.6 10.8 7.3 49.5 53.1 67.1 71.2 94.2 97.5 127.2 422.0 135.8 110.6 88.2 67.3 18.3 20.0 26.6 28.6 39.5 41.3 55.1 193.3 56.6 42.2 29.2 18.6 46.6 44.0 48.5 45.1 53.1 48.9 56.1 163.7 45.8 33.0 23.2 15.4 46.4 2815

58 30.0 5.4 6.0 8.2 8.9 12.7 13.3 17.8 64.6 18.5 14.3 10.6 7.2 48.3 51.9 65.6 69.7 92.2 95.5 122.1 405.7 130.8 106.7 85.1 65.1 17.7 19.4 25.8 27.8 38.4 40.1 52.9 187.1 56.3 43.3 31.3 20.3 51.3 49.0 54.7 50.4 58.6 53.8 61.4 180.9 50.2 35.8 25.3 16.9 46.4 2821

59 29.0 5.3 5.8 8.0 8.7 12.3 12.9 17.3 62.8 18.0 13.9 10.3 7.0 47.2 50.7 64.1 68.1 90.2 93.5 119.5 389.5 125.8 102.7 82.1 62.8 17.1 18.8 25.0 26.9 37.2 39.0 51.4 179.6 54.4 43.0 32.1 21.7 56.1 54.0 60.9 56.8 65.6 59.5 67.6 198.1 55.4 39.2 27.4 18.5 46.4 2830

60 28.0 5.1 5.6 7.7 8.4 11.9 12.5 16.8 61.1 17.5 13.5 10.0 6.8 46.0 49.5 62.7 66.6 88.2 91.4 117.0 381.4 120.7 98.8 79.1 60.6 16.5 18.2 24.2 26.1 36.1 37.8 50.0 174.6 52.3 41.6 31.9 22.3 60.0 58.9 67.1 63.3 74.0 66.6 74.8 218.2 60.7 43.3 30.0 20.0 46.4 2854

61 27.0 4.9 5.4 7.5 8.1 11.5 12.1 16.3 59.3 17.1 13.2 9.8 6.6 44.9 48.3 61.2 65.0 86.2 89.4 114.5 373.3 118.2 94.8 76.0 58.4 15.9 17.5 23.4 25.2 35.0 36.7 48.5 169.6 50.8 40.0 30.9 22.2 61.6 63.1 73.3 69.7 82.4 75.1 83.7 241.2 66.9 47.5 33.2 21.9 46.4 2883

62 26.0 4.7 5.2 7.2 7.8 11.2 11.7 15.8 57.6 16.6 12.8 9.5 6.5 43.7 47.1 59.7 63.5 84.1 87.4 111.9 365.2 115.7 92.8 73.0 56.1 15.3 16.9 22.6 24.4 33.9 35.5 47.0 164.6 49.4 38.9 29.6 21.5 61.2 64.7 78.4 76.2 90.7 83.6 94.3 269.9 73.9 52.3 36.3 24.2 46.4 2918

63 25.0 4.5 5.0 7.0 7.6 10.8 11.4 15.3 55.8 16.1 12.5 9.2 6.3 42.6 45.9 58.2 61.9 82.1 85.3 109.4 357.0 113.2 90.9 71.5 53.9 14.8 16.3 21.7 23.6 32.7 34.4 45.6 159.6 47.9 37.8 28.8 20.6 59.2 64.3 80.5 81.5 99.1 92.1 105.0 304.4 82.7 57.8 40.0 26.5 46.4 2956

64 24.0 4.3 4.8 6.7 7.3 10.4 11.0 14.8 54.1 15.6 12.1 9.0 6.1 41.4 44.7 56.7 60.4 80.1 83.3 106.8 348.9 110.7 88.9 69.9 52.7 14.2 15.6 20.9 22.7 31.6 33.3 44.1 154.6 46.5 36.7 28.0 20.0 56.8 62.3 80.0 83.7 106.1 100.6 115.7 338.8 93.3 64.7 44.2 29.2 46.4 2991

65 23.0 4.2 4.7 6.4 7.0 10.1 10.6 14.3 52.4 15.1 11.7 8.7 5.9 40.3 43.5 55.2 58.9 78.1 81.3 104.3 340.8 108.2 86.9 68.4 51.6 13.9 15.0 20.1 21.9 30.5 32.1 42.6 149.6 45.0 35.5 27.2 19.5 55.3 59.8 77.4 83.1 108.9 107.6 126.4 373.3 103.8 72.9 49.5 32.3 46.4 3018

66 22.0 4.0 4.5 6.2 6.8 9.7 10.2 13.8 50.6 14.6 11.4 8.4 5.8 39.1 42.3 53.7 57.3 76.1 79.2 101.7 332.7 105.6 84.9 66.9 50.5 13.6 14.7 19.3 21.0 29.3 31.0 41.2 144.7 43.6 34.4 26.3 18.9 53.7 58.1 74.3 80.4 108.2 110.5 135.3 407.7 114.4 81.2 55.8 36.2 46.4 3036

67 21.0 3.8 4.3 5.9 6.5 9.3 9.9 13.3 48.9 14.1 11.0 8.2 5.6 38.0 41.1 52.2 55.8 74.1 77.2 99.2 324.6 103.1 83.0 65.4 49.4 13.3 14.4 18.9 20.2 28.2 29.8 39.7 139.7 42.1 33.3 25.5 18.3 52.1 56.4 72.3 77.2 104.7 109.8 138.9 436.4 125.0 89.4 62.1 40.8 46.4 3038

68 20.0 3.6 4.1 5.7 6.2 8.9 9.5 12.8 47.1 13.7 10.6 7.9 5.4 36.8 39.9 50.7 54.2 72.1 75.2 96.7 316.5 100.6 81.0 63.9 48.3 13.0 14.1 18.5 19.8 27.1 28.7 38.2 134.7 40.6 32.2 24.7 17.7 50.5 54.8 70.2 75.1 100.5 106.2 138.0 447.9 133.8 97.7 68.4 45.4 46.4 3015

69 19.0 3.4 3.9 5.4 6.0 8.6 9.1 12.3 45.4 13.2 10.3 7.7 5.2 35.7 38.6 49.2 52.7 70.1 73.1 94.1 308.4 98.1 79.0 62.3 47.1 12.7 13.8 18.1 19.4 26.5 27.5 36.7 129.7 39.2 31.1 23.9 17.2 49.0 53.1 68.1 72.9 97.7 102.0 133.5 445.0 137.3 104.6 74.7 50.0 46.4 2969

70 18.0 3.3 3.7 5.2 5.7 8.2 8.7 11.9 43.6 12.7 9.9 7.4 5.1 34.5 37.4 47.7 51.1 68.1 71.1 91.6 300.2 95.6 77.0 60.8 46.0 12.4 13.5 17.7 18.9 26.0 26.9 35.3 124.7 37.7 30.0 23.1 16.6 47.4 51.5 66.1 70.8 94.9 99.1 128.2 430.7 136.4 107.3 80.0 54.6 46.4 2902

71 17.0 3.1 3.5 4.9 5.4 7.8 8.3 11.4 41.9 12.2 9.5 7.1 4.9 33.4 36.2 46.2 49.6 66.1 69.1 89.0 292.1 93.1 75.1 59.3 44.9 12.1 13.1 17.3 18.5 25.4 26.4 34.5 119.7 36.3 28.9 22.2 16.0 45.8 49.8 64.0 68.6 92.1 96.3 124.6 413.5 132.0 106.6 82.1 58.5 46.4 2825

72 16.0 2.9 3.3 4.6 5.1 7.5 8.0 10.9 40.1 11.7 9.2 6.9 4.7 32.2 35.0 44.8 48.0 64.1 67.1 86.5 284.0 90.5 73.1 57.8 43.8 11.8 12.8 16.9 18.1 24.8 25.8 33.8 117.2 34.8 27.8 21.4 15.4 44.2 48.1 61.9 66.5 89.3 93.5 121.1 402.0 126.7 103.2 81.6 60.0 46.4 2747

73 15.0 2.7 3.1 4.4 4.9 7.1 7.6 10.4 38.4 11.2 8.8 6.6 4.5 31.1 33.8 43.3 46.5 62.1 65.0 83.9 275.9 88.0 71.1 56.3 42.6 11.5 12.5 16.5 17.7 24.3 25.2 33.1 114.7 34.1 26.7 20.6 14.9 42.6 46.5 59.9 64.4 86.6 90.6 117.5 390.5 123.2 99.1 78.9 59.6 46.4 2667

74 14.0 2.5 2.9 4.1 4.6 6.7 7.2 9.9 36.6 10.7 8.4 6.3 4.4 29.9 32.6 41.8 44.9 60.1 63.0 81.4 267.8 85.5 69.1 54.7 41.5 11.2 12.2 16.1 17.2 23.7 24.7 32.3 112.2 33.4 26.1 19.8 14.3 41.1 44.8 57.8 62.2 83.8 87.8 113.9 379.0 119.7 96.3 75.8 57.7 46.4 2586

75 13.0 2.4 2.7 3.9 4.3 6.3 6.8 9.4 34.9 10.2 8.1 6.1 4.2 28.8 31.4 40.3 43.4 58.1 61.0 78.9 259.7 83.0 67.2 53.2 40.4 10.9 11.9 15.7 16.8 23.1 24.1 31.6 109.7 32.7 25.5 19.4 13.7 39.5 43.2 55.7 60.1 81.0 85.0 110.4 367.5 116.2 93.6 73.7 55.4 46.4 2507

76 12.0 2.2 2.5 3.6 4.1 6.0 6.4 8.9 33.2 9.8 7.7 5.8 4.0 27.6 30.2 38.8 41.8 56.1 58.9 76.3 251.6 80.5 65.2 51.7 39.3 10.6 11.6 15.3 16.4 22.6 23.5 30.9 107.2 31.9 25.0 18.9 13.4 37.9 41.5 53.7 57.9 78.2 82.1 106.8 356.0 112.6 90.8 71.6 53.9 46.4 2429

77 11.0 2.0 2.3 3.4 3.8 5.6 6.1 8.4 31.4 9.3 7.3 5.5 3.8 26.5 29.0 37.3 40.3 54.1 56.9 73.8 243.4 78.0 63.2 50.2 38.2 10.3 11.3 14.9 16.0 22.0 22.9 30.1 104.8 31.2 24.4 18.5 13.2 37.1 39.8 51.6 55.8 75.4 79.3 103.3 344.6 109.1 88.1 69.5 52.3 46.4 2351

78 10.0 1.8 2.1 3.1 3.5 5.2 5.7 7.9 29.7 8.8 7.0 5.3 3.7 25.3 27.8 35.8 38.7 52.1 54.9 71.2 235.3 75.5 61.2 48.7 37.0 10.0 11.0 14.5 15.6 21.4 22.4 29.4 102.3 30.5 23.9 18.1 12.9 36.3 39.0 49.5 53.6 72.6 76.5 99.7 333.1 105.6 85.3 67.4 50.8 46.4 2275

79 9.0 1.6 1.9 2.8 3.2 4.8 5.3 7.4 27.9 8.3 6.6 5.0 3.5 24.2 26.6 34.3 37.2 50.1 52.8 68.7 227.2 72.9 59.3 47.1 35.9 9.7 10.6 14.1 15.1 20.9 21.8 28.7 99.8 29.8 23.3 17.7 12.6 35.5 38.2 48.5 51.5 69.8 73.6 96.1 321.6 102.1 82.6 65.2 49.2 46.4 2199

80 8.0 1.5 1.7 2.6 3.0 4.5 4.9 6.9 26.2 7.8 6.2 4.8 3.3 23.0 25.4 32.8 35.6 48.1 50.8 66.1 219.1 70.4 57.3 45.6 34.8 9.4 10.3 13.7 14.7 20.3 21.2 27.9 97.3 29.0 22.8 17.3 12.3 34.7 37.4 47.5 50.4 67.0 70.8 92.6 310.1 98.6 79.8 63.1 47.7 46.4 2125

81 7.0 1.3 1.6 2.3 2.7 4.1 4.6 6.4 24.4 7.3 5.9 4.5 3.1 21.9 24.2 31.3 34.1 46.1 48.8 63.6 211.0 67.9 55.3 44.1 33.7 9.1 10.0 13.3 14.3 19.8 20.6 27.2 94.8 28.3 22.2 16.9 12.0 34.0 36.5 46.4 49.3 65.6 68.0 89.0 298.6 95.0 77.0 61.0 46.2 46.4 2052

82 6.0 1.1 1.4 2.1 2.4 3.7 4.2 5.9 22.7 6.8 5.5 4.2 3.0 20.7 22.9 29.8 32.5 44.1 46.7 61.0 202.9 65.4 53.3 42.6 32.5 8.9 9.7 12.9 13.9 19.2 20.1 26.5 92.3 27.6 21.7 16.5 11.7 33.2 35.7 45.4 48.3 64.2 66.6 85.4 287.1 91.5 74.3 58.9 44.6 46.4 1980

83 5.0 0.9 1.2 1.8 2.2 3.4 3.8 5.4 20.9 6.3 5.1 4.0 2.8 19.6 21.7 28.3 31.0 42.1 44.7 58.5 194.8 62.9 51.4 41.0 31.4 8.6 9.4 12.5 13.5 18.6 19.5 25.7 89.8 26.9 21.1 16.1 11.4 32.4 34.9 44.4 47.2 62.8 65.2 83.7 275.6 88.0 71.5 56.8 43.1 46.4 1910

84 4.0 0.7 1.0 1.6 1.9 3.0 3.4 4.9 19.2 5.9 4.8 3.7 2.6 18.4 20.5 26.9 29.4 40.1 42.7 56.0 186.6 60.4 49.4 39.5 30.3 8.3 9.1 12.1 13.0 18.1 18.9 25.0 87.3 26.1 20.5 15.6 11.2 31.6 34.0 43.4 46.1 61.4 63.7 81.9 269.9 84.5 68.8 54.7 41.5 46.4 1846


Page 78 of 100

Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

85 3.0 0.5 0.8 1.3 1.6 2.6 3.0 4.4 17.5 5.4 4.4 3.4 2.4 17.3 19.3 25.4 27.9 38.1 40.6 53.4 178.5 57.9 47.4 38.0 29.2 8.0 8.8 11.7 12.6 17.5 18.3 24.3 84.8 25.4 20.0 15.2 10.9 30.8 33.2 42.3 45.1 60.0 62.3 80.1 264.2 82.7 66.0 52.6 40.0 46.4 1783

86 2.0 0.4 0.6 1.0 1.4 2.2 2.7 4.0 15.7 4.9 4.0 3.2 2.3 16.1 18.1 23.9 26.3 36.1 38.6 50.9 170.4 55.3 45.4 36.5 28.1 7.7 8.5 11.3 12.2 16.9 17.8 23.5 82.3 24.7 19.4 14.8 10.6 30.0 32.4 41.3 44.0 58.6 60.9 78.3 258.4 81.0 64.7 50.5 38.5 46.4 1722

87 1.0 0.2 0.4 0.8 1.1 1.9 2.3 3.5 14.0 4.4 3.7 2.9 2.1 15.0 16.9 22.4 24.8 34.1 36.6 48.3 162.3 52.8 43.5 35.0 26.9 7.4 8.1 10.9 11.8 16.4 17.2 22.8 79.8 24.0 18.9 14.4 10.3 29.2 31.5 40.3 42.9 57.2 59.5 76.5 252.7 79.2 63.3 49.5 36.9 46.4 1662

88 0.5 0.1 0.2 0.5 0.8 1.5 1.9 3.0 12.2 3.9 3.3 2.6 1.9 13.8 15.7 20.9 23.2 32.1 34.5 45.8 154.2 50.3 41.5 33.4 25.8 7.1 7.8 10.5 11.4 15.8 16.6 22.0 77.3 23.2 18.3 14.0 10.0 28.4 30.7 39.2 41.8 55.8 58.1 74.8 246.9 77.4 61.9 48.4 36.2 46.4 1603

89 0.0 0.0 0.1 0.3 0.5 1.1 1.5 2.5 10.5 3.4 2.9 2.4 1.8 12.7 14.5 19.4 21.7 30.1 32.5 43.2 146.1 47.8 39.5 31.9 24.7 6.8 7.5 10.1 10.9 15.2 16.1 21.3 74.8 22.5 17.8 13.6 9.7 27.6 29.9 38.2 40.8 54.4 56.7 73.0 241.2 75.7 60.5 47.4 35.4 46.4 1544

90 0.0 0.0 0.0 0.1 0.3 0.7 1.1 2.0 8.7 2.9 2.6 2.1 1.6 11.5 13.3 17.9 20.1 28.1 30.5 40.7 138.0 45.3 37.5 30.4 23.6 6.5 7.2 9.7 10.5 14.7 15.5 20.6 72.3 21.8 17.2 13.2 9.4 26.8 29.1 37.2 39.7 53.1 55.2 71.2 235.4 73.9 59.2 46.3 34.6 46.4 1485

91 0.0 0.0 0.0 0.0 0.1 0.4 0.8 1.5 7.0 2.4 2.2 1.9 1.4 10.4 12.1 16.4 18.6 26.0 28.5 38.2 129.8 42.8 35.6 28.9 22.4 6.2 6.9 9.3 10.1 14.1 14.9 19.8 69.8 21.1 16.7 12.8 9.2 26.1 28.2 36.1 38.6 51.7 53.8 69.4 229.7 72.2 57.8 45.3 33.9 46.4 1427

92 0.0 0.0 0.0 0.0 0.0 0.2 0.4 1.0 5.2 2.0 1.8 1.6 1.2 9.2 10.9 14.9 17.0 24.0 26.4 35.6 121.7 40.2 33.6 27.4 21.3 5.9 6.6 8.9 9.7 13.5 14.3 19.1 67.3 20.3 16.1 12.4 8.9 25.3 27.4 35.1 37.5 50.3 52.4 67.6 224.0 70.4 56.4 44.2 33.1 46.4 1369

93 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.5 3.5 1.5 1.5 1.3 1.1 8.1 9.7 13.4 15.5 22.0 24.4 33.1 113.6 37.7 31.6 25.8 20.2 5.6 6.3 8.5 9.3 13.0 13.8 18.4 64.9 19.6 15.6 11.9 8.6 24.5 26.6 34.1 36.5 48.9 51.0 65.9 218.2 68.6 55.0 43.1 32.3 46.4 1311

94 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.7 1.0 1.1 1.1 0.9 6.9 8.5 11.9 13.9 20.0 22.4 30.5 105.5 35.2 29.6 24.3 19.1 5.3 6.0 8.1 8.8 12.4 13.2 17.6 62.4 18.9 15.0 11.5 8.3 23.7 25.7 33.0 35.4 47.5 49.6 64.1 212.5 66.9 53.7 42.1 31.5 46.4 1253

95 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 0.5 0.7 0.8 0.7 5.8 7.3 10.4 12.4 18.0 20.3 28.0 97.4 32.7 27.7 22.8 18.0 5.0 5.6 7.7 8.4 11.9 12.6 16.9 59.9 18.1 14.4 11.1 8.0 22.9 24.9 32.0 34.3 46.1 48.2 62.3 206.7 65.1 52.3 41.0 30.8 46.4 1197

96 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.5 0.5 4.6 6.0 9.0 10.8 16.0 18.3 25.4 89.3 30.2 25.7 21.3 16.8 4.7 5.3 7.3 8.0 11.3 12.0 16.2 57.4 17.4 13.9 10.7 7.7 22.1 24.1 31.0 33.3 44.7 46.7 60.5 201.0 63.4 50.9 40.0 30.0 46.4 1141

97 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.4 3.5 4.8 7.5 9.3 14.0 16.3 22.9 81.2 27.7 23.7 19.8 15.7 4.4 5.0 6.9 7.6 10.7 11.5 15.4 54.9 16.7 13.3 10.3 7.4 21.3 23.2 29.9 32.2 43.3 45.3 58.7 195.2 61.6 49.5 38.9 29.2 46.4 1086

98 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 2.3 3.6 6.0 7.7 12.0 14.2 20.4 73.0 25.2 21.7 18.2 14.6 4.1 4.7 6.4 7.2 10.2 10.9 14.7 52.4 16.0 12.8 9.9 7.2 20.5 22.4 28.9 31.1 41.9 43.9 57.0 189.5 59.8 48.2 37.9 28.5 46.4 1032

99 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.2 2.4 4.5 6.2 10.0 12.2 17.8 64.9 22.6 19.8 16.7 13.5 3.8 4.4 6.0 6.7 9.6 10.3 14.0 49.9 15.2 12.2 9.5 6.9 19.7 21.6 27.9 30.0 40.5 42.5 55.2 183.8 58.1 46.8 36.8 27.7 46.4 977

100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.2 3.0 4.7 8.0 10.2 15.3 56.8 20.1 17.8 15.2 12.3 3.5 4.1 5.6 6.3 9.0 9.7 13.2 47.4 14.5 11.7 9.1 6.6 19.0 20.8 26.8 29.0 39.1 41.1 53.4 178.0 56.3 45.4 35.8 26.9 46.4 924

101 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1.5 3.1 6.0 8.1 12.7 48.7 17.6 15.8 13.7 11.2 3.2 3.8 5.2 5.9 8.5 9.2 12.5 44.9 13.8 11.1 8.6 6.3 18.2 19.9 25.8 27.9 37.7 39.7 51.6 172.3 54.6 44.0 34.7 26.2 46.4 871

102 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.6 4.0 6.1 10.2 40.6 15.1 13.8 12.2 10.1 3.0 3.4 4.8 5.5 7.9 8.6 11.8 42.4 13.1 10.6 8.2 6.0 17.4 19.1 24.8 26.8 36.3 38.2 49.8 166.5 52.8 42.7 33.7 25.4 46.4 819

103 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.0 4.1 7.6 32.5 12.6 11.9 10.6 9.0 2.7 3.1 4.4 5.1 7.3 8.0 11.0 39.9 12.3 10.0 7.8 5.7 16.6 18.3 23.7 25.7 34.9 36.8 48.1 160.8 51.0 41.3 32.6 24.6 46.4 769

104 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.0 5.1 24.3 10.1 9.9 9.1 7.9 2.4 2.8 4.0 4.6 6.8 7.5 10.3 37.4 11.6 9.4 7.4 5.4 15.8 17.4 22.7 24.7 33.5 35.4 46.3 155.1 49.3 39.9 31.6 23.9 46.4 721

105 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.5 16.2 7.6 7.9 7.6 6.7 2.1 2.5 3.6 4.2 6.2 6.9 9.6 34.9 10.9 8.9 7.0 5.2 15.0 16.6 21.7 23.6 32.1 34.0 44.5 149.3 47.5 38.5 30.5 23.1 46.4 674

106 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 8.1 5.0 5.9 6.1 5.6 1.8 2.2 3.2 3.8 5.6 6.3 8.8 32.4 10.2 8.3 6.6 4.9 14.2 15.8 20.6 22.5 30.7 32.6 42.7 143.6 45.8 37.2 29.5 22.3 46.4 630

107 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.1 2.5 4.0 4.6 4.5 1.5 1.9 2.8 3.4 5.1 5.7 8.1 29.9 9.4 7.8 6.2 4.6 13.4 14.9 19.6 21.5 29.3 31.2 40.9 137.8 44.0 35.8 28.4 21.5 46.4 591

108 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 2.0 3.0 3.4 1.2 1.6 2.4 2.9 4.5 5.2 7.4 27.4 8.7 7.2 5.8 4.3 12.6 14.1 18.6 20.4 27.9 29.7 39.2 132.1 42.2 34.4 27.4 20.8 46.4 554

109 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.5 2.2 0.9 1.3 2.0 2.5 4.0 4.6 6.6 24.9 8.0 6.7 5.4 4.0 11.8 13.3 17.6 19.3 26.5 28.3 37.4 126.3 40.5 33.0 26.3 20.0 46.4 522

110 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.1 0.6 0.9 1.6 2.1 3.4 4.0 5.9 22.5 7.3 6.1 4.9 3.7 11.1 12.5 16.5 18.2 25.1 26.9 35.6 120.6 38.7 31.6 25.3 19.2 46.4 493

111 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 0.3 0.6 1.2 1.7 2.8 3.4 5.1 20.0 6.5 5.6 4.5 3.4 10.3 11.6 15.5 17.2 23.7 25.5 33.8 114.9 37.0 30.3 24.2 18.5 46.4 464

112 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.8 1.3 2.3 2.9 4.4 17.5 5.8 5.0 4.1 3.2 9.5 10.8 14.5 16.1 22.3 24.1 32.0 109.1 35.2 28.9 23.2 17.7 46.4 437

113 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.8 1.7 2.3 3.7 15.0 5.1 4.4 3.7 2.9 8.7 10.0 13.4 15.0 20.9 22.7 30.3 103.4 33.4 27.5 22.1 16.9 46.4 411

114 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 1.1 1.7 2.9 12.5 4.4 3.9 3.3 2.6 7.9 9.1 12.4 13.9 19.5 21.2 28.5 97.6 31.7 26.1 21.1 16.2 46.4 385

115 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.6 1.2 2.2 10.0 3.6 3.3 2.9 2.3 7.1 8.3 11.4 12.9 18.2 19.8 26.7 91.9 29.9 24.8 20.0 15.4 46.4 359

116 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.6 1.5 7.5 2.9 2.8 2.5 2.0 6.3 7.5 10.3 11.8 16.8 18.4 24.9 86.1 28.2 23.4 18.9 14.6 46.4 334

117 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.7 5.0 2.2 2.2 2.1 1.7 5.5 6.6 9.3 10.7 15.4 17.0 23.1 80.4 26.4 22.0 17.9 13.9 46.4 309

118 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.5 1.5 1.7 1.7 1.4 4.7 5.8 8.3 9.7 14.0 15.6 21.4 74.7 24.6 20.6 16.8 13.1 46.4 285

119 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 0.7 1.1 1.2 1.1 4.0 5.0 7.2 8.6 12.6 14.2 19.6 68.9 22.9 19.3 15.8 12.3 46.4 262

120 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.6 0.8 0.9 3.2 4.2 6.2 7.5 11.2 12.8 17.8 63.2 21.1 17.9 14.7 11.5 46.4 240

121 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.4 0.6 2.4 3.3 5.2 6.4 9.8 11.3 16.0 57.4 19.4 16.5 13.7 10.8 46.4 220

122 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 1.6 2.5 4.1 5.4 8.4 9.9 14.2 51.7 17.6 15.1 12.6 10.0 46.4 200

123 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.8 1.7 3.1 4.3 7.0 8.5 12.5 45.9 15.8 13.8 11.6 9.2 46.4 181

124 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.8 2.1 3.2 5.6 7.1 10.7 40.2 14.1 12.4 10.5 8.5 46.4 162

125 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.0 2.2 4.2 5.7 8.9 34.5 12.3 11.0 9.5 7.7 46.4 144

126 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.1 2.8 4.3 7.1 28.7 10.6 9.6 8.4 6.9 46.4 126

127 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.4 2.8 5.3 23.0 8.8 8.3 7.4 6.2 46.4 110

128 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.4 3.6 17.2 7.0 6.9 6.3 5.4 46.4 95


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Time (Hour)

UH (m³/s) ERH(cm)

Base Flow

(m³/s)

Flood Hydrograph

(m³/s)

129 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.8 11.5 5.3 5.5 5.3 4.6 46.4 81

130 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 5.7 3.5 4.1 4.2 3.9 46.4 69

131 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.9 1.8 2.8 3.2 3.1 46.4 60

132 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 1.4 2.1 2.3 46.4 53

133 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.1 1.5 46.4 50

134 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.8 46.4 48

135 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 46.4 47

136 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 46.4 46


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Page 81 of 100

Annexure V Computations of Channel Routing for Maithon Dam Catchment using Muskingum method

Reach RR1 Length (km) 73.4 K= 8.2 No. of steps= 7 X= 0.2 K for sub-reach= 1.2 ΔT 1.0 C₀= 0.186 C₁= 0.512 C₂= 0.302 Σ 1.000

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

Routing Through

Step6 (m³/s)

Routing Through

Step7 (m³/s)

0 41 41 41 41 41 41 41 41 1 41 41 41 41 41 41 41 41 2 42 41 41 41 41 41 41 41 3 43 42 41 41 41 41 41 41 4 45 43 42 41 41 41 41 41 5 48 45 43 42 41 41 41 41 6 51 48 45 43 42 41 41 41 7 56 51 47 45 43 42 42 41 8 66 57 51 47 45 43 42 42 9 77 65 56 51 47 45 43 42

10 89 75 64 56 51 47 45 43 11 103 87 74 64 56 50 47 45 12 118 101 86 73 63 55 50 47 13 137 116 99 84 72 62 55 50 14 162 135 114 97 83 71 62 55 15 192 159 133 113 96 82 70 61 16 230 189 157 131 111 94 80 69 17 278 226 186 154 129 109 93 79 18 336 273 223 183 152 127 107 91 19 405 330 268 219 180 150 125 106 20 510 402 324 263 215 177 147 123 21 626 499 396 319 259 211 174 145 22 752 611 488 389 313 254 208 171 23 892 735 596 477 382 308 250 204


Page 82 of 100

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

Routing Through

Step6 (m³/s)

Routing Through

Step7 (m³/s)

24 1040 872 718 582 467 375 302 245 25 1192 1018 852 701 569 458 368 297 26 1343 1168 994 832 684 556 448 361 27 1493 1318 1142 972 812 668 543 439 28 1646 1469 1292 1117 949 793 653 531 29 1816 1624 1443 1266 1093 928 775 638 30 1995 1792 1599 1417 1241 1069 907 757 31 2178 1968 1765 1574 1392 1216 1046 887 32 2378 2152 1939 1738 1548 1367 1192 1024 33 2572 2346 2122 1911 1712 1523 1342 1168 34 2756 2538 2312 2092 1883 1685 1497 1317 35 2923 2721 2502 2280 2063 1855 1659 1471 36 3079 2891 2685 2468 2248 2033 1828 1632 37 3208 3046 2856 2650 2434 2216 2004 1800 38 3274 3171 3011 2821 2615 2400 2185 1974 39 3276 3243 3135 2976 2786 2581 2367 2154 40 3250 3261 3213 3101 2940 2751 2546 2335 41 3218 3247 3244 3184 3067 2906 2717 2513 42 3180 3220 3241 3225 3156 3034 2871 2683 43 3144 3185 3220 3232 3205 3127 3001 2837 44 3131 3154 3190 3218 3222 3184 3099 2969 45 3125 3137 3162 3194 3215 3209 3163 3071 46 3125 3129 3143 3168 3195 3209 3195 3140 47 3131 3127 3133 3149 3173 3196 3202 3180 48 3142 3132 3130 3137 3154 3176 3194 3194 49 3159 3142 3133 3133 3141 3159 3179 3191 50 3165 3155 3142 3134 3136 3146 3162 3180 51 3160 3161 3152 3141 3136 3139 3150 3165 52 3152 3159 3158 3150 3141 3138 3142 3153 53 3151 3154 3158 3156 3148 3142 3140 3145 54 3152 3152 3155 3157 3153 3147 3142 3142 55 3152 3152 3153 3155 3155 3152 3146 3143 56 3159 3153 3153 3154 3155 3154 3151 3146 57 3161 3158 3154 3153 3154 3155 3153 3150 58 3158 3160 3157 3154 3154 3154 3154 3152 59 3146 3156 3158 3156 3154 3154 3154 3154 60 3127 3146 3155 3157 3156 3155 3154 3154 61 3095 3127 3145 3154 3156 3155 3155 3154 62 3027 3092 3126 3144 3153 3155 3155 3155 63 2924 3027 3091 3125 3143 3152 3155 3155 64 2804 2933 3029 3090 3124 3142 3151 3154


Page 83 of 100

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

Routing Through

Step6 (m³/s)

Routing Through

Step7 (m³/s)

65 2678 2819 2941 3032 3090 3123 3142 3150 66 2548 2696 2834 2949 3034 3090 3123 3141 67 2417 2568 2715 2848 2957 3037 3090 3122 68 2289 2439 2590 2733 2860 2964 3040 3091 69 2166 2311 2462 2610 2749 2872 2970 3043 70 2047 2188 2335 2484 2630 2765 2882 2976 71 1940 2070 2211 2358 2505 2648 2779 2892 72 1838 1960 2093 2235 2380 2526 2666 2793 73 1744 1857 1982 2116 2258 2403 2547 2683 74 1654 1761 1878 2004 2139 2280 2424 2566 75 1566 1670 1780 1899 2026 2162 2303 2445 76 1481 1582 1688 1800 1920 2048 2184 2325 77 1398 1496 1599 1706 1819 1941 2070 2206 78 1315 1412 1512 1616 1724 1839 1962 2092 79 1233 1329 1428 1528 1633 1743 1859 1983 80 1151 1247 1344 1443 1545 1650 1761 1879 81 1071 1165 1262 1359 1459 1561 1668 1780 82 994 1085 1180 1277 1375 1475 1578 1686 83 921 1008 1100 1195 1292 1390 1491 1595 84 850 934 1023 1115 1210 1307 1406 1507 85 782 863 948 1037 1130 1225 1322 1422 86 717 795 876 962 1052 1145 1240 1338 87 656 729 808 890 977 1067 1160 1255 88 605 669 742 821 904 991 1081 1175 89 559 616 681 755 834 918 1005 1096 90 515 568 627 694 768 848 932 1020 91 474 523 578 639 707 781 861 946 92 436 482 533 588 650 719 795 875 93 399 443 490 542 599 662 732 808 94 365 406 451 499 551 609 674 744 95 336 372 414 459 508 561 620 686 96 309 342 379 421 467 517 571 631 97 284 314 348 386 429 475 526 581 98 261 289 320 355 393 436 484 535 99 239 265 294 326 361 401 444 492

100 219 243 270 299 332 368 408 452 101 201 223 248 275 305 338 375 416 102 182 204 227 252 280 310 344 382 103 165 186 208 231 257 285 316 351 104 147 168 189 211 235 262 290 322 105 131 150 171 193 215 240 266 296


Page 84 of 100

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

Routing Through

Step6 (m³/s)

Routing Through

Step7 (m³/s)

106 114 134 154 174 196 219 244 271 107 99 117 137 157 178 200 223 249 108 85 102 121 140 160 181 204 228 109 72 88 105 124 143 164 185 208 110 60 75 91 108 127 146 167 189 111 50 63 77 94 111 130 150 170 112 46 53 66 80 97 114 133 153 113 43 48 56 68 83 100 117 136 114 42 44 50 59 71 86 103 120 115 41 42 46 52 61 74 89 106 116 41 41 43 47 54 64 77 92 117 41 41 42 44 49 56 66 79 118 41 41 41 42 45 50 58 69 119 41 41 41 42 43 46 52 60 120 41 41 41 41 42 44 48 54 121 41 41 41 41 41 42 45 49 122 41 41 41 41 41 42 43 46 123 41 41 41 41 41 41 42 44 124 41 41 41 41 41 41 42 42 125 41 41 41 41 41 41 41 42 126 41 41 41 41 41 41 41 41


Page 85 of 100

Reach RR2 Length (km) 53.0 K= 5.9 No. of steps= 5 X= 0.2 K for sub-reach= 1.2 Delta T 1.0 C₀= 0.183 C₁= 0.510 C₂= 0.307 Σ 1.000

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

0 121 121 121 121 121 121 1 121 121 121 121 121 121 2 122 121 121 121 121 121 3 124 122 121 121 121 121 4 127 124 122 121 121 121 5 131 127 124 122 121 121 6 136 131 127 124 122 121 7 143 136 130 126 124 122 8 155 143 135 130 126 124 9 169 154 142 135 130 126

10 184 167 153 142 135 130 11 201 182 165 152 142 134 12 219 198 180 164 151 141 13 241 217 196 178 162 150 14 269 239 214 194 176 161 15 303 266 236 212 192 174 16 343 299 263 234 210 190 17 391 338 295 260 231 208 18 447 385 333 291 257 229 19 513 440 379 329 288 254 20 607 508 434 374 324 284 21 713 596 502 428 369 320 22 829 699 586 495 422 364 23 957 813 685 576 487 416 24 1097 938 797 672 566 480 25 1247 1076 920 781 660 557 26 1412 1225 1055 902 766 648


Page 86 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

27 1593 1388 1203 1035 885 752 28 1791 1566 1364 1181 1016 868 29 2005 1761 1540 1340 1160 997 30 2237 1973 1732 1514 1317 1138 31 2481 2201 1941 1704 1488 1293 32 2742 2443 2165 1909 1675 1463 33 3011 2699 2405 2131 1878 1647 34 3288 2966 2658 2367 2097 1847 35 3572 3241 2922 2617 2330 2063 36 3862 3524 3195 2879 2577 2294 37 4158 3812 3476 3150 2836 2538 38 4456 4106 3763 3429 3105 2794 39 4759 4404 4056 3714 3382 3060 40 5066 4707 4353 4005 3666 3335 41 5378 5013 4654 4302 3956 3617 42 5695 5324 4960 4602 4251 3906 43 6004 5638 5270 4907 4550 4200 44 6307 5947 5582 5216 4854 4499 45 6587 6248 5891 5526 5162 4802 46 6839 6529 6190 5834 5471 5108 47 7062 6785 6472 6132 5777 5416 48 7244 7010 6730 6415 6075 5721 49 7391 7199 6959 6676 6359 6019 50 7487 7350 7153 6908 6621 6303 51 7544 7455 7309 7106 6856 6566 52 7572 7522 7423 7268 7059 6805 53 7586 7559 7498 7389 7226 7012 54 7595 7579 7544 7473 7354 7184 55 7605 7592 7571 7527 7447 7319 56 7616 7603 7588 7561 7509 7419 57 7630 7614 7600 7582 7549 7489 58 7646 7628 7613 7597 7574 7535 59 7664 7644 7626 7610 7592 7566 60 7680 7660 7641 7624 7607 7587 61 7700 7678 7658 7639 7622 7604 62 7716 7696 7675 7655 7637 7619 63 7726 7711 7692 7672 7653 7634 64 7733 7723 7708 7689 7669 7650 65 7736 7730 7720 7704 7686 7666 66 7741 7735 7728 7716 7701 7682 67 7736 7738 7734 7725 7713 7697


Page 87 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

68 7718 7733 7736 7731 7723 7710 69 7685 7717 7731 7734 7729 7720 70 7634 7685 7715 7729 7731 7727 71 7564 7637 7685 7714 7727 7729 72 7468 7569 7639 7686 7713 7725 73 7348 7477 7573 7641 7686 7712 74 7192 7359 7485 7578 7643 7686 75 7007 7209 7370 7492 7582 7645 76 6798 7030 7225 7381 7499 7586 77 6578 6829 7053 7242 7392 7506 78 6353 6614 6858 7075 7257 7402 79 6130 6392 6648 6886 7096 7272 80 5912 6170 6430 6681 6913 7117 81 5700 5952 6210 6466 6713 6939 82 5494 5739 5992 6249 6502 6743 83 5294 5533 5779 6032 6287 6537 84 5100 5332 5571 5818 6071 6324 85 4914 5137 5369 5610 5858 6109 86 4736 4950 5174 5407 5649 5896 87 4561 4769 4985 5211 5445 5687 88 4390 4593 4803 5021 5248 5483 89 4222 4421 4626 4838 5057 5285 90 4058 4253 4453 4659 4872 5093 91 3897 4088 4284 4486 4693 4907 92 3739 3927 4119 4316 4518 4726 93 3585 3768 3957 4149 4347 4551 94 3435 3614 3798 3987 4180 4379 95 3290 3463 3642 3827 4017 4211 96 3149 3317 3491 3671 3857 4047 97 3014 3176 3345 3520 3700 3886 98 2884 3040 3203 3372 3548 3729 99 2758 2909 3066 3230 3400 3577

100 2636 2782 2934 3092 3257 3428 101 2518 2659 2806 2959 3118 3284 102 2408 2541 2682 2830 2984 3144 103 2301 2429 2564 2706 2855 3009 104 2198 2321 2451 2587 2730 2879 105 2098 2217 2342 2472 2610 2753 106 2001 2117 2237 2363 2494 2633 107 1906 2019 2136 2257 2384 2516 108 1813 1924 2037 2155 2277 2405


Page 88 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

109 1722 1830 1941 2056 2174 2297 110 1633 1739 1848 1959 2074 2194 111 1545 1649 1756 1865 1977 2093 112 1459 1561 1666 1773 1883 1995 113 1375 1475 1578 1682 1790 1900 114 1293 1390 1491 1594 1699 1807 115 1213 1308 1406 1507 1610 1716 116 1136 1228 1324 1422 1523 1627 117 1061 1151 1243 1339 1438 1539 118 989 1076 1165 1258 1354 1454 119 922 1003 1090 1180 1273 1370 120 858 935 1017 1104 1195 1289 121 798 870 948 1031 1119 1210 122 746 811 883 962 1045 1133 123 697 757 823 896 975 1059 124 652 707 768 835 909 989 125 611 662 718 779 848 923 126 577 620 671 728 791 860 127 546 585 629 681 739 803 128 517 553 593 638 691 750 129 490 523 560 601 648 701 130 463 495 529 567 609 657 131 437 468 501 535 574 617 132 412 442 473 506 542 581 133 387 417 447 479 512 548 134 364 392 421 452 484 518 135 341 368 396 426 457 490 136 319 345 373 401 431 462 137 297 323 349 377 406 436 138 277 301 327 354 382 411 139 257 281 305 331 358 386 140 238 261 285 309 335 363 141 220 242 265 289 314 340 142 203 224 246 269 293 318 143 187 206 227 249 272 297 144 172 190 210 231 253 276 145 158 175 193 213 234 257 146 148 161 178 197 217 238 147 139 150 164 181 200 220 148 132 141 153 167 184 203 149 126 134 143 156 170 188


Page 89 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

150 124 128 136 146 158 174 151 122 125 130 138 148 161 152 121 123 126 131 140 151 153 121 121 123 127 133 142 154 121 121 122 124 128 135 155 121 121 121 122 125 130 156 121 121 121 121 123 126 157 121 121 121 121 122 124 158 121 121 121 121 121 122 159 121 121 121 121 121 121


Page 90 of 100


Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

0 176 176 176 176 1 176 176 176 176 2 178 176 176 176 3 180 178 176 176 4 183 180 178 177 5 188 183 180 178 6 195 188 183 180 7 204 195 188 183 8 219 204 194 188 9 238 218 204 194

10 260 236 217 203 11 283 257 234 216 12 309 281 255 232 13 341 307 278 252 14 380 339 304 275 15 426 377 335 300 16 482 423 372 331 17 548 478 417 368 18 625 543 471 412 19 719 620 535 465 20 845 714 611 527 21 993 836 705 603 22 1158 980 822 695 23 1342 1142 961 809 24 1538 1322 1120 944 25 1751 1517 1296 1098 26 1976 1727 1488 1270


Page 91 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

27 2207 1949 1694 1459 28 2456 2181 1913 1662 29 2716 2427 2144 1879 30 2981 2684 2387 2107 31 3265 2950 2642 2348 32 3575 3234 2908 2600 33 3913 3542 3190 2865 34 4274 3876 3496 3147 35 4670 4236 3825 3449 36 5087 4626 4182 3775 37 5507 5036 4565 4127 38 5930 5453 4968 4504 39 6348 5873 5381 4902 40 6751 6289 5799 5311 41 7123 6690 6212 5725 42 7449 7061 6611 6136 43 7750 7395 6984 6534 44 8051 7706 7326 6909 45 8362 8012 7646 7257 46 8684 8323 7957 7583 47 9018 8644 8270 7900 48 9355 8975 8590 8215 49 9690 9310 8919 8535 50 10017 9644 9251 8862 51 10316 9967 9583 9193 52 10590 10269 9905 9522 53 10826 10543 10207 9843 54 11011 10780 10484 10146 55 11155 10972 10724 10424 56 11263 11123 10924 10669 57 11345 11239 11083 10875 58 11408 11327 11207 11042 59 11468 11396 11303 11174 60 11525 11458 11379 11277 61 11567 11514 11444 11360 62 11601 11558 11501 11429 63 11622 11592 11547 11487 64 11622 11613 11582 11535 65 11592 11614 11604 11572 66 11521 11584 11605 11594 67 11420 11520 11579 11597


Page 92 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

68 11299 11425 11521 11574 69 11169 11310 11433 11521 70 11037 11184 11325 11440 71 10902 11053 11203 11338 72 10764 10919 11075 11221 73 10621 10781 10942 11095 74 10473 10638 10804 10963 75 10313 10489 10662 10827 76 10134 10329 10513 10685 77 9939 10153 10353 10536 78 9722 9959 10179 10377 79 9480 9743 9987 10204 80 9213 9504 9774 10014 81 8926 9242 9539 9805 82 8624 8959 9281 9573 83 8313 8661 9003 9320 84 7999 8352 8709 9046 85 7686 8040 8405 8757 86 7379 7729 8095 8456 87 7085 7423 7785 8149 88 6799 7127 7480 7840 89 6527 6841 7183 7536 90 6263 6566 6896 7238 91 6008 6301 6619 6950 92 5761 6045 6352 6671 93 5519 5796 6093 6402 94 5283 5553 5843 6142 95 5053 5316 5599 5890 96 4827 5085 5361 5644 97 4607 4859 5128 5405 98 4396 4639 4901 5171 99 4193 4427 4681 4944

100 3994 4222 4467 4722 101 3805 4023 4261 4508 102 3621 3832 4061 4300 103 3443 3648 3869 4099 104 3271 3469 3683 3905 105 3105 3296 3503 3718 106 2946 3129 3329 3537 107 2793 2969 3161 3362 108 2647 2815 3000 3193


Page 93 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

109 2507 2668 2845 3031 110 2375 2528 2697 2875 111 2253 2395 2555 2725 112 2136 2271 2422 2583 113 2027 2154 2296 2448 114 1922 2043 2177 2321 115 1820 1937 2065 2201 116 1722 1835 1958 2087 117 1626 1736 1854 1978 118 1533 1640 1755 1874 119 1442 1546 1658 1774 120 1355 1455 1564 1676 121 1270 1367 1472 1581 122 1191 1283 1384 1490 123 1116 1203 1299 1401 124 1045 1127 1219 1316 125 978 1056 1142 1234 126 916 988 1070 1157 127 858 925 1002 1084 128 805 867 938 1015 129 756 813 879 951 130 712 764 824 891 131 672 719 774 836 132 636 679 729 785 133 604 642 687 738 134 573 609 650 696 135 545 578 616 658 136 517 549 584 623 137 491 521 555 591 138 466 495 527 561 139 441 470 500 532 140 418 445 474 505 141 395 421 450 479 142 373 398 426 454 143 352 376 403 430 144 331 355 380 407 145 312 334 359 385 146 293 315 338 363 147 275 296 318 342 148 258 278 300 322 149 243 261 281 303


Page 94 of 100

Time (Hour) Inflow

Hydrograph (m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

150 229 245 264 285 151 216 231 249 268 152 206 218 234 252 153 197 208 221 237 154 190 199 210 224 155 185 192 201 213 156 181 186 193 203 157 179 182 188 195 158 177 180 183 189 159 177 178 180 185 160 176 177 179 181 161 176 176 177 179 162 176 176 177 178 163 176 176 176 177 164 176 176 176 176


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Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

0 241 241 241 241 241 241 1 241 241 241 241 241 241 2 242 242 241 241 241 241 3 244 243 242 241 241 241 4 248 245 243 242 241 241 5 253 248 245 243 242 241 6 261 253 248 245 243 242 7 271 260 253 248 245 243 8 287 271 260 253 248 245 9 309 286 271 260 253 248

10 336 307 286 270 260 252 11 369 334 306 285 270 259 12 406 365 331 304 284 269 13 450 402 362 329 303 283 14 501 446 399 359 327 302 15 564 497 441 395 356 325 16 637 558 492 437 391 354 17 726 630 552 487 433 388 18 831 717 623 546 482 428 19 956 821 709 616 540 477 20 1116 946 811 700 609 534 21 1306 1101 935 801 692 602 22 1534 1288 1087 924 792 684 23 1791 1509 1269 1072 912 782 24 2077 1761 1485 1251 1058 901 25 2384 2040 1731 1462 1233 1044 26 2713 2343 2005 1702 1439 1216


Page 96 of 100

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

27 3065 2669 2304 1971 1674 1417 28 3428 3015 2625 2265 1938 1647 29 3812 3377 2967 2582 2227 1906 30 4204 3756 3326 2920 2540 2190 31 4612 4147 3702 3276 2874 2499 32 5046 4555 4091 3648 3226 2828 33 5503 4985 4498 4035 3595 3177 34 6004 5443 4926 4441 3980 3543 35 6521 5934 5382 4867 4384 3926 36 7064 6448 5866 5319 4808 4327 37 7613 6984 6376 5799 5257 4749 38 8183 7533 6906 6304 5732 5195 39 8739 8094 7451 6829 6232 5666 40 9286 8650 8007 7370 6753 6161 41 9798 9193 8560 7921 7290 6678 42 10250 9703 9100 8471 7837 7210 43 10646 10161 9609 9009 8383 7753 44 11017 10571 10074 9518 8918 8296 45 11354 10947 10494 9987 9427 8828 46 11690 11296 10878 10415 9901 9338 47 12021 11635 11235 10807 10335 9815 48 12362 11970 11579 11172 10735 10255 49 12716 12312 11918 11521 11107 10662 50 13084 12665 12261 11864 11462 11041 51 13455 13029 12613 12209 11809 11402 52 13822 13397 12974 12560 12156 11753 53 14178 13762 13340 12920 12507 12102 54 14505 14116 13703 13283 12865 12454 55 14805 14445 14055 13644 13226 12810 56 15075 14748 14386 13994 13585 13170 57 15314 15023 14692 14327 13935 13527 58 15531 15268 14970 14635 14268 13876 59 15710 15487 15220 14917 14579 14210 60 15863 15672 15442 15172 14864 14523 61 15980 15828 15633 15397 15123 14811 62 16080 15954 15794 15593 15352 15073 63 16141 16054 15925 15758 15552 15307 64 16175 16122 16028 15895 15723 15511 65 16163 16157 16100 16002 15864 15686 66 16091 16147 16138 16078 15975 15832 67 15965 16084 16133 16119 16055 15947


Page 97 of 100

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

68 15796 15969 16077 16118 16100 16031 69 15585 15808 15971 16069 16103 16080 70 15349 15607 15819 15971 16061 16088 71 15091 15377 15627 15828 15971 16052 72 14824 15126 15404 15645 15836 15970 73 14555 14863 15160 15430 15661 15843 74 14284 14596 14901 15192 15454 15677 75 14012 14326 14636 14938 15222 15477 76 13736 14054 14367 14675 14973 15251 77 13457 13778 14095 14408 14714 15007 78 13169 13498 13820 14137 14448 14751 79 12871 13211 13540 13862 14178 14488 80 12559 12913 13253 13582 13903 14219 81 12232 12603 12956 13295 13624 13945 82 11887 12278 12647 12999 13338 13666 83 11522 11935 12324 12691 13042 13380 84 11138 11573 11983 12369 12735 13085 85 10739 11193 11623 12030 12414 12779 86 10330 10797 11247 11674 12078 12460 87 9918 10392 10855 11300 11724 12125 88 9506 9982 10453 10912 11354 11774 89 9101 9572 10045 10513 10969 11406 90 8706 9167 9637 10108 10573 11025 91 8323 8771 9233 9701 10170 10631 92 7954 8387 8836 9298 9765 10231 93 7605 8018 8452 8902 9362 9828 94 7272 7665 8081 8516 8966 9427 95 6951 7329 7726 8144 8580 9031 96 6641 7005 7386 7787 8207 8644 97 6340 6693 7060 7444 7847 8270 98 6049 6390 6745 7116 7503 7908 99 5767 6098 6441 6799 7171 7561

100 5491 5814 6147 6492 6852 7227 101 5225 5537 5861 6196 6544 6906 102 4966 5269 5583 5909 6246 6596 103 4715 5009 5314 5630 5957 6296 104 4473 4757 5053 5359 5676 6005 105 4240 4514 4800 5096 5404 5723 106 4015 4279 4555 4842 5140 5450 107 3798 4053 4319 4596 4885 5184 108 3588 3835 4091 4359 4638 4928


Page 98 of 100

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

109 3385 3624 3872 4130 4399 4679 110 3191 3420 3659 3909 4168 4439 111 3005 3224 3454 3695 3946 4207 112 2828 3037 3258 3489 3731 3983 113 2660 2859 3069 3291 3524 3767 114 2502 2689 2890 3102 3325 3559 115 2353 2530 2719 2921 3134 3359 116 2213 2379 2558 2749 2952 3167 117 2086 2239 2406 2586 2779 2984 118 1969 2110 2264 2433 2615 2809 119 1858 1990 2133 2290 2460 2644 120 1753 1877 2012 2157 2316 2488 121 1652 1771 1897 2033 2181 2342 122 1558 1670 1790 1918 2056 2205 123 1468 1574 1688 1809 1938 2078 124 1381 1483 1591 1705 1828 1959 125 1300 1396 1499 1608 1724 1847 126 1222 1314 1411 1515 1625 1742 127 1149 1236 1328 1427 1531 1642 128 1081 1162 1250 1343 1442 1547 129 1016 1093 1175 1263 1357 1458 130 956 1028 1105 1188 1277 1372 131 901 967 1039 1118 1202 1291 132 850 911 978 1051 1130 1215 133 804 860 921 989 1063 1143 134 762 812 869 932 1000 1075 135 723 770 821 879 942 1012 136 688 730 778 830 889 953 137 656 695 738 786 839 898 138 626 662 701 745 794 848 139 598 631 668 708 753 803 140 571 603 637 674 715 761 141 545 575 608 642 680 722 142 520 549 580 613 648 687 143 496 524 554 585 618 654 144 472 500 528 558 590 623 145 450 476 504 533 563 595 146 428 454 480 508 537 567 147 408 432 458 484 512 541 148 388 411 436 461 488 516 149 369 391 415 439 465 492


Page 99 of 100

Time (Hour)

Inflow Hydrograph

(m³/s)

Routing Through

Step1 (m³/s)

Routing Through

Step2 (m³/s)

Routing Through

Step3 (m³/s)

Routing Through

Step4 (m³/s)

Routing Through

Step5 (m³/s)

150 350 372 394 418 443 469 151 333 354 375 398 422 447 152 317 336 357 378 401 425 153 303 320 339 360 382 405 154 289 305 323 342 363 385 155 278 292 308 326 345 366 156 269 280 295 311 329 349 157 261 271 283 297 314 332 158 255 263 273 285 300 317 159 250 256 264 275 288 303 160 247 251 258 266 277 290 161 245 248 252 259 268 279 162 243 245 249 254 261 270 163 242 244 246 250 255 263 164 242 243 244 247 251 257 165 241 242 243 245 248 252 166 241 242 242 243 245 248 167 241 241 242 242 244 246 168 241 241 241 242 243 244 169 241 241 241 241 242 243 170 241 241 241 241 242 242 171 241 241 241 241 241 242 172 241 241 241 241 241 241


Page 100 of 100


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