figures - jicabed slope : zero 1/ 2350 1/ 2800 1/ 1120 1/520, 1/280, 1/120 i = 0.0000000 0.0004255...

Figures

Bou Heurtma Dam

Kasseb R.

Kasseb Dam

Sidi Salem Dam

Jedeida

Meje

rda R

�

Sea

(Gulf of Tunis)

Mejez El Bab

Highway

Tessa R.

Mellegue R.

Mellegue Dam

Mellegue2 Dam

Bou Salem

K13

Ghardimaou

El Battane

Tessa Dam

Jendouba

Bou Salem

Rarai R.

Mejez El Bab

Mliz R.

Jendouba

Beja R.

Khalled R.

Slouguia

Zerga R.

Algeria

Alg

eri

a

LEGEND

Figure 4.1.1 Schematic Locations of Major Stream Gauging Stations, Tributaries,

Dams and Cities/Towns

Laroussia Dam

Note:This is a simplified schematic chart.Not all dams and gauging stations arepresented here.

Andalous Bridge

Tobias Dam

El Battane Weir

Chafrou R.

Bajer R.

Sarrath R.

Lahmar R.

El Herri

Rm

el R

.

Ben Metir Dam

Dam (Existing)( ): Year started operation

Dam (Planned)

Dam (under Construction)

Major WL / dischargegauging stations

Major cities/towns

River

Old river course of Mejerda

Testour

Sarrath DamBarbara Dam

flood water

for water supply(non-flood periods)

Bou Heurtma R.

Alg

eri

a

(1954)

(1999)

(1954)

(1976)

(1968)

(1981)Siliana Dam

(1987)

Rmil Dam(2002)

Lakhmes Dam(1966)

(1965)

(1990) (Closed 1990)

(Opened 1953)

Sidi Medien

Jebel Laoudj CoteSiliana R.

Rmil R.

F-1

GAFOUR

SILIANA

MAKTAR

OUESLATIA

EBBA KSOUR

THALA

LE KEF

JENDOUBA

GARDIMAOU

BEJA

BOU SALEM

TESTOUR

JEDEIDA

TUNIS

MEJEZ EL BAB

M E JE

RD

A

H

SI L

I A N

A

ME

LL

EG

UE

SA

R

R AT H

Me s k i a

n a

ME

J E R D A H

M E J E RD A H

T

ESS

A

BE

JA

BOU H E U R TM

A

KA

SS

EB

elK

se

ub

Ksabel Kebir

ch abroP

Haïdra

Z araa

el Kohol

Rem

e l

Me

lsis

Tessae l Am

irel

R oum el

Oussafa

Jebara

Massouje

Lakhm

es

S e j aB enali

Mahdi

el Slima n

elH

adia

Tadjera

Je

d eïd a

Melah

e l Tou b

Ech C hé

Kanana

Mé

r i rel G

ug iua

el Me l a

ez R a gr ou

be

Bourachrach

Ra

yd

So ua

ni

D

ma ine

elm

aidho

ur

Si e rd

Er mel

Tin e

el Bi

ejo

B ou Egou

el K

harrou

ba

Las ouag

Zouar aMe

l a

Fkis

in

e

Bou

A nou

Salsat

Se

cc a

Bo uGnd

e l Ahe la m

B

ouhaja r

Rh

ac

sa Ja

rou

dS

ou

ha

De

ba

Jourmar

el

Die

r i l

el

Kebe

To

urd

a

Masso

u

elA

llao Orf

a

Strah

Zoff

e lA

d

el H

amadia

Ha

ma

dia

Sm

ara

Gu

reB

art

M

efahGue ntata

Mera h e l B

el

Rhedra

Damo

u

Si

Sa

lah

Bo

uSesso

el

Be

r b ag

e

l Bahia

el Ba

ïda

St

Fiedi

el M

elah

Ezz

arga

Melah

Ba

siou

Ain

bouD

a

bb

Na

hola

Jarta

Bav

ad

Ain S ïdBou Pail

AinC

hattl

el H

am

mam

el Zuoum

Tagla

M

eng

oub G

u e radie

B ou Kaia

BouH

arbe

me

lBer

ich

Jedial erre ne

Tagrura

e l Graret

Mougtas

S

oul

Za rzour

St

Men

dir

ez Zana

Mefeje

Cha

rch

ou el Alleg

M

lizel A

hmar

Henares

Guett ed

Feraou

S amchG hrich

Bou Rhara

Fell

M gnassei

Kedim e

Mass i ta

Thib

Ca rrbu

N

ejia

R

mel

En

Memi

ZitounaSo un

ras

Kha

lle

dE R

Mo uc

hel MelahKrilel O

uah

ar

Bouchebi

Ed

Dfa

ll

Ba

ri na

Zarga

Bou N e

Gul

lour

elM

ela

h

elL

outan

t

Zera

Zao

uia

el Har ch

aB

ouK

radr

aBo

uS

baa

Hor

ais

Alle

gue

elR

hrha

el Zao uche

Aiou

el Jourr

Hajar

Rarai

Soutti

Ecnchaay

Krouitra

el Mela

h

el HatobBarer

Zoltaur

Me

lah

Halir

at

Gheib

GhezalaE

s skila

el Kebire l Aled

Zrinaz

M

ena

St

Sa

l ah

el Lil

El l ouhSe mane Bello

uFat hall

el Leb

enel Hammam

Bika

Has

sen

Chelita

Bagrou

h al

Djo

itane

Bard

in

Farfout

el

lil

el

M

a dz

el A

n

mor

Brid

a

Sikrad er

el A zrea el Kso

Oum

Aro uL

aha

mel A

joun

e l Ziloun

Aïn el Hatier

Beuf e

ran

o

el

Rtu

p

Kame lle l

Mou Me b

Bo

u

Di s

Hal l oula

S erdies

F aied el Obb a

Fellah

Z it ounaZ itounaTa

ga

Bo ulata

Mil

lek

Zie

da

el Brad

Ro

ue

la

e l ma

Bou

Sa

leh

Tia

l is

Soudr i

Hantas a

N aoup uss

el Mirta

SangmaJa bia

D ebaxb

i

k

nol

el

Amazö

Lab

i od

el Msire

Fell eo

el Ha

mum

iabouG

oum

Kioussu

Mechale

Muicie

Kr i ta

Gourllacia

Seiarioum

Delia Z arga

Oum teba

Becculla

el Gial

el Ammeje

Izid

el Malah

e l Kambr

a

el Abmar el Mema

el Arel

Chaflou

BouS

oum

t

el M

alah

Hanech

Algérie

La Méditerranée

Tunisie

Figure 4.2.1 River Network in the Mejerda River Basin

N

Legend

River

Basin boundary

International border

F-2

Bed slope : zero 1/ 2350 1/ 2800 1/ 1120 1/520, 1/280, 1/120

i = 0.0000000 0.0004255 0.0003571 0.0008929

Topographic Survey Applied : Survey in 2007 by JICA Study Team

Figure 4.2.2 Present Riverbed Profile and Flow Capacity (Mejerda, Upstream of Sidi Salem)

Flow Capacity (Mejerda, Upstream of Sidi Salem)

En

d o

f S

idi

Sale

m

Reserv

oir

Kasseb

Riv

er

Bo

u S

ale

m

Bo

u H

eu

rtm

a R

iver

Tessa R

iver

Mell

eg

ue R

iver

Jen

do

ub

a

Rara

i R

iver

Gh

ard

imao

u

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

0 20000 40000 60000 80000 100000 120000 140000 160000

Distance from Sidi Salem Reservoir (m)

Dis

ch

arg

e (

m3/s

)

Flow Capacity (enlarged) (Mejerda, Upstream of Sidi Salem)

En

d o

f S

idi

Sale

m

Reserv

oir

Kasseb

Riv

er

Bo

u S

ale

m

Bo

u H

eu

rtm

a R

Tessa R

iver

Mell

eg

ue R

iver

Jen

do

ub

a

Rara

i R

iver

Gh

ard

imao

u

Sid

i Is

mail

0

250

500

750

1000

1250

1500

1750

2000

0 20000 40000 60000 80000 100000 120000 140000 160000


Dis

ch

arg

e (

m3/s

)

Profile : Mejerda, Upstream of Sidi Salem Dam

Kasseb

Riv

er

Bo

u H

eu

rtm

a R

iver

Tessa R

iver

Bo

u S

ale

m

Mell

eg

ue R

iver

Jen

do

ub

a

Rara

i R

iver

Gh

ard

imao

u

En

d o

f S

idi

Sale

m R

eserv

oir

Sid

i Is

mail

100

120

140

160

180

200

220

240

260

0 20000 40000 60000 80000 100000 120000 140000 160000


Ele

vati

on

(m

.NG

T)

Left Bank

Right Bank

Lowest BedLowest Bed

250400 m3/s �500400250-350 200-250Capacity

m3/s

F-3

Bed slope : 1/ 1900 1/ 3000 1/ 2200 1/ 1800 1/ 2500 1/ 2300 1/ 2200

i = 0.0005263 0.0003333 0.0004545 0.0005556 0.0004000 0.0004348 0.0004545

Figure 4.2.3 Present Riverbed Profile and Flow Capacity (Mejerda, Downstream of Sidi Salem)

Flow Capacity of River Channel (Survey in 2007 by MARH)

Bri

dg

e

GP

5

Bri

dg

e P

.An

darr

ou

s,

Meje

z E

l B

ab

El

Batt

an

e w

ei r

Bri

dg

e

Bri

dg

e (

near

Teb

ou

rba)

Bri

dg

e G

P7

Old

bri

dg

e i

n J

ed

eid

a)

Bri

dg

e

Hig

hw

ay

Bri

dg

e

Bri

dg

e G

P8

Bri

dg

e T

ob

ias

Bri

dg

e

Larr

ou

sia

Dam

Sid

i S

ale

m D

am

Estu

ary

El

Herr

i W

eir

& p

um

pin

g

st.

0

400

800

1,200

1,600

2,000

0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000

Distance from Sidi Salem Dam (m)

Dis

ch

arg

e (

m3/s

)

Flow Capacity of River Channel (Survey in 2007 by MARH)

Sid

i S

ale

m D

am

Bri

dg

e G

P5

Co

nf.

wit

h S

ilia

na R

.

Bri

dg

e

El

Batt

an

e w

eir

La

rro

usia

Da

m

To

bia

s M

ob

Da

m

Hig

hw

ay

Bri

dg

e

Bri

dg

e

Bri

dg

e G

P8

Estu

ary

El

Herr

i W

eir

&

pu

mp

ing

st.

Brid

ge P

.An

da

rro

us,

Meje

z E

l B

ab

Bri

dg

e

Old

bri

dg

e i

n J

ed

eid

a

0

100

200

300

400

500

600

700

800

900

1,000

0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000


Dis

ch

arg

e (

m3/s

)

150-200 m3/s400m3/s 250-350 m3/s 300-150m3/s250-300m3/s

Longitudinal Profile of Majerda River (Survey in 2007 by MARH)

Sid

i S

ale

m D

am

Bri

dg

e

GP

5

Co

nf.

wit

h S

ilia

na R

.

Bri

dg

e

El

Batt

an

e w

eir

La

rro

usia

Da

m

To

bia

s M

ob

Da

m

Hig

hw

ay

Bri

dg

e

Bri

dg

e

Bri

dg

e G

P8

Estu

ary

,

El

Herr

i W

eir

& p

um

pin

g s

t.

Brid

ge P

.An

da

rro

us,

Meje

z E

l B

ab

Bri

dg

e

Old

bri

dg

e i

n J

ed

eid

a

-20

0

20

40

60

80

100

120

0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000


Ele

vati

on

(m

.NG

T)

Lowest Bed

River bank

(Left and Right)

F-4

O

.Mejerda

O. Kasseb

O. Bou H eurtm

a

O. Rarai

O. M

elle

gue

O.Te

ss

a

O. Silia

na

O. C

haflo

u

La Méditeranée

Tunisie

Algérie

Legend

Inundated Area of 1973 Flood

Major River

Basin Boundary

International Border

Figure 4.3.2 Inundation Map of 1973 Mar Flood

F-5

Melila

Ben M’Tir

Kasseb

Towns along

Pipeline

Greater

Tunis

Cap

Bon

Medjerda River

Bou

Heurtma

Mellegue

Figure 5.1.1 Schematic Diagram of Dams and Water Transfer Schemes of the Mejerda River Basin

Tessa

Sarrat

Zouitina

BarbaraComplex

Sidi Salem

Mellegue II

El Aroussia

Sahel

Sfax

(Chafrou)

Mateur

Bejaoua

P

R’Mil

Lakhmes

Siliana

Khaled

Cap Bon Canal

Joumine -Sejnane

Pipeline

1.0 m3/s

0.9 m3/s

4.6 m3/s

7.0 m3/s

16.0 m3/s 8.8 m3/s

Beja

5.0 m3/s

3 x 4.0 m3/sDam (existing)

Dam (in

progress)

Dam (proposed)

River

Pipeline

Legend

(Zerga) independent reservoir

F-6

Figure 5.1.2 Schematic Diagram of the Dams and Water Transfer Schemes of the Extreme North

El Kebir

(Zerga)

El Moula

Sidi Barrak Sejnane

Joumine

Bizerte

ZiatineGamgou

m El Harka

P

Douimis

Melah

(Ghezala)

Tine

Mateur

P

P

P

Joumine -Sejnane

Pipeline

3 x 4.0 m3/

s

3 x 4.0 m3/

s

2 x 4.2 m3/

s2.0 m3/s1.4 m3/s

MEDITERRANEAN SEA

0.68 m3/s 0.4 m3/s 2.35 m3/s 4.0 m3/s

1.25 m3/s

0.87 m3/s

Dam

(existing)Dam (in

progress)

Dam (proposed)

River

Pipeline

Legend

(Zerga) independent

reservoir

F-7

Figure 5.5.1 Locations of Sub-catchments in Mejerda River Basin

F-8

Fig

ure 5

.6.1

Ov

era

ll FF

WS

in th

e M

eje

rd

a R

iver B

asin

Instruction

Ministry of Agriculture

Ministry of Interior

DGBGTH

National Disaster Commission

Reporting

Civil Protection

National Security

National Guard

Coordination among representatives of the respective Ministries

Instruction

Instruction

Control

Coordination at Central Level

Regional Disaster Commission

Governorate Office

Regional C.P.

Regional Police

Regional N.G.

Dam

CRDA

IRESADatabase

DGRECall

Center

Data Transmission

Store

Minister of Agriculture

Coordination

Minister of Interior

NationalPolice

Police

WarningWarning

GovernorRequisitionManpower

Equipments

Engines

Buildings

Cooperation at Private Level

Civil volunteers

Summons

Coordination at Regional Level

Technical instruction

AccessC.P. Warning

Announcement

Warning

N.G.

CRDA

Source: Interviews with MARH

F-9

MINISTER OF AGRICULTURE AND

HYDRAULIC RESOURCES (MARH)

STATE SERCRETARY TO THE MINISTRY OF

AGRICULTURE AND HYDRAULIC

RESOURCES IN CHARGE OF FISHERY

SECRETARY GENERALPRINCIPAL PRIVATE SECRETARY

General Direction of

Organisation Computers, the

Management of Documents

and Documentation

General Direction of the

Administrative and Financial

Services

General

Direction

of Judicial

and Land

Affairs

38irection of

Financing,

Investments

and

Professional

Organisms

General

Direction of

Studies and

Agricultural

Development

General

Direction of

Agricultural

Production

General

Direction of

Protection and

the Quality

Control of the

Agricultural

Products

General

Direction of

Veterinary

Services

General

Direction of

Fishery and

Fish

Farming

General

Direction of

Forest

General

Direction of

Development

and

Preservation

of

Agricultural

Lands

General

Direction of

Rural

Engineering

and Water

Exploitation

(DGGREE)

General

Direction of

Water

Resources

(DGRE)

General

Direction of

Dams and

Large

Hydraulic

Works

(DGBGTH)

Regional Services

24 Regional

Commissaries for

Agricultural

Figure 5.8.1 Organizational Structure of Ministry of Agriculture and Hydraulic Resources (MARH)

F-10

Figure 7.2.1 Zone Divisions for Estimate of Basin Average Rainfall (1/3)

Overall Division of Study Area for Flood Control Planning

U1 : Algerian border - Mejerda & Mellegue Conf. (Mejereda)

M : Mellegue & Sarrath Conf. - Mejerda & Mellegue Conf. (Mellegue)

U2 : Mejerda & Mellegue Conf. - Sidi Salem Dam

D1 : Sidi Salem Dam - Larrousia Dam

D2 : Larrousia Dam - Estuary

M

U2 D1

D2

U1

Runoff Zone: HY-M (4561 km2)

Base Point: BP-M Mejerda & Mellegue Conf.

Legend

Runoff directly

drained to the

F-11

Runoff Zone: HY-U1 (1154 km2)

Base Point: BP-U1 Mejerda & Mellegue Conf.

Runoff Zone: HY-U2 (10414 km2)

Base Point: BP-U2 Sidi Salem Dam


Legend

Runoff directly

drained to the

F-12

Runoff Zone: HY-D1 (14172 km2)

Base Point: BP-D1 Larrousia Dam

Runoff Zone: HY-D2t (15645 km2)

Base Point: BP-D2 Estuary


Legend

Runoff directly

drained to the

F-13

AF

- 25

Figure 7.2.2 Basin Division for Runoff Analysis

F-14

Figure 7.2.3 Schematic Diagram of River Network for Probable Flood Computation

HY-AU1

BP-AU1(Ghardimaou)

BP-U1(Mejerda& Mellegue

Conf.)

HY-D2p12

BP-D1(Larrousia)

HY-D2tp13

BP-D2t(Estuary)

HY-**

Legend

Sub-catchment(Natural runoff computed)

BP-**

River reaches

Base point(Hydrograph to be derived)

HY-**Sub catchmentin Algeria

BP-** Base point(Hydrograph given)

BP-** Base point(Not downstream end)

Probable Flood for U1

Design Flood for M

Design Flood for U2

Design Flood for D1 and D2t

HY-U1

Basin average

rainfall applied

HY-U1

HY-M

HY-U2

HY-U2

Selected Seven Dams

HY-AM

BP-AM(Mellegue&

Sarrath Conf.)

BP-M(Mejerda& Mellegue

Conf.)

HY-Mp1HYd-Sr

HY-Mp2

BPd-Sr

BPd-Mg(Mellegue Dam)

HY-AU1

BP-U2(Sidi Salem)

HY-U2p13

BP-AU1(Ghardimaou)

HY-AM

BP-AM(Mellegue&

Sarrath Conf.)

HY-Mp1HYd-Sr

BPd-Sr

BPd-Mg(Mellegue Dam)

BP-U1

(Mejerda& Mellegue

Conf.)

HYd-Bh

BPd-Bh(Bou Heurtma Dam)

HYd-Ts

BPd-Ts(Tessa Dam)

Upstream of the Sidi Salem :

Same to the model for U2

HYd-Sl

BPd-Sl(Siliana Dam)

HY-U2p11

HY-U2p12

HY-U2p11

BP-U2

(Sidi Salem)

F-15

Excess

D : Duration of excess rainD

V / 2

TcvLg

Lg + D/2

Dimensionless Unit Hidrograph

32.5

0.01

0.1

1

10

100

0 100 200 300 400 500 600

% of (Lg + D/2)

log

q x

(L

g+

D/2

)/V

q: Discharge(Lg+D/2) : Lag time (Begining ofexcess rain - 1/2 of total volume ofexcess runoff)V : Volume

(1) Dimensionless unit hydrograph applied

Lg+D/2 can be taken equal to Tcv whenrainfall data availability is limited.

(2) Definition of Tcv and (Lg+D/2)

Figure 7.2.4 Dimensionless Unit Hydrograph

Instead of Lg+D/2 (Time from the centre of the excess rain totime of occurrence of on-half volume of hydrograph, Tcv (timefrom the beginning of rise of net hydrograph to time ofoccurrence of on-half volume of hydrograph) can be applied .The lag time can be explained by the following equation.

Tcv = C x (L x Lca / �Sst)0.38

where; Tcv: Lag time. Time from the beginning of rise of nethydrograph to time of occurrence of on-half volume ofhydrograph . C: Constant, 0.72 for foothill drainage area L: Mainstream length from outlet to watershed Lca: Mainstream length from outlet to watershed centroid Sst: Overall slope of mainstream

F-16

Unit Excess Rain : 10 mm Unit Excess Rain : 10 mm

Unit rainfall duration: 1 hr Unit rainfall duration: 1 hr

qmax : 527 m3/s qmax : 983 m3/s

Runoff Zone : HY-U1 (1154 km2) Runoff Zone : HY-U2p12 (1664 km2)

Base point : BP-U1 Mejerda & Mellgue Conf. Base point : BP-U2up Mejerda & BouH. Conf.



qmax : 653 m3/s qmax : 1053 m3/s

Runoff Zone : HY-U2p13 (1630 km2) Runoff Zone : HY-D2tp11 (1626 km2)

Base point : BP-D2 Sidi Salem Dam Base point : BP-D1up2 Mejerda & Siliana Conf.



qmax : 441 m3/s qmax : 678 m3/s

Runoff Zone : HY-D2tp12 (1092 km2) Runoff Zone : HY-D2tp13 (1473 km2)

Base point : BP-D1 Larrousia Dam Base point : BP-D2 Estuary

Unit Hydrograph

0

100

200

300

400

500

600

0 20 40 60

t (hour)

q (

m3

/s)

0

10

20

30

40

50

60

70

Exc

ess

Ra

in (

mm

)

Excess Rain

Unit Hydrograph

0

200

400

600

800

1000

1200

1400

0 20 40 60

t (hour)

q (

m3

/s)

0

10

20

30

40

50

60

70

Exc

ess

Ra

in (

mm

)

Excess Rain

Unit Hydrograph

0

500

1000

1500

2000

2500

0 20 40 60

t (hour)

q (

m3

/s)

0

10

20

30

40

50

60

70

Exc

ess

Ra

in (

mm

)

Excess Rain

Unit Hydrograph

0

500

1000

1500

2000

2500

0 50 100 150 200

t (hour)

q (

m3

/s)

0

10

20

30

40

50

60

70

Exc

ess

Ra

in (

mm

)

Excess RainUnit Hydrograph

0

500

1000

1500

2000

2500

0 50 100 150 200

t (hour)

q (

m3

/s)

0

10

20

30

40

50

60

70

Exc

ess

Ra

in (

mm

)

Excess Rain

Unit Hydrograph

0

100

200

300

400

500

600

700

0 20 40 60

t (hour)

q (

m3

/s)

0

10

20

30

40

50

60

70

Exc

ess

Ra

in (

mm

)

Excess Rain

Figure 7.2.5 Examples of Unit Hydrographs for Sub-catchment

F-17

Bou Heurtma Dam

Kasseb R.

Sidi Salem Dam

Sea

(Gulf of Tunis)

Highway

Tessa R.

Mellegue R.

Mellegue Dam

Bou Salem

K13

El Battane

Jendouba

Bou Salem

Rarai R.

Mejez El Bab

Mliz R.

Beja R.

Slouguia

Zerga R.

Algeria

Alg

eria

Figure 7.2.6 Probable Discharge Distribution (1/3)

Present Condition : Standard Dam Operation )

Laroussia Dam

Tobias Dam

Chafrou R.

Sarrath R.

Lahmar R.

Jedeida

Mejez El Bab

El Herri

Rm

el R

.

Testour

Bou Heurtma R.

Alg

eria

Siliana Dam

Sid

i Me

die

n

Siliana R.

Rmil R.

Me

jerd

a R

�

Ghardimaou

Bajer R.

Khalled R.

60

10

42

50

23

20

13

30

93

0

53

50

28

00

12

40

68

04

30

57

70

33

00

18

00

60

03

30

Estuary

22

50

18

30

11

50

79

05

20

63

00

41

90

22

60

10

50

68

0

13

20

89

05

20

34

02

10

12

30

85

04

80

31

01

90

24

30

17

30

10

80

75

04

90

16

50

11

80

74

05

10

33

0

66

00

45

30

24

50

15

40

10

40

U1

55

00

30

30

13

00

71

04

90

JendoubaM

U2

D1 & D2

BP

-AM

44

20

33

00

21

20

13

70

93

0

48

60

28

70

12

30

68

04

50

42

30

26

70

11

60

65

04

40

61

00

44

50

28

20

18

80

12

60

Flood Discharge

100-year50-year20-year10-year5-year


Dam (Existing)

Major cities/towns

River

Dam (Notconsidered forflood control)

Zone division for floodcontrol planning

LEGEND

Basic Flood Dishcarge(20-year for U2, 10-yearfor U1, D1 and D2)

F-18

Bou Heurtma Dam

Kasseb R.

Sidi Salem Dam

Sea

(Gulf of Tunis)

Highway

Tessa R.

Mellegue R.

Mellegue Dam

Mellegue 2 Dam

Bou Salem

K13

El Battane

Jendouba

Bou Salem

Rarai R.

Mejez El Bab

Mliz R.

Beja R.

Slouguia

Zerga R.

Algeria

Alg

eria


(After Project : Recommended Improved Dam Operation 2030 )

Laroussia Dam

Tobias Dam

Chafrou R.

Sarrath R.

Lahmar R.

Jedeida

Mejez El Bab

El Herri

Rm

el R

.

Sarrath Dam

Testour

Bou Heurtma R.

Alg

eria

Siliana Dam

Sid

i Me

die

n

Siliana R.Rmil R.

Me

jerd

a R

�

Ghardimaou

Bajer R.

Khalled R.

53

60

35

80

17

70

10

90

67

0

34

00

20

90

70

04

10

17

0

44

50

24

20

11

00

41

01

20

35

60

21

90

81

04

90

34

0

33

70

20

60

93

06

50

44

0

Estuary

22

50

18

30

11

50

79

05

20

52

40

33

30

14

90

89

04

80

68

03

10

40

30

30

12

10

83

04

60

28

01

60

24

30

17

30

10

90

75

04

90

16

50

11

80

74

05

10

33

0

58

60

38

70

18

40

11

30

67

0

66

90

48

50

30

50

20

10

13

20

U1

37

50

23

30

88

06

00

42

0

JendoubaM

U2

D1 & D2

BP

-AM

44

20

33

00

21

20

13

70

93

0

Tessa Dam

14

10

94

05

20

31

01

80

Flood Discharge



Dam (Existing)

Major cities/towns

River



LEGEND

F-19

(Bou Heurtma Dam)

Kasseb R.

(Sidi Salem Dam)

Sea

(Gulf of Tunis)

Highway

Tessa R.

Mellegue R.

(Mellegue Dam)

Bou Salem

K13

El Battane

Jendouba

Bou Salem

Rarai R.

Mejez El Bab

Mliz R.

Beja R.

Slouguia

Zerga R.

Algeria

Alg

eria


(Assumed to be without Dam)

Laroussia Dam

Tobias Dam

Chafrou R.

Sarrath R.

Lahmar R.

Jedeida

Mejez El Bab

El Herri

Rm

el R

.

(Sarrath Dam)

Testour

Bou Heurtma R.

Alg

eria

(Siliana Dam)

Sid

i Me

die

n

Siliana R.Rmil R.

Me

jerd

a R

�

Ghardimaou

Bajer R.

Khalled R.

65

50

48

20

30

50

20

70

13

80

69

00

43

00

27

20

18

50

12

30

52

00

37

90

24

00

16

40

10

90

Estuary

22

50

18

30

11

50

79

05

20

67

50

50

30

31

90

21

50

14

30

24

30

17

30

10

80

75

04

90

16

50

11

80

74

05

10

33

0

71

10

52

70

33

40

22

50

15

00

U1

65

60

48

10

30

50

20

70

13

80

JendoubaM

U2

D1 & D2

BP

-AM

44

20

33

00

21

20

13

70

93

0

(Tessa Dam)

21

50

15

40

96

06

60

43

0

61

00

44

50

28

20

18

80

12

60

Flood Discharge



Dam (Existing)

Major cities/towns

River



LEGEND

F-20

Figure 7.2.7 Specific Discharge

0.01

0.1

1

10

100 1000 10000 100000Catchment Area (km2)

Spe

sific

Dis

char

ge (

m3/

s/km

2)

200y

100y

50y

20y

10y

5y

2y

5y

2y

10y

20y

50y

100y

200y

Ghardimaou G/S

K13 G/S

AF

-32

F-21

GP5

GP7

GP

8

GP6

To Tunis

To Tunis

To Bou Salem

Highw

ay

HighwayGP5

To Tunis

GP5

GP7

GP

8

GP6

To Tunis

To Tunis

To Bou Salem

Highw

ay

HighwayGP5

To Tunis

Inundation Depth

(m)

0

0.001-0.5

0.5 - 1

1 - 2

2 - 3

3 - 4

4 or more

Legend

Proposed River Improvement

Major Road

Railway

Channel Excavation/

Widening

(B: Bottom width)

Embankment *

Bypass Channel

Retarding Basin

* : Not all reaches along this symbol require embankment.

Embankments are to be partially installed on reaches

whose bank elevation is lower than design water level.

AFTER PROJECT (Step 2)

(Improved Dam Operation

+ River Improvement)


(Improved Dam Operation)

BEFORE PROJECT

(Present Condition)

With

Present standard dam operation of

selected existing dams :

Sidi Salem Dam

Siliana Dam

With

Improved Dam Operation (2030) of

selected dams :

Sidi Salem Dam

Siliana Dam

With


selected dams :

Sidi Salem Dam

Siliana Dam

River Improvement :

Channel excavation/widening

Embankment

Bypass channel

Retarding basin

N

Jedeida

El Battane

Larrousia Dam

El Herri

Tobias Dam

Mejez El Bab

Slouguia

Sidi Salem Dam

Siliana Dam

da R

iver

Meje

r

Chafrou River

N

Jedeida

El Battane

Larrousia Dam

El Herri

Tobias Dam

Mejez El Bab

Slouguia

Sidi Salem Dam

Siliana Dam

da R

iver

Meje

r

Chafrou River

Retarding Basin

Inlet Channel

Sidi Salem Dam

Tobias

Mobile Dam

Siliana Dam

B = 2

5 m

Bypass

Channel

B = 15mB = 20 m

B = 20m

GP5

GP7

GP8

GP6

To Tunis

To Tunis

To Bou Salem

Jedeida

Meje

rda R

iver

Slouguia

Mejez El Bab

El Herri

Larrousia Dam

El Battane

N

Chann

elExc

avat

ion/

Wid

enin

gB =

25m

B = 3

5m

B =

25m

Channel Exc

avat

ion/

Wid

enin

gC

hann

el Excavation/

Widening

B = 25 m

Channel Excavation/W

idenin

g

Figure 7.3.1 Inundation before and after Project (1/3) : Zone D1 and D2 (for Selected Flood Protection Level : 10 year probability)

F-2

2

Channel Excavation/Widening

B = 10m

Channel Excavation/W

idening

B = 10m

Chann

el Exc

avat

ion/W

idenin

g

B = 1

5m

Chan

nel E

xcava

tion/

Wid

en

ing B

= 1

5m

Inundation Depth

(m)

0

0.001-0.5

0.5 - 1

1 - 2

2 - 3

3 - 4

4 or more

Legend

Channel Excavation/

Widening

(B: Bottom width)


Railway

Major Road

Embankment *

Bypass Channel




Figure 7.3.1 Inundation before and after Project (2/3) : Zone U1 and M (for Selected Flood Protection Level : 10 year probability)



+ River Improvement)



BEFORE PROJECT

(Present Condition)

Mellegue Dam and Sarrath Dam

Mellegue Dam

With



Mellegue Dam

With


selected dams :

Mellegue Dam

Sarrath Dam

With


selected dams :

Mellegue Dam

Sarrath Dam

River Improvement :

Channel excavation/wideningMellegue Dam and Sarrath Dam

Mellegue R

iver

Rarai River

Mejerda River

GP6

Jendouba

Ghardimaou

Meje

rda R

iver

To Bou Salem

N

N

Mellegue R

iver

Rarai River

Mejerda River

GP6

Jendouba

Ghardimaou

Meje

rda R

iver

To Bou Salem

N

Mellegue R

iver

Rarai River

Mejerda River

GP6

Jendouba

Ghardimaou

Meje

rda R

iver

To Bou Salem

F-2

3

To B

eja

GP6

To B

eja

GP6

To B

eja

GP6

N


B = 10m

Bypass Channel

B = 25m

8.0 km

Channel E

xcava

tion/

Wid

enin

g B

= 1

5 m

Channel Excavation/

Widening B = 50 m

+ Embankment


+ Embankment B = 40m

Channel Excavation/

Widening B = 50 m Embankment (+ No Excavation)

Inundation Depth

(m)

0

0.001-0.5

0.5 - 1

1 - 2

2 - 3

3 - 4

4 or more

Legend

Channel Excavation/

Widening

(B: Bottom width)


Railway

Major Road

Embankment *

Bypass Channel




Figure 7.3.1 Inundation before and after Project (3/3) : Zone U2 (for Selected Flood Protection Level : 20 year probability)



+ River Imrovement)



BEFORE PROJECT

(Present Condition)

Mellegue Dam and Sarrath Dam TessaDam

Tessa River

Jendouba

Mel

legu

e Riv

er

Mejerda River

Bou Heurtma Dam

Sidi Salem

Reservoir

Beja

Riv

er

Bou Salem

Tessa River

Jendouba

Mel

legu

e Riv

er

Mejerda River

Bou Heurtma Dam

Sidi Salem

Reservoir

Beja

Riv

er

Bou Salem

N

Mellegue Dam and Sarrath Dam TessaDam

Bou Heurtm

a River

N

Tessa River

Jendouba

Mel

legu

e Riv

er

Mejerda River

Bou Heurtma Dam

Sidi Salem

Reservoir

Beja

Riv

er

Bou Salem

Mellegue Dam

Bou Heurtm

a River

With



Mellegue Dam

Bou Heurtma Dam

With


selected dams :

Mellegue Dam

Bou Heurtma Dam

Tessa Dam

Sarrath Dam

With


selected dams :

Mellegue Dam

Bou Heurtma Dam

Tessa Dam

Sarrath Dam

River Improvement :

Channel excavation/widening

Embankment

Bypass channel

Kasse

b Ri

ver

Kasse

b Ri

ver

Bou Heurtm

a River

Kasse

b Ri

ver

F-2

4

Figure 8.2.1 General Plan of Coordinated Operation of Dams (1/2)

Coordinated Operation of Sidi Salem Reservoir

Sidi Salem Reservoir (Existing)

reservoirs to be coordinated

discharge reference points

check point of coordination effect

55 to 70 %

effect of coordinated operation

(peak discharge under coordinated operation in target year 2030 / peak discharge under standard operation)

68 to 86 %

Bou Heurtma

Mellegue

Mellegue 2

Siliana

Legend

Bou SalemJendouba

Ghardimaou

Sidi Medienne

Jebel Laoudj

Slouguia

Coordinated Operation of Mellegue Reservoir

Mellegue Reservoir (Existing)




55 to 70 %



Bou Heurtma

Sidi Salem

Mellegue 2

Tessa

Legend

Sarrath

64 to 88 %

66 to 85 %

Sidi Medienne

K 13

Algerian border

Sarrath Pont Route

Bou Salem

Jendouba

Coordinated Operation of Bou Heurtma Reservoir

Bou Heurtma Reservoir (Existing)




55 to 70 %



Ben Metir

Mellegue

Tessa

Legend

64 to 88 %

Bou Salem

Fernana

Jendouba

Sidi Medienne

�

Coordinated Operation of Siliana Reservoir

Siliana Reservoir (Existing)




55 to 70 %



68 to 86 %

Sidi Salem

Legend Lakhmes

Bou Salem Slouguia

Jebel Laoudj

Entree Plaine Siliana

�

F-25

Figure 8.2.1 General Plan of Coordinated Operation of Dams (2/2)

Coordinated Operation of Mellegue 2 Reservoir

Mellegue 2 Reservoir (Future)



Bou HeurtmaSidi Salem

Mellegue

Tessa

Legend

Sarrath

Jendouba

Sidi Medienne

K 13

RMel Pont Route

Algerian border

Sarrath Pont Route

�

Coordinated Operation of Sarrath Reservoir

Sarrath Reservoir (Future)



Mellegue 2

Mellegue

Legend

Sarrath Pont Route

RMel Pont RouteK 13

Algerian border

Sidi Abdelkader

�

Coordinated Operation of Tessa Reservoir

Tessa Reservoir (Future)



Bou Heurtma

Mellegue

Legend

Sers Ville

Bou Salem

Jendouba

F-26

Figure 8.3.1

Division of Zones in

Priority at El Mabtouh Plain

F-27

Figure 8.3.2 Present Conditions of Sluiceways along El Mabtouh Canal

F-28

Figure 8.3.3 Present Conditions of Sluiceways along El Mabtouh Canal

F-29

Figure 8.3.4 Location Map of Existing Sluiceways along El Mabtouh Canal

F-30