situation report_mindanao river basin_for june 22, 2011

8/6/2019 Situation Report_Mindanao River Basin_for June 22, 2011

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AGUSAN

River

Basin

MINDANAO

River Basin

MINDANAO RIVER BASIN

2ND LARGEST RIVERBASIN IN THE

PHILIPPINES

Basin Area=23,170 Sq. km

Rivers Length

Pulangi 323 kms

Ala 120 kms

Mindanao 100 kms


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MINDANAO RIVER BASIN

PULANGI RIVER

MINDANAO RIVER

ALA RIVER BANGA RIVER

LIGAWASAN MARSH

TAMONTAKA RIVER

ILLANA BAY

SIMUAY RIVER

ALA VALLEY

3


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ELEV.1,500 M.

TIGUA R.

MANUTO R.

KULAMAN R.

KABACAN R.

MLANG R.

MALASILA R.

ALIP R.

LAKE BULUANBANGA R.

HEAD WATER ALA R.

ELEV. 1600 M

LAKE SEBU

SEPAKA R.

MAGANOY R

LIGAWASAN

MARSH

BULUAN R

EBPANAN

MARSHLIBUNGAN

MARSH

MALITUBOG R

MALADUGAO R.

MULETA R

MARAMAG R.

NATAYLAN R

MANUPALI R

SAWAGA R

M

I

N

D

A

N

A

O

R

PAGALUNGAN

PIKIT

ALLAH R. CROSSING DATU PIANG

LIBUNGAN R

SIMUAY R

TAMONTAKA

RIVERCOTABATO CITY BRIDGE

LEGEND:

Rivers

Existing Cut-off

Channel

Marsh Area

SCHEMATIC RIVER FLOW

LOWER

COTABATO RIVER

BASINRiver Flow

Direction

The Mindanao (Cotabato) River BasinHEAD WATER PULANGI R.

4

Courtesy of RDC 12, FRANK_2008 presentation

N


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SITUATION AT THE MRB

Heavy rainsstarted in the

month of May2011

as of 5pm, May22, 2011: PAGASA

estimatedtropical stormChedengat1,050 km East

ofNorthernMindanao

June 9, 2011:Typhoon Dodongcame in.


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Municipality of Lambayong, Sultan Kudarat Province

June 11, 2011


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BREACH SECTION


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The Pulangi-Pagalungan Rivers,Cut-off Channel towards

Ligawasan Marsh


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Tunggol Bridge

June 11, 2011


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Tunggol Bridge

Scoured Area


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Tunggol Bridge

Along Davao-Cotabato Road

Damaged Slope

Protection

Scoured AreaElectric Post


14/43Facing Upstream

Scoured AreaSilted Area

Electric Tower


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Malitubog-Maridagao, Libungan RiversFrom the areas of Lanao del Sur and Bukidnon flow

the Libungan and Malitubog-Maridagao Riversrespectively. They eventually flow into the

Ligawasan Marsh. The swelling of these heavily

silted rivers and their tributaries due to the heavyrainfall in May and June aggravated by wanton

deforestation caused severe flooding in the province

of North Cotabato. This took place particularly in

the municipalities Alamada, Libungan, Pigcawayan,

and Midsayap and resulted in the destruction of

thousands of hectares of farmlands.


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Simuay-Ambal Rivers


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Segment II

Segment III

Segment I


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Illana Bay


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3 marshes---June

11, 2011


22/43Ebpanan Marsh---June 11, 2011


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Ligawasan Marsh---June 11, 2011


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Upstream of Mindanao River----June 11, 2011


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June 11, 2011


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Illana Bay


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Sultan Kudarat area

Illana Bay

Matampay River

Rio Grande de Mindanao

tampay Bridge

Quirino Bridge


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What can be done? In the short term:


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What can be done? In the short term:1. Fast track the dredging of Rio Grande de Mindanao

simultaneous dredging of various stretches.

2. Regularly clearing the water hyacinth as soon asthey flow down towards Delta and Quirino bridges.

3. Revise the footings of both bridges so that water

hyacinth would slide by them.4. Fast track the work of widening and completing the

Simuay cut-off channel and closing the breach.

5. Protect Tunggol Bridge and the old Matampay

Bridge.

6. Construct Raradangan and Olandang Bridges.

7. Deploy 3 WaterMasters for the Mindanao River

Basin


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In the long term:

1. Replace Quirino Bridge2. Systematize the dredging of the Rio Grande from

Yllana Bay to Kubuntalan.

3. Reforestation of the Mindanao River Basin

4. Establishing catchment structures to catch water

hyacinth as they flow from Ligawasan Marsh

down towards Cotabato City.

5. Implement the high impact projects identified bythe Mindanao River Basin Integrated

Management and Development Master Plan:

HIGH IMPACT PROJECTS


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The Projects to be subjected for pre-feasibility study level are as

follows:

1) Pre-feasibility Study of the Development of Early Warning and Flood

Forecasting System Project for the Mindanao and Malungun-Buayan

River Basins

2) Pre-feasibility Study of an Integrated Flood Control, River Bank

Protection and Rehabilitation Project for Ala River System.3) Pre-feasibility Study of an Integrated Flood Control, River Bank

Protection and Rehabilitation Project for Pulangui River System.


Protection and Rehabilitation Project for Rio Grande de MindanaoRiver System.


Protection and Rehabilitation Project for Malungun-Buayan River

System.

6) Pre-feasibility Study of Dendro Thermal Power



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The Projects to be subjected for feasibility study level are asfollows;

1) Feasibility Study of an Integrated Flood Control, River

Bank Protection and Rehabilitation Project for Ambal-

Simuay River System2) Feasibility Study of Siltation Control and Management

Project for Rio Grande de Mindanao River System.

3) Feasibility Study of Siltation Control and Management

Project for Ala River System.4) Feasibility Study of Siltation Control and Management

Project for Malungun-Buayan River System.


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6. Establish an agency with the

necessary powers and authority toimplement the Master Plan.

Priority Projects


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Priority ProjectsName of the Project Status Allocation

1. Community-based Integrated Dredging andManagement Model for Mindanao River Basin

No Funding

2. Channelization and Bank Protection with Sluice

gate for Emergency Project at Simuay River and

closure of Breach

On-going P 60 M

3. Immediate Provision of additional Watermaster

for Task Force Deployment

4. Simultaneous Dredging of Rio Grande de

Mindanao from Bucana to Quirino Bridge (7Kms.)

On-going

(200Mreleased)

P 250 M

5. Tunggol Bridge II, Bank Protection, Channelization

Phase I and Phase II, Datu Montawal,

Maguindanao (very critical bridge linking Davao

City and Cotabato City)

For Funding P 75 M

6 Repair of Olandang Bridge which collapsed Funded P 45M P 49 M


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6. Repair of Olandang Bridge which collapsed

during typhoons Frank and Cosme

Funded P 45M

FY 2011

P 49 M

7 . Repair/Rehabilitation of Ala River Flood

Control, Channelization at Punol, Sigayan,

Panabungan, Papakan Section, Lambayong,

Sultan Kudarat

On-going

(70M released)

P 100 M

8. Repair/Rehabilitation of Ala River Flood

Control, Channelization and Bank Protection

along Punol, Sigayan, Panabungan, Papakan

Section, Lambayong, Sultan Kudarat

No funding P 100 M

9. Proposed Upgrading/Concreting of Quirino

Delta Bridge Access Road at Barangay

Salimbao, Sultan Kudarat, Maguindanao

Funded 20M

FY 2011 ARMM

RIP

P 33.4885 M

10. Repair and Rehabilitation of Ala River Flood

Control, Channelization and Bank Protection,

Sultan sa Barongis, Maguindanao

11. Repair of Raradangan Bridge

No Funding P 50 M

11 Construction of Pingiuaman Bridge I Lambayong No Funding P 40 M


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11. Construction of Pingiuaman Bridge I, Lambayong,

Sultan Kudarat

No Funding P 40 M

12. Construction of Pingiuaman Bridge II, Lambayong,

Sultan Kudarat

No Funding P 20 M

13. Construction of Sadsalan Bridge II, Lambayong,

Sultan Kudarat

Completed P 80 M

14. Construction of Drainage Canal at Barangay

Buluan Creek, Phase V, Brgy. Buluan, Pigcawayan,

Cotabato

No Funding P 5 M

15. Improvement/Rehabilitation of Malu-ao Guigeken

Drainage Canal, Pigcawayan, Cotabato (Phase I)

Funded 15M

FY 2011

P 20 M

16. Protection of Dike and Extension of Cut-Off

Channel of Libungan River, Phase I (NIA)

No Funding P 15 M

17. Repair/Rehabilitation of Grebona Bridge at

Banisilan, Alamada

Completed P 35 M

18. Replacement of Quirino Bridge No Funding P 250

19. Preparation of Master Plan for the Mindanao

River Basin

On-going P 50 M


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Thank you!

God bless!

Presidential Task Force

Mindanao River Basin Rehabilitation and DevelopmentNEDA XII Building, ARMM Compound, Cotabato City

Telefax: (064) 4214170 Email: [email protected]

situation report_mindanao river basin_for june 22, 2011

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