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THE PANAY RIVER FLOOD CONTROL PROJECT PHASE I

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THE PANAY RIVER FLOOD CONTROL PROJECT PHASE I

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    1. THE PANAY RIVER FLOOD CONTROL PROJECT (PHASE I)

    2. Project Area

    3. Flooding Condition

    4. Major Floods in the Recent 35 Years

    5. Inundation Area by Dec. 2000 Flood in the Panay River Basin (Total inundation area: about 320 km2, total affected people about 220,000)

    6. Inundation around Panay and Pontevedra during 2000 Flood

    7. Inundation around Panay Town during 2000 Flood

    8. Submerged Houses by the 2000 Flood near Pontevedra

    9. Overflow on the National Road No.2 from Panay to Pontevedra by 2000 Flood

    10. Flow over the National Road No.2 between Panay and Pontevedra during 1984 Flood

    11. INUNDATION DEPTH OF ABOUT 2.5 m AT A HOUSE NEAR PANITAN DURING DECEMBER 2000 FLOOD

    12. COLLAPSED WALL AT DAO NEAR THE SCHOOL BY STRONG CURRENT OF DECEMBER 2000 FLOOD

    13. INUNDATION DEPTH AT A HOUSE NEAR CUARTERO DURING DECEMBER 2000 FLOOD

    14. Panay River Flood Control (Phase I Project)

    15. The Phase I Project The objective of the Phase I Project is to protect people’s living and economy of Capiz Province against floods. As the inundation area in the Panay River Basin is very wide (about 320 km2) and affected people is many (about 220,000 people), flood control is to be conducted by stage-wise manner from downstream area to upstream area. The structural measures of Phase I Project will mitigate about 80 % of flood damage caused by flood with 25-year Return Period by constructing Cogon-Hamulauon Floodway. Rest of the 20 % of flood damage can be mitigated by river improvement in the downstream reach to be conducted in future stage. The non-structural measures of Phase I Project will be Flood Forecasting and Warning System covering the whole Panay River Basin to facilitate operation of the Floodway as well as ensure safety of people in the flood risk areas in the downstream to upstream reaches of the Panay River Basin.

    16. Alternative Study on the Structural Measures

    17. Structural Measures: Alternatives For structural measures to protect downstream area against floods, three alternatives were studied. Design flood is 25-year Flood: with design discharge at Panitan Town of 1850 m3/sec. As the results of the alternative study, Cogon-Hamulauon Floodway with river improvement of the Panay-Pontevedra River was selected due to the lowest cost (see next page).

    18. Alternatives Structural Measures for the Flood Control in the Downstream Area (Phase I and future phase)

    19. Alternative I: Panay-Ponteverda River Improvement

    20. Alternative II: Cogon-Hamulauon Floodway and Panay-Pontevedra River Improvement

    21. Alternative III: Cogon-Pawa Floodway and Panay-Pontevedra River Improvement

    22. Proposed Structural Measures of Phase I Project Cogon-Hamulauon Floodway

    23. Structural Measures of Phase-I Project Among the Alternative II for protecting the downstream area (about 160 km2 downstream from Panitan Town) against floods, Cogon-Hamulauon Floodway is proposed as the first stage implementation as the Phase-I Project. By Cogon-Hamulauon Floodway, flood with 14-year return period can be safely discharged to the sea without inundation in the downstream area. In case of occurrence of flood with the design flood of 25-year return period, about 80 % of flood damage in the downstream area can be reduced. The rest of 20 % of flood damage in the downstream area will be reduced by conducting improvement of the Panay-Pontevedra River (downstream from Panitan Town) in the future stage.

    24. Location of Cogon-Hamulauon Floodway (Phase I)

    25. Cogon-Hamulauon Floodway (Upstream View)

    26. Design Discharge of Cogon-Hamulauon Floodway (Phase I) + River Improvement (Future Phase) for Design Flood of 25-year Return Period

    27. Flood Control cum Saline Water Protection Gate

    28. Flood Control cum Saline Water Protection Gate

    29. New Bridge for National Road No.2 crossing Cogon-Hamulauon Floodway

    30. Image of Resettlement Site (about 2 ha) (Number of Households to be resettled: about 170)

    31. Proposed Non-structural Measures of Phase I Project Flood Forecasting and Warning System 1) Telemetric rainfall gauging station: 5 nos. 2) Telemetric river water level gauging stations: 5 nos. 3) Flood Control Center with computer system at the operation room of Flood Control cum Saline Water Protection Gate

    32. Flood Forecasting and Warning System

    33. Rain Gauge (5 nos.) and River Water Level Gauge (5 nos.)

    34. Panay River Flood Control Center at the Operation Room of Flood Control cum Saline Water Protection Gate

    35. Emergency Meetings at Provincial Disaster Coordinating Council (PDCC) utilizing the Data of Flood Forecasting and Warning System

    36. Public Announcement and Evacuation Activity for securing Safety of People before and during Floods in the Panay River Basin

    37. Project Cost and Disbursement Schedule of Phase I Project

    38. Direct Cost of Structural Measures and Non-structural Measures of Phase I Project

    39. Total Cost of Phase I Project

    40. Source of Financing / Disbursement Schedule of Phase I Project (Amount in Million Pesos)

    41. Economic Evaluation of Phase I Project

    42. EIRR with Results of Sensitivity Analysis of Phase I Project

    43. End of Presentation Thank you for your attention.

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