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The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia

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The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia Directorate General of Water Resources, Ministry of Public Works Republic of Indonesia THE PROJECT FOR CAPACITY DEVELOPMENT OF JAKARTA COMPREHENSIVE FLOOD MANAGEMENT IN INDONESIA TECHNICAL COOPERATION REPORT COMPREHENSIVE FLOOD MANAGEMENT PLAN ANNEX-1 RUNOFF ANALYSIS AND FLOOD CONTROL MEASURE OCTOBER, 2013 JAPAN INTERNATIONAL COOPERATION AGENCY YACHIYO ENGINEERING CO., LTD. GE JR 13-198 Directorate General of Water Resources, Ministry of Public Works Republic of Indonesia THE PROJECT FOR CAPACITY DEVELOPMENT OF JAKARTA COMPREHENSIVE FLOOD MANAGEMENT IN INDONESIA TECHNICAL COOPERATION REPORT COMPREHENSIVE FLOOD MANAGEMENT PLAN ANNEX-1 RUNOFF ANALYSIS AND FLOOD CONTROL MEASURE OCTOBER, 2013 JAPAN INTERNATIONAL COOPERATION AGENCY YACHIYO ENGINEERING CO., LTD. The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia Annex-1 Runoff Analysis and Flood Control Measure The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia Technical Cooperation Report Comprehensive Flood Management Plan Annex-1 Runoff Analysis and Flood Control Measure Table of Contents CHAPTER 1 BASIC SURVEY ....................................................................................................... 1-1 1.1 Outline of River Basin .......................................................................................................... 1-1 1.1.1 Geological Feature of River Basin ................................................................................ 1-2 1.1.2 Transition of Land Use Condition ................................................................................. 1-4 1.1.3 Population ...................................................................................................................... 1-5 1.2 River System ......................................................................................................................... 1-6 1.3 River Structure ...................................................................................................................... 1-8 1.3.1 River Course .................................................................................................................. 1-8 1.3.2 Drainage Pump Station and Gate ................................................................................. 1-11 1.3.3 Situ-Situ ....................................................................................................................... 1-17 1.4 Flood Inundation Record ..................................................................................................... 1-19 1.5 Examination of Related Plans ............................................................................................. 1-28 1.5.1 Existing Flood Management Plans .............................................................................. 1-28 1.5.2 Improvement Plan of Ciliwung River ......................................................................... 1-30 1.5.3 Flood Management Plan in Lowland Area .................................................................. 1-38 1.5.4 Related Projects funded by Other Donors ................................................................... 1-40 CHAPTER 2 HYDRAULIC AND HYDROLOGICAL ANALYSIS .............................................. 2-1 2.1 Rainfall Observation Station and Rainfall Data Arrangement Status ................................... 2-1 2.2 Probable Rainfall ................................................................................................................... 2-3 2.2.1 Extraction of Annual Maximum Rainfall ...................................................................... 2-3 2.2.2 Probable Rainfall ........................................................................................................... 2-7 2.3 Basin Average Probable Rainfall ......................................................................................... 2-12 2.3.1 Thiessen Polygon ......................................................................................................... 2-12 2.3.2 Annual Maximum Basin Average Rainfall .................................................................. 2-19 2.3.3 Basin Average Probable Rainfall ................................................................................. 2-21 2.4 Examination of Rainfall Features ........................................................................................ 2-25 2.4.1 Examination of Major Rainfall .................................................................................... 2-25 2.4.2 Design Rainfall Duration ............................................................................................. 2-43 2.4.3 Design Rainfall Curve ................................................................................................. 2-45 2.5 Capacity of Flow ................................................................................................................. 2-46 2.6 Tide Level ........................................................................................................................... 2-57 2.6.1 Datum .......................................................................................................................... 2-57 2.6.2 Tide Level .................................................................................................................... 2-57 CHAPTER 3 EXAMINATION OF ANNUAL PROBABLE FLOOD DISCHARGE .................... 3-1 3.1 Examination Policy ............................................................................................................... 3-1 3.2 Outline of Flood Inundation Analysis Model ........................................................................ 3-3 3.2.1 Selection of Flood Inundation Analysis Model ............................................................. 3-3 3.2.2 Segmentation of Mesh in the Whole Basin ................................................................... 3-6 3.2.3 Settlement of Discharge Basin and Inundation Area ..................................................... 3-6 3.2.4 Basic Structure of Flood Inundation Model .................................................................. 3-9 3.2.5 Formulation of Flood Inundation Model ..................................................................... 3-11 3.3 Examination of Annual Probable Flood Discharge ............................................................. 3-26 3.3.1 Objective of Examination ............................................................................................ 3-26 i The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia Annex-1 Runoff Analysis and Flood Control Measure 3.3.2 Conditions of Examination .......................................................................................... 3-26 3.3.3 Result of Examination ................................................................................................. 3-27 CHAPTER 4 FLOOD INUNDATION ANALYSIS ........................................................................ 4-1 4.1 Methodology ......................................................................................................................... 4-1 4.2 Comparison of Flood Inundation Conditions in line with Land Use Change ....................... 4-1 4.2.1 Objective of Analysis .................................................................................................... 4-1 4.2.2 Conditions of Analysis .................................................................................................. 4-1 4.2.3 Results of Analysis ........................................................................................................ 4-3 4.3 Flood Inundation Analysis .................................................................................................... 4-6 4.3.1 Objective of Examination .............................................................................................. 4-6 4.3.2 Conditions of Examination ............................................................................................ 4-6 4.3.3 Results of Examination .................................................................................................. 4-6 CHAPTER 5 EXAMINATION OF BASIN DESIGN DISCHARGE VOLUME ........................... 5-1 5.1 Setup of Target Year .............................................................................................................. 5-1 5.2 Setup of Future Prospective of River Basin .......................................................................... 5-1 5.3 Examination of Basin Design Discharge Volume ................................................................. 5-2 5.3.1 Design Reference Point ................................................................................................. 5-3 5.3.2 Design Rainfall .............................................................................................................. 5-5 5.3.3 Determination of Flood Inundation Analysis Model ..................................................... 5-9 5.3.4 Determination of Basin Design Discharge Volume ..................................................... 5-15 CHAPTER 6 FLOOD CONTROL MEASURES IN RIVER COURSE ................................................ 6-1 6.1 Design Flood Discharge ............................................................................................................... 6-1 6.2 Flood Control Facilities in River Course .....................................................................................
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