ITS MANAGEMENT IN MALAYSIA DEPARTMENT OF IRRIGATION AND DRAINAGE

Transcription

1 WATER RELATED DISASTER AND ITS MANAGEMENT IN MALAYSIA FLOODS

2 BACKGROUND

3 INTRODUCTIONS WATER RELATED DISASTERS IN MALAYSIA FLOODS LANDSLIDES DROUGHT TSUNAMIES

4 FLOODS

5 LANDSLIDES

6 (DID) To provide engineering services & technical advices to the Government and the public on the issues of: Flood Mitigation River Management Coastal Management Hydrology and Water Resources Management

7 FLOODS EVENTS IN MALAYSIA

8 Padang Kelab Selangor

9 Kuala Lumpur

10 Tun Perak Road, Kuala Lumpur

11 Padang Kelab Selangor

12 Kuala Lumpur

13 Shah Alam, Selangor

14 Shah Alam, Selangor

15 Federal Highway, Kuala Lumpur

16 Bangunan Sultan Abdul Samad, Kuala DEPARTMENT OF IRRIGATION AND Lumpur DRAINAGE

17 Jalan Ayer Molek, Johor Bahru, Johor

18 Jalan Sultan Ismail, Kuala Lumpur

19 Bangunan Sultan Abdul Samad, Kuala DEPARTMENT OF IRRIGATION AND Lumpur DRAINAGE

20 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization

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22 After Q Before Time

23 Effect of Urbanisation Increase in Impermeable Time of concentration ti - 50% reduction Area = 0-40% Runoff - 190% increase

24 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization Loss of flood storage

25 Development extending into and taking flood plains and drainage corridors

26 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization Loss of flood storage Inadequate drainage systems

27 Undersize Triple Cell Culvert

28 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization Loss of flood storage Inadequate drainage systems Constriction at bridges and culverts, water flow block by debris or other cause

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30 LRT Piers in river channel

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32 Bottle neck

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34 Water level during flooding on 2002

35 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization Loss of flood storage Inadequate drainage systems Constriction at bridges and culverts, water flow block by debris or other cause Siltation in waterway channel

36 Uncontrolled Land CLearing

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39 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization Loss of flood storage Inadequate drainage systems Constriction at bridges and culverts, water flow block by debris or other cause Siltation in waterway channel Localized continous heavy rainfall

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41 FLOODED HOUSING AREA

42 FLOODED AGRICULTURAL AREA

43 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization Loss of flood storage Inadequate drainage systems Constriction at bridges and culverts, water flow block by debris or other cause Siltation in waterway channel Localized continous heavy rainfall Tidal back effect

44 FLOOD DUE TO TIDAL EFFECT Port Klang, December 1999

45 ISSUES RELATED TO FLOODS Increased runoff rates due to urbanization Loss of flood storage Inadequate drainage systems Constriction at bridges and culverts, water flow block by debris or other cause Siltation in waterway channel Localized continous heavy rainfall Tidal back effect Inadequate river capacity

46 FLOOD MITIGATION

47 APPROACH & ACTIONS Permanent Flood Control Commission Established in 1971 Objective : Prevention Rather Than Cure Strategies: To take measures for flood control and to reduce the occurrence of floods In the event of floods, to minimize damage & loss to life and property

48 APPROACH AND ACTIONS Flood Disaster Relief Machinery Objective : Coordinating relief operations at federal, states and districts level To provide assistance to flood victims in orderly & effective manner The committee is empowered to getting the financial assistance from the Federal Government for remedial works eg: shelter, rescue & food supplies Members: Government Department / Agencies Non-Government Organization (NGO)

49 APPROACH AND ACTIONS River Basin Studies Objective : To draw up appropriate p flood maps and also feasible projects for development as well as water resources are properly p manage for the respective basin areas Flood Mitigation For Major River Basins Drainage Masterplan Studies

50 FLOOD MITIGATION STRATEGIES Flood Mitigation Measures Structural Measures

51 FLOOD CONTROL DAMS Dams constructed to retain water to protect t downstream of the dams

52 CANALIZATIONS AND RELATED WORKS After Before Lining of banks and beds of channel

53 CANALIZATIONS AND RELATED WORKS widening and deepening of channels

54 BUNDING OF RIVERS Concept of Bunding Construction Scenario 1 : River Without Bund Scenario 2 : River Widening & Deepening Without Bund Scenario 3 : River With Bund, extended to Flood Plain Scenario 4 : River with bund at minimum i distance

55 STORAGE PONDS OF FLOOD ATTENUATION

56 STORAGE PONDS OF FLOOD ATTENUATION

57 STORAGE PONDS OF FLOOD ATTENUATION Storage Pond of Sungai Batu

58 STORAGE PONDS OF FLOOD ATTENUATION MASMA CONCEPT

59 POLDERING (RING BUND) TAMAN SRI MUDA

60 POLDERING (RING BUND)

61 POLDERING (RING BUND)

62 POLDERING (RING BUND)

63 POLDERING (RING BUND)

64 FLOOD DIVERSION CHANNEL OR TUNNEL

65 FLOOD DIVERSION CHANNEL OR TUNNEL

66 FLOOD DIVERSION CHANNEL OR TUNNEL

67 FLOOD DIVERSION CHANNEL OR TUNNEL

68 FLOOD DIVERSION CHANNEL OR TUNNEL

69 FLOOD DIVERSION CHANNEL OR TUNNEL Sungai Gombak Diversion

70 FLOOD DIVERSION CHANNEL OR TUNNEL

71 FLOOD DIVERSION CHANNEL OR TUNNEL Sungai Keroh Diversion

72 FLOOD DIVERSION CHANNEL OR TUNNEL

73 FLOOD MITIGATION STRATEGIES River Basin Studies Structural Measures Non-Structural Measures

74 INTEGRATED RIVER BASIN MANAGEMENT The river basin is planned in integrated manner and all factors are taken into consideration when certain development plan is proposed. The factors are zoning the river corridors, riparian areas, natural flood plain, conservation of wetlands and storage ponds will be taking into consideration in flood management plan

75 PREPARATION OF GUIDELINES & DESIGN STANDARDS Guidelines and design standards have been prepared, specifying cleat requirements both physicals and technical, for river and their reserves, flood mitigation and urban drainage projects. DID have published more than 20 Hydrological Procedures, Urban Stormwater Management Manual (MASMA) and DID Manual. These guidelines and design standards if followed strictly will help to minimize the occurrence of floods

76 RESETTLEMENT OF POPULATION Land & Social Issues

77 RESETTLEMENT OF POPULATION PROPOSED LAND ACQUISITION Land for Construction of bund 20m wide maintenance strip 20m wide maintenance strip Land for Construction of bund Land for river House will be compensated and evacuated Land for disposal of surplus materials

78 RESETTLEMENT OF POPULATION CLUSTER ARRANGEMENT CLUSTER ARRANGEMENT SG. MUDA BUND AND LOT OF RESETTLEMENT RIVER BANK RIVER FIGURE. 2 - TYPICAL PLAN OF RESETTLEMENT WITH CLUSTER ARRANGEMENT

79 RESETTLEMENT OF POPULATION LINEAR ARRANGEMENT SG. MUDA COLLECTOR DRAIN BUND AND LOT OF RESETTLEMENT RIVER BANK RIVER FIGURE. 1 - TYPICAL PLAN OF RESETTLEMENT WITH LINEAR ARRANGEMENT

80 RESETTLEMENT OF POPULATION Longhouses for Squatter Resettlement

81 RESETTLEMENT OF POPULATION Low Cost Flats for Squatter Resettlement

82 FLOOD PROOFING EXAMPLE: BUNDING THE AREA WITH WALL SO THAT THEAREA IS NOT SUBMERGED DURING FLOOD

83 FLOOD FORECASTING & WARNING SYSTEM TELEMETRIC SYSTEM Peninsular Malaysia International Boundary State boundary River Telemetry system

84 FLOOD FORECASTING & WARNING SYSTEM Flood Warning Board

85 FLOOD FORECASTING & WARNING SYSTEM Flood Warning Siren

86 FLOOD FORECASTING & WARNING SYSTEM

87 CONCLUSIONS Damage to infrastructures & Loss of Life Cannot Be Eliminated

88 CONCLUSIONS To ensure the impact of water related disaster is reducing. RESPONSIBILITY Government Public Stakeholders Non Governmental International organizations Organizations i (NGO)

89 CONCLUSIONS ACTION To implement Flood Management Program in Comprehensive and Integrated Manner To Establish Flood Mitigation With Organized Approach & Proper Action

90 So that ; Floods Cannot Be Prevented

91 And Damage to infrastructures & Loss of Life Cannot Be Eliminated