Erosion Control Plan
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1JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
17 – 19 APRIL 2006
SHERATON HOTEL, LABUAN
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2JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
By
Ir. Razali bin JarminB.Sc. (Hons), M.Sc. (Geotechnical),P.Eng.
Timbalan Pengarah
Bahagian Kawalan Infrastruktur & Penyelenggaraan
Jabatan Pembangunan Bandar
Perbadanan Putrajaya
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3JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
Area : 4,932 hectares
Population : 330,000
Residential Units : 67,000 units
Land Use :-
5.3 %
2.9 %
25.8 %
0.2 %
10.1 %
18.2 %
37.5 %
Government Offices
Commercial
Residential
Civic & Cultural
Public Amenities
Infrastructure &
Utilities
Open Space
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4JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
GOALS OF PUTRAJAYA DRAINAGE MASTER PLAN
To provide a cost effective maintainable drainage systemd.
To provide for public convenience and safety from floodingc.
To mitigate increased runoff and pollutant exports to external
catchments. (provision of detention ponds)
b.
To preserve the environmental values of the lake system.a
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5JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
DRAINAGE PATHS AND THE OPEN SPACE
NETWORK
The drainage infrastructure proposed for Putrajaya to achieve the goals
comprises of the following system :-
Detention basins (dry and wet type)d.
Gross Pollutant Traps (GPTs)e.
Water Pollution Control Ponds / Wetlandsf
Culvertsc.
Open channelsb.
Stormwater pipes (conduits) – closed systemsa
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6JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
Detention
Pond
Detention
PondDetention
Pond
DETENTION PONDS (TO BE CONSTRUCTED)
Detention
Pond
Detention
Pond
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7JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
PLOT AREA
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8JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
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9JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
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10JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
TO ACHIEVE THIS, WE NEED CONTROLS IN DEVELOPMENT
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11JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
LEGISLATION
�TOWN AND COUNTRY PLANNING ACT 1976 (ACT 172)
�STREET, DRAINAGE AND BUILDING ACT 1974 (ACT 133)
�EARTHWORKS (PERBADANAN PUTRAJAYA) BY-LAWS 1996
�ENVIRONMENTAL QUALITY ACT 1974 (ACT 127)
�ENVIRONMENTAL QUALITY (DELEGATION OF POWERS)
(PERBADANAN PUTRAJAYA) ORDER 2002
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12JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
RECOMMENDATION FOR
INFRA WORKS FOR CF
APPLICATION
PROJECT
COMPLETION
PROJECT CLOSURE
PLAN (PCP)
SITE INSPECTION AND
MONITORING
DURING
CONSTRUCTION
STAGE
ENVIRONMENTAL
MANAGEMENT AUDIT
REPORT (EMAR)
DETAIL INSPECTION OF
EARTHWORKS PLAN AND
SPECIFICATIONS
BEFORE APPROVAL
BEFORE
CONSTRUCTION
ENVIRONMENTAL
MANAGEMENT
COMPLIANCE PLAN
(EMCP)
EARTHWORKS REPORTPLANNING STAGEENVIRONMENTAL
MANAGEMENT REPORT
(EMR)
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13JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
1.1 TOWN AND COUNTRY PLANNING ACT 1976
1.0 PLANNING STAGE
SECTION 19(1)
No person other than local authority shall carry out any development
unless planning permission has been granted.
SECTION 27(6)
On conviction can be fine not exceeding RM 50,000.00 and to a further
fine which may extend to RM 1,000.00 for each day during which the
development is carried out after the first conviction for the offence.
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14JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
1.2 PLANNING STAGE CONTROL
SECTION 21A(1) – DEVELOPMENT PROPOSAL REPORT
For erosion and sediment control , the report should contained
the following :-
�Measures for the preservation of its natural topography
�The proposed earthworks and a
�A description on how the earthworks to be carried out.
�Environmental Control Plan
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15JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
2.1 STREET, DRAINAGE AND BUILDING ACT 1974
2.0 EARTHWORKS APPROVAL STAGE
SECTION 70A (1)
No person shall commence or carry out or permit to be commenced or
Carried out any earthworks without having first submitted to the
local authority plans and specifications in respect of the earthworks and
obtained the approval of the local authority thereto.
SECTION 70A (9) - PENALTY
Upon conviction, liable to an imprisonment for a term not exceeding
5 years or fine not exceeding RM 50,000.00 or both
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16JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
2.2 STREET,DRAINAGE AND BUILDING
(COMPOUNDING OF OFFENCES)
(FEDERAL TERRITORY OF PUTRAJAYA) BY-LAWS 2003
Can be Compounded – not exceeding 50% of the maximum amount
of fine (i.e. RM 25,000.00 )
2.3 EARTHWORKS (PERBADANAN PUTRAJAYA)
BY-LAWS 1996
Upon conviction shall be liable to a fine not exceeding RM 2,000.00
And shall also be liable to a further fine not exceeding RM 100.00 for
Every day during which the offence is continued after the conviction.
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17JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
2.0 SUBMISSION OF PLANS
PLANS FOR EARTHWORKS APPROVAL SHALL BE SUBMITTED
BY A REGISTERED PROFESSIONAL CIVIL ENGINEER AS
REQUIRED BY THE LAW
Plans submitted by the Consultant should indicate the following :-
1. Cut / Fill Area
2. Location of Silt Traps and Wash Trough
3. Location of Temporary Drainage System etc.
4. And any other measures to control erosion during construction and
5. Permanent protection upon completion of the earthworks.
** (Participant can refer to the Earthworks By-Laws for further details)
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18JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
EXAMPLE : EROSION CONTROL PLAN SUBMISSION
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19JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
EXAMPLE : TYPICAL DETAILS OF SILT TRAP
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20JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
SILT TRAP
EARTHWORKS CONTROL
Function :-
To control the flow of sediment and polluted
water from entering the main water system
eg. river, streams, main drains
Design of Silt Traps :-
As per MASMA Guidelines
Monitoring :-
Ensure that the Developer/Contractor desilt
the silt trap as and when required to ensure
its efficiency.
Spillway
Filter Material
Dry Type
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21JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
Well maintained Silt Trap
Silt Trap not properly maintained
(Action can be taken by the Local Authority
by issuing Compliance Instructions or fine
the Developer / Contractor as stipulated in
the Act / By-Laws )
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22JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
Silt trap – Wet Type
Spillway
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23JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
TEMPORARY EARTH DRAINS
EARTHWORKS CONTROL
Function :-
To direct the flow of surface water to the silt
trap or sediment basin.
Monitoring :-
Ensure that the Developer/Contractor
maintain the temporary drain regularly.
Overflow pipe
Filter Material
Temporary Earth drains
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24JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
SILT FENCE
EARTHWORKS CONTROL
Function :-
To control the flow of sediments into
temporary drains / waterways / lakesOverflow pipe
Filter Material
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25JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
SILT FENCE
EARTHWORKS CONTROL
Overflow pipe
Filter Material
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26JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
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27JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
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28JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
WASH TROUGH
EARTHWORKS CONTROL
Function :-
To ensure that vehicles leaving the
site is clean and does not dirty the
public road.
Overflow pipe
Filter Material
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29JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
PROTECTION TO SLOPES
EARTHWORKS CONTROL
All exposed slopes to be
turfed
immediately (preferred
method : Hydroseeding)
to control erosion.
Overflow pipe
Filter Material
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30JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
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31JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
3.0 ENFORCEMENT
REGULAR INSPECTIONS BY THE AUTHORITY TO THE CONSTRUCTION
SITE IS A MUST TO ENSURE THAT THE DEVELOPER / CONTRACTOR
FULFILL THE REQUIREMENTS AS PER APPROVED PLAN.
ACTION AS STATED IN THE ACT OR BY-LAWS SHALL BE ENFORCED
IMMEDIATELY TO ENSURE THAT THE DAMAGE DONE BY NOT
FULFILLING THE REQUIREMENTS IS MINIMAL.
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32JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
DESILTING WORKS
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33JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
DETENTION POND - DESILTING WORKS (POST CONSTRUCTION)
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34JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
DETENTION POND – AFTER DESILTING WORKS
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35JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
GROSS POLLUTANT TRAP
PERMANENT CONTROLS
Function :-
To control the flow of
sediment and rubbish
from entering the main water
system eg. river, streams,
main drains, lakes
Spillway
Filter Material
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36JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
RUBBISH SCREEN/ SEDIMENT TRAP
PATENTED GROSS
POLLUTANT TRAP
(eg. ECOSOL, CDS, ROCLA)
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37JABATAN PEMBANGUNAN BANDAR, PERBADANAN PUTRAJAYA
FOR YOUR ATTENTION