JABATAN PERANCANGAN INFRASTRUKTURDEWAN BANDARAYA KUALA LUMPUR

CADANGAN MEMPERTINGKATKAN SISTEMPERPARITAN

INDUK DAN SISTEM PENGURUSAN AIRHUJAN DI

KAWASAN TAMAN UNITED, KUALA LUMPUR. (2014 / G018)

INCEPTION REPORT NO 1

PERUNDING:

FASA ENGINEERING SERVICESC-3-4, Megan Phoenix,

Jalan 2/142A,KM10,Off Jalan Cheras,56000 Kuala LumpurTel : 03-91080418Fax : 03-91080418fasaengineering@gmail.com

3.4.2015

1.0 General

Upon receiving the survey drawing, a ground study was carried

out again to evaluate the subsurface condition of the area.

From the survey data much information are gathered including

the direction of flow of the drain in the area that surround

the flash flood area.

2.0 Findings (please refer to Figure 1 and Templates A,B,C and D)

The flash flood area has an existing main drain running from

Taman OUG, running through the said site (being unexposed

box-culvert) at Jalan Sepadu and into an open L-shaped drain

at Jalan Sepadu 7. In the said site, one side of the drain is

aligned with small type of box culvert which has been laid

new. The other side seems to be a normal HRGW drain which

needs to be replaced.

TEMPLATE D

TEMPLATE B

FIGURE 1: TEMPLATES LAYOUT FOR EXISTING FLOW

TEMPLATE A

TEMPLATE C

TEMPLATE D

TEMPLATE B

TAMAN OUG

TAMAN UNITED

TEMPLATE A: FLOW FROM TAMAN OUG

FROM OUG

TO TAMAN

TO TAMAN

FROM UPSTREA

TEMPLATE B: FLOW FROM UPSTREAM CATCHMENT

TEMPLATE C: FENCED L-SHAPED DRAIN NEAR

THE FLASH FLOOD AREA AT JALAN SEPADU 7

FLASH FLOOD AREA

FROM UPSTREA

TEMPLATE D: OPEN L-SHAPED DRAIN NEAR

THE FLASH FLOOD AREA

3.0 Proposal (please referto Figure 2 and template E,F,Gand H)

The flash flood area at Jalan Sepadu has an existing main

drain running through Jalan Sepadu and an existing outlet

from the said area (an open L-shaped drain) at Jalan

Sepadu7.With urbanization changes the landscape of the area,

thus creating the transformation of storm water entering the

drainage system more faster and increase the quantity of

water in the drainage system during heavy storm .Therefore

causing overloading of drains and causing the flash flood to

occur. As for Taman United the existing drain is not

sufficient to hold the overloading run-off. Therefore to

minimize the effects, below describe the suggestion for the

drainage improvement works:

i) To improve on one side of the existing drainage,

upgrading to a suitable box-culvert system at Jalan

Sepadu

TEMPLATE E: TO UPGRADE THE DRAINAGE ON THE LEFT

SIDE OF JALAN SEPADU

ii) To propose suitable type of works to be carried out to

clear all type of siltation, debris’s and other types of

blockages along roadside drain alignment.

iii) To propose a detention system to hold back or detain the

increase discharge or peak discharge during storms. The

storm water are being stored at site and then slowly

discharging it. The proposed area for the On-Site

Detention Pond is at the T-junction of Jalan Gembira in

the existing Nursery area under the existing

Transmission line.

JALAN SEPADU

upgrading

TEMPLATE F: TO PROPOSE ON-SITE DETENTION POND AT THE

JUNCTION OF JALAN GEMBIRA ON THE EXISTING

NURSERY AREA

TEMPLATE G: DRAIN FROM TAMAN OUG

PROPOSED OSDJALAN

TRANSMISSION

TAMAN OUG

EXISTING DRAIN

TEMPLATE H: FRONT VIEW AREA TO PLACE THE ON-SITE

DETENTION POND

PROPOSED OSD

FIGURE 2: PROPOSAL

prepard by: Fasa Engineering Services 3.4.2015

PROPOSED DRAIN UPGRADING (TEMPLATE

PROPOSED OSD (TEMPLATE

TAMAN UNITED

JLN

TAMAN OUG

JLN GEMBIRA