A 9.7km stormwater tunnel.
A 3km motorway tunnel (within the stormwater tunnel).
Ingress and Egress connections to the motorway tunnel linking KL-Seremban Highway.
Ingress and Egress connections linking the motorway tunnel to Jalan Sultan Ismail and Jalan Tun Razak.
A holding basin at Kampung Berembang (off Jalan Ampang).
A storage reservoir at Taman Desa (ex mining pond).
A twin-box culvert to release flood discharge from storage reservoir to Sungai Kerayong.
An operation control centre complete with administration, supervision, river management and traffic management facilities for management, operation and maintenance of the SMART system.


Stormwater
Tunnel
Length:

9.7km
 
Diameter:
11.7m
 
Storage Capacity:
1,000,000 cubic meter
 
Tunneling Method:
Tunnel Boring Machine (TBM)
 
Origin of Tunneling Technology:
Germany
 
TBM Type:
Slurry Shield
Largest in South East Asia & 2nd Largest in Asia


Motorway
Tunnel
Length:

3 km
 
Structure type:
Double Decker
 
Ingress and Egress
Connections' Length :

1.5km at Jalan Sultan Ismail.

1.4km at Jalan Tun Razak.

1.6km at KL-Seremban Highway.
 
Links:
Connects city centre near Kampung Pandan roundabout to KL-Seremban Highway near Sungai Besi.


Storage
Resevoir
Location:

Ex-mining pond in Taman Desa
 
Surface Area:
22 ha ( 216 594 sq m)
 
Storage Capacity:

1,400,000 cubic metres


Holding Basin
Location:

Kampung Berembang
(behind Gleneagles Hospital in Jalan Ampang)
 
Surface Area:
10 ha (104 008sq m)
 
Storage Capacity:

600,000 cubic metres
 

 
 
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