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‎ Stormwater Management and Road Tunnel Sdn Bhd (SMART)
E 38 E38 expressway
Length: (kilometres)	4 km
Direction:	North→South
Start:	Jalan Tun Razak on Kuala Lumpur Middle Ring Road 1
Main destinations:	Cheras Petaling Jaya Seremban Melaka Johor Bahru Bukit Bintang Imbi
End:	Sungai Besi Airport on Kuala Lumpur-Seremban Expressway
Construction dates:	2003 - 2007
Expressway joined:	Kuala Lumpur Middle Ring Road 1 E 37 AH 2Kuala Lumpur-Seremban Expressway Sultan Ismail-Kampung Pandan Link Kuala Lumpur Inner Ring Road
Asian Highway Network:	none
Technical specifications
Development Cost:	RM1,887 million (US$514.6 million)
Number of lanes:	4 lanes (double-decker)
Interchanges:	3
Toll plazas:	4
P Layby:	1 (at SMART Tunnel Operation Office)
R&R Rest and Service Area:	none
R&R Overhead Bridge Restaurant:	none
V Vista Point:	none
Highway tunnels:	4 km
Type of roads:	Motorway tunnel Concrete
Toll systems:	Open toll systems

The "Stormwater Management and Road Tunnel" or "SMART Tunnel", E 38 is a storm drainage and road structure in Kuala Lumpur, Malaysia, a major national project in the country. It is the longest stormwater tunnel in South East Asia and second longest in Asia.

The main objective of this tunnel is to solve the problem of flash floods in Kuala Lumpur and also to reduce traffic jams along Jalan Sungai Besi and Lok Yew flyover at Pudu during rush hour. There are two components of this tunnel, the stormwater tunnel and motorway tunnel.

It begins at Kampung Berembang lake near Klang River at Ampang and ends at Taman Desa lake near Kerayong River at Salak South. The project is led by the government, including Malaysian Highway Authority (LLM) and the Department of Irrigation and Drainage Malaysia (Jabatan Pengairan dan Saliran = JPS) and also a company joint venture pact between Gamuda Berhad and Malaysian Mining Corporation Berhad (MMC).

Contents 1 History 2 How SMART Tunnel works 2.1 First mode (Normal conditions) 2.2 Second mode (Most storms) 2.3 Third mode (Major storms) 3 Tunnel safety 4 Technical specifications 4.1 Stormwater tunnel 4.2 Motorway tunnel 5 Features 6 Toll rates 7 FM Radio channels available in the tunnel 8 List of interchanges 8.1 Main tunnel 8.2 Sultan Ismail link tunnel 9 See also 10 References 11 External links

Construction of the tunnel began in 2003. Two Tunnel Boring Machines (TBM) were used, including Tuah on north side and Gemilang on south side. The two TBMs commenced digging in 2004.

On April 22, 2006, the Gemilang machine completed digging on the south side at the Taman Desa outfall, while the Tuah machine completed digging in the Kampung Berembang area in 2 April 2007.

The motorway sections on the SMART system was officially opened at 3:00PM, 14 May 2007, after multiple delays.^{[1] [2]}

Meanwhile, the stormwater sections on the SMART system began operations at the end of June.

The first mode, under normal conditions where there is no storm or low rainfall, no flood water will be diverted into the system. Under the second mode, SMART system will be activated and this happens when there is a moderate storm.

When the second mode is activated, flood water is diverted into the bypass tunnel in the lower channel of the motorway tunnel. The motorway section is still open to traffic up to this stage.

At the third mode of operation the motorways will be closed to traffic. When this mode of operation is required, the motorway will be closed to traffic. After all vehicles have exited the motorway, automated water-tight gates will be opened to allow flood waters to pass through. The motorway will be reopened within 48 hours of closure.

Ventilation or escape shafts at 1 km intervals will provide ventilation within the motorway. To protect the ventilation system during floods, the system consist of a series of shafts; each containing an exhaust and fresh air injector. This design enables fans situated outside the SMART Tunnel to create a longitudinal flow in the tunnel between the shafts that permits the air in the tunnel to be continuously renewed and to enable extraction of exhaust fumes. The feature also allows smoke control in the event of a fire. The SMART Tunnel is also equipped with fire-fighting, telecommunication and surveillance equipments at 1 km intervals.

• Construction cost: RM1,887 million (US$514.6 million)
• Stormwater tunnel length: 9.7 km (6.0 mi)
• Diameter: 13.2 m (43.3 ft) (outer diameter)
• Tunnelling method: Tunnel Boring Machine (TBM)
• TBM type: Slurry shield

• Motorway tunnel length: 4 km (2.5 mi)
• Structure type: Double Deck
• Ingress and egress: 1.5 km (0.93 mi) at Jalan Sultan Ismail and Jalan Imbi
• Length: 1.4 km (0.87 mi) at Jalan Tun Razak
• Links: 1.6 km (1 mi) at Kuala Lumpur-Seremban Expressway Links: City Centre near Kg. Pandan Roundabout KL-Seremban Expressway near Sungai Besi Airport

• Longest tunnel in Southeast Asia and second longest in Asia.
• 9.7km (6.03 miles) stormwater by-pass tunnel.
• 4km (2.49 miles) double-deck motorway within stormwater tunnel.
• The motorway tunnel is suitable for light vehicles only. Motorcycles and heavy vehicles are not allowed.
• Ingress and egress connections to the motorway tunnel linking the southern gateway to the city centre.
• Holding basin complete with diversion and tunnel intake structures.
• Storage reservoir and a twin-box culvert to release flood discharge.
• State-of-the-art operations control room equipped with the latest systems in operations management, surveillance and maintenance of the SMART system.

Class	Type of vehicles	Rate (in Malaysian ringgit (RM))	Notes
	Private car	RM2.00	For taxis, toll charges are paid by passengers only.

• Klasik Nasional FM 87.7 MHz
• KL FM 97.2 MHz
• Muzik FM 95.3 MHz
• Hot FM 97.6 MHz
• Fly FM 95.8 MHz
• hitz.fm 92.9 MHz

Km	Exit	Interchange	To	Remarks
			SOUTH E 37 AH 2KUALA LUMPUR-SEREMBAN EXPRESSWAY E 27Cheras E 37Petaling Jaya E 37Shah Alam AH 2Kompleks Sukan Negara E 5Klang E 2 AH 2NORTH-SOUTH EXPRESSWAY SOUTHERN ROUTE E 6Kuala Lumpur International Airport (KLIA) E 2 AH 2Seremban E 2 AH 2Melaka E 2 AH 2Johor Bahru
E 37 AH 2 KUALA LUMPUR-SEREMBAN EXPRESSWAY MetaCorp border limit
E 38 SMART TUNNEL SMART border limit
		PSMART Tunnel Operation Office TnG TAG i Customer Service Centre	TnG TAG i Customer Service Centre	South bound on Cheras, Petaling Jaya and Shah Alam stretches only
SMART toll plaza BTT RM (Cash) TnG TAG TAG TnG RM (Cash) Open toll system Pay toll
MOTORWAY TUNNEL Dry sections Start/End of tunnel Maximum height 2 m Speed limit 60 km/h
	3801	Motorway Tunnel Dry sections Tunnel exit south bound	EXIT 3801A PSMART Tunnel Operation Office E 37 SALAK EXPRESSWAY E 37Cheras E 37Petaling Jaya E 37Shah Alam EXIT 3801B E 37 AH 2 KUALA LUMPUR-SEREMBAN EXPRESSWAY E 37 AH 2Kompleks Sukan Negara E 5Klang E 2 AH 2NORTH-SOUTH EXPRESSWAY SOUTHERN ROUTE E 6Kuala Lumpur International Airport (KLIA) E 2 AH 2Seremban E 2 AH 2Melaka E 2 AH 2Johor Bahru	Tunnel interchange
MOTORWAY TUNNEL Dry sections
MOTORWAY TUNNEL Water gate boundary
MOTORWAY TUNNEL Wet sections
MOTORWAY TUNNEL Wet sections
MOTORWAY TUNNEL Water gate boundary
MOTORWAY TUNNEL Dry sections
	3802	Motorway Tunnel Dry sections Tunnel exit north bound	EXIT 3802A SULTAN ISMAIL LINK TUNNEL JALAN DAVIS KUALA LUMPUR INNER RING ROAD Jalan Imbi Jalan Sultan Ismail Jalan Bukit Bintang EXIT 3802B KUALA LUMPUR MIDDLE RING ROAD I JALAN TUN RAZAK (Jalan Pekeliling) Kuala Lumpur City Centre (KLCC) Ampang	Tunnel interchange
MOTORWAY TUNNEL Dry sections Start/End of tunnel Maximum height 2 m Speed limit 60 km/h
E 38 SMART TUNNEL SMART border limit
KUALA LUMPUR MIDDLE RING ROAD 1 DBKL border limit
			NORTH KUALA LUMPUR MIDDLE RING ROAD I JALAN TUN RAZAK (Jalan Pekeliling) Kuala Lumpur City Centre (KLCC) Ampang

Km	Exit	Interchange	To	Remarks
			NORTHWEST SULTAN ISMAIL-KAMPUNG PANDAN LINK (JALAN DAVIS) KUALA LUMPUR INNER RING ROAD Jalan Imbi Jalan Sultan Ismail Jalan Bukit Bintang
JALAN DAVIS DBKL border limit
E 38 SMART TUNNEL SMART border limit
MOTORWAY TUNNEL Dry sections Start/End of tunnel Maximum height 2 m Speed limit 60 km/h
	3802	Sultan Ismail link tunnel Dry sections Tunnel entry south bound	MOTORWAY TUNNEL E 37Cheras E 37Petaling Jaya E 37 AH 2Kompleks Sukan Negara E 6Kuala Lumpur International Airport (KLIA) E 2 AH 2Seremban E 2 AH 2Melaka E 2 AH 2Johor Bahru	Tunnel interchange

• Channel Tunnel
• Seikan Tunnel
• Transatlantic tunnel
• Gibraltar Tunnel - proposed
• Bering Strait bridge - proposed

• SMART Tunnel
• MMC Corporation Berhad
• Department of Irrigation and Drainage Malaysia
• SMART Tunnel - Mott MacDonald Project Page

v • d • e Malaysian Expressway System
History	Chronology of Malaysian Expressway System events
Toll rates	North-South Expressway • East Coast Expressway
Interstate	E 1 North-South Expressway Northern Route (including New Klang Valley Expressway and Penang Bridge) • E 2 North-South Expressway Southern Route • E 6 North-South Expressway Central Link (NSECL/ELITE) • E 8 Karak Expressway and East Coast Expressway (LPT) • E 15 Butterworth-Kulim Expressway (BKE) • E 21 # Kajang-Seremban Highway (KASEH) • E 28 ^ West Coast Expressway
Klang Valley and Selangor	E 4 # Shah Alam-Kemuning Highway • E 5 Shah Alam Expressway (SAE/KESAS) • E 7 Cheras - Kajang Expressway (CKE/Grand Saga) • E 9 Sungai Besi Expressway (SBE/BESRAYA) • E 10 New Pantai Expressway (NPE) • E 11 Damansara-Puchong Expressway (LDP) • E 12 Ampang-Kuala Lumpur Elevated Highway (AKLEH) • E 16 # Duta-Ulu Klang Expressway (DUKE) • E 18 Kajang Dispersal Link Expressway (SILK) • E 20 # Kuala Lumpur-Putrajaya Expressway (KLPE) • E 23 Sprint Expressway (Kerinchi Link, Damansara Link and Penchala Link) • E 25 ^ Assam Jawa-Templer Park Highway (LATAR) • E 26 South Klang Valley Expressway (SKVE) • E 30 New North Klang Straits Bypass (NNKSB) • E 35 Guthrie Corridor Expressway (GCE) • E 37 Salak Expressway (East-West) and Kuala Lumpur-Seremban Expressway • E 38 Stormwater Management and Road Tunnel (SMART Tunnel)
Johor	E 3 Second Link Expressway (Malaysia-Singapore Second Link) (MSSC/LINKEDUA) • E 13 ^ Muar-Segamat Highway • E 14 ^ JB Eastern Dispersal Link • E -- # Senai-Desaru Expressway (SDE)
Penang	E 17 Butterworth Outer Ring Road (BORR) • E -- # Penang Outer Ring Road (PORR) • E 22 # Penang Second Bridge
Others	E 19 ^ Ipoh-Lumut Expressway • E 29 Seremban-Port Dickson Highway (SPDH)
Legend - # denotes highway under construction, ^ for under development.

v • d • e Gamuda Expressway Networks
E 5 Shah Alam Expressway • E 11 Damansara-Puchong Expressway • E 23 Sprint Expressway • E 38 SMART Tunnel