Smart Tunnel

SMART Tunnel Kuala Lumpur: Visiting Hours, Tickets, and Travel Guide

Date: 14/06/2025

Introduction

Kuala Lumpur’s SMART Tunnel (Stormwater Management and Road Tunnel) is a world-renowned example of dual-purpose urban infrastructure, uniquely designed to address two of the city’s most persistent issues: flash flooding and traffic congestion. Opened in 2007, this 9.7-kilometer tunnel is the first of its kind globally, integrating a double-deck motorway above a stormwater diversion channel. Strategically located at the confluence of the Klang and Ampang Rivers, the SMART Tunnel protects the city’s historic and commercial core—including major landmarks like Masjid Jamek and Dataran Merdeka—while providing a crucial traffic corridor for thousands of daily commuters.

This guide provides in-depth information about the tunnel’s history, engineering innovations, operational modes, visiting guidelines, accessibility, and nearby attractions. Whether you’re an engineering enthusiast, a local resident, or a tourist eager to understand Kuala Lumpur’s urban resilience, this article equips you with everything you need to know for a meaningful visit.

For comprehensive project details and technical insights, consult resources like the ITA-AITES SMART Tunnel Case Study, MMC Gamuda’s official project page, and FloodList.

Introduction
History and Engineering Background
- Origins and Rationale
- Design and Construction Challenges
Operational Modes and Technologies
Visitor Information and Practical Tips
Environmental Impact and Urban Significance
FAQ
Visuals and Media
Conclusion
References and Further Reading

History and Engineering Background

Origins and Rationale

Kuala Lumpur’s rapid urbanization brought about two major issues: repeated city center flooding and worsening traffic congestion. Located at the confluence of two rivers, the city’s commercial heart was highly susceptible to flash floods, impacting vital sites like Masjid Jamek and Jalan Tun Perak (Amusing Planet; FloodList). The Malaysian government, in partnership with the Department of Irrigation and Drainage Malaysia and the Malaysian Highway Authority, initiated the SMART Tunnel project to deliver a holistic solution that merged flood control with traffic management (ITA-AITES; Water.gov.my).

Design and Construction Challenges

The SMART Tunnel’s design is globally unique: a 3-kilometer double-deck motorway is stacked above a stormwater channel, all within a 9.7-kilometer bore. This concept was realized by the MMC Berhad and Gamuda Berhad Joint Venture, employing state-of-the-art tunnel boring machines (“Tuah” and “Gemilang”) to navigate complex geological conditions, including karstic limestone and marble formations (SDG Centre KL). Construction began in November 2003 and the tunnel was fully operational by mid-2007.

Key components of the system include:

Upstream diversion and attenuation ponds
Central tunnel section with upper motorway decks and a lower stormwater channel
Automated floodgates and ventilation shafts
Downstream attenuation ponds

Safety and operational systems were installed to international standards, including flood sensors, watertight gates, ventilation, CCTV, and emergency exits (Water.gov.my).

Operational Modes and Technologies

The SMART Tunnel operates in three distinct modes:

Normal Conditions: Motorway remains open; stormwater channel is dry.
Moderate Storms: Floodwater is diverted through the lower channel, while vehicles use the motorway above.
Severe Storms: The motorway is closed, and the entire tunnel is used as a stormwater conduit, capable of diverting up to three million cubic meters of water. After flood events, the tunnel is cleared and reopens to traffic within 2–48 hours (ITA-AITES).

The tunnel’s robust mechanical and electrical systems, including automated monitoring and flood detection, ensure safe and efficient operation during both dry and flood conditions.

Visitor Information and Practical Tips

Visiting Hours and Tours

The SMART Tunnel is primarily a functional infrastructure for traffic and flood management. Regular public access to the tunnel interior is restricted due to safety requirements. However, special guided tours and educational visits are occasionally organized by engineering associations or city authorities—advance booking is essential, and such events are generally announced on official channels.

The motorway itself operates 24/7 except during severe weather events when it switches to flood mode and closes to vehicles.

Tickets and Accessibility

There are no entrance tickets for visiting the SMART Tunnel as a tourist attraction. However, tolls are charged for vehicles using the motorway section, payable exclusively via Malaysia’s Touch ‘n Go card system. Toll rates for private cars typically range from RM 3.00 to RM 4.00 per entry; motorcycles use separate, untolled lanes (Automology).

The tunnel is accessible by car from the Sungai Besi Expressway (E9) or Jalan Tun Razak. Public transport options include nearby LRT and KTM Komuter stations, as well as taxis and ride-hailing services.

Travel and Nearby Attractions

While the tunnel itself is not open for general tourism, its entrances are close to several of Kuala Lumpur’s top historical and cultural landmarks:

Masjid Jamek: One of the city’s oldest and most significant mosques.
Dataran Merdeka (Independence Square): A key site of Malaysia’s independence celebrations.
Sultan Abdul Samad Building: Iconic Moorish-style government building.

Combine your SMART Tunnel exploration with visits to these sites for an enriching day out. Ample amenities, including petrol stations, eateries, and hotels, are available nearby.

Travel tips:

Check tunnel operational status (especially during the monsoon season).
Ensure your Touch ‘n Go card is loaded before entering.
Observe all posted speed limits and safety signage (typically 60–80 km/h).
Photography inside the tunnel is prohibited; exterior shots and public exhibits are permitted.

Environmental Impact and Urban Significance

The SMART Tunnel has been instrumental in reducing flooding in Kuala Lumpur’s city center, averting billions of ringgit in potential property and infrastructure damages (Geospatial World; Gamuda News). By channeling floodwaters underground, it preserves green spaces and minimizes the need for additional surface roads. The tunnel was awarded the UN-Habitat Scroll of Honour in 2011 for its contributions to climate adaptation and sustainable city development.

The SMART Tunnel has also significantly improved urban mobility, saving commuters up to 30–40 minutes during peak hours and reducing surface-level congestion (MMC Gamuda).

Frequently Asked Questions (FAQ)

Q: Can I visit inside the SMART Tunnel?
A: Public entry is restricted for safety, but occasional educational tours are available by arrangement.

Q: What are the tunnel’s opening hours?
A: The motorway section is open 24/7 except when closed for flood management. Check live status via official signboards or the project website.

Q: Is there a ticket or entrance fee?
A: No tickets are required for visits. Toll charges apply to vehicles using the motorway, payable by Touch ‘n Go.

Q: Are guided tours available?
A: Special tours may be arranged for educational or professional groups. Contact MMC Gamuda or local tourism offices.

Q: Is the tunnel safe during heavy rain?
A: Yes. The tunnel is closed to traffic and used exclusively for floodwater diversion during severe storms.

Visuals and Media

For more images, diagrams, and virtual resources, visit the MMC Gamuda project page.

Conclusion

The SMART Tunnel is a pioneering symbol of Kuala Lumpur’s commitment to sustainable urban development and climate resilience. While it is not a conventional tourist attraction, its engineering significance and the nearby cultural heritage sites make it a vital part of any exploration of Kuala Lumpur’s urban landscape. For the latest information, consult official resources and use the Audiala app for real-time updates and travel suggestions. Follow us on social media for more insights on Malaysia’s engineering marvels and urban attractions.