Technical Site Visit (14th September 2017, Half Day Tour)

Proposed Tour Venues

1. Stormwater Management and Road Tunnel (SMART)

The Stormwater Management And Road Tunnel (SMART Tunnel), E38, is a storm drainage and road structure in Kuala Lumpur, Malaysia, and a major national project in the country. The 9.7 km (6.0 mi) tunnel 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 Loke Yew flyover at Pudu during rush hour. There are two components of this tunnel, the stormwater tunnel and motorway tunnel. It is the longest multi-purpose tunnel in the world.

In 2011, the SMART tunnel received the UN Habitat Scroll of Honour Award for its innovative and unique management of storm water and peak hour traffic.

Stormwater tunnel

  • 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

2. Pantai 2 Sewage Treatment Plant

The Pantai Catchment is the largest of eight catchments within the city of Kuala Lumpur. The catchment covers an area of over 6,700 ha, which include the central and south-western parts of Kuala Lumpur.

Within the Pantai catchment are Bandar Baru Sentul, the proposed Sentul Raya Development, Central Business District, and popular recreational areas such as Bukit Kiara and Botanical Gardens.

The existing Pantai CSTP consists of large Aerated lagoons and recently constructed mechanize plant (which are separated by the New Pantai Expressway, NPE) has a total capacity for 877,000 PE, whereas the Pantai CSTP is presently serving a connected PE of 1.18 million. Thus, the Pantai CSTP is highly overloaded and has to be upgraded immediately. The new STP (Pantai 2 STP) is to be constructed at an ultimate capacity of 1.423 million PE.

It is proposed that the large aerated lagoons to be upgraded to a mechanized Pantai 2 STP to alleviate the current situation. The new centralized waste water treatment facility will generate standard A effluent in accordance with the Environmental Quality (Sewage) Regulation 2009.

A compact treatment facility using Advanced A2O process together with sludge treatment and dewatering facilities will be constructed. This is to replace the existing aerated lagoons, which will incorporate anaerobic digestion with solid dewatering.

A 1.423 million PE sludge management facility will be constructed to treat and manage the waste biological sludge, with the provision of bio gas power generation facility.

The Pantai 2 STP will be developed as an underground facility with ground/area above the STP developed as a leisure park with sports, recreational, administration building and community facilities for the local residents.

3. Langat 2 Water Treatment Plant

The Langat 2 Water Supply Project is a major water supply project for the state of Selangor and the Federal Territory of Kuala Lumpur, envisaged to provide the water to the state and federal territory up to year 2025. The raw water source for the Langat 2 Water Supply Project will be from the Pahang Selangor Raw Water Project (PSRWT Project), is presently undertaken by the Federal Government. The PSRWT Project will convey raw water from the Sg. Semantan in the state of Pahang through a transfer tunnel to the state of Selangor.

The water will be treated at Langat 2 WTP, which will have an ultimate capacity of 2260Mld. The Langat 2 WTP will be developed in two equal phases and each nominal capacity will be 1130Mld. The treated water will be distributed via separate bulk distribution pipelines to the Western Corridor, Northern Corridor and the existing Langat balancing reservoir.

Completion : Targeted completion – 2019
Total Capacity : 1,130 MLD
Supply Areas : Hulu Kelang, Kuala Lumpur, Ampang, Sungai Besi, Bukit Jalil and Puchong.

4. Pahang Selangor Raw Water Transfer Project (Interstate Water Transfer)

Pahang Selangor Raw Water Transfer Tunnel is a huge gravity-driven raw water transfer tunnel being constructed by the Malaysian Ministry of Energy, Green Technology and Water (KeTTHA). The project involves construction of three tunnels measuring 44.6km-long, making it the world's 11th longest tunnel and the longest in South-East Asia. Construction activity started in 2010 and the excavation works were completed by May 2014.

The water tunnel is being built as part of the Pahang Selangor Raw Water Transfer (PSWT) project aimed at supplying raw water from the River Semantan to the states of Selangor, Kuala Lumpur and Negeri Sembilan. Cost RM2.48 billion, with a transfer tunnel, 35m-high Kelau Dam (effective capcity of 299 MCM), Semantan intake facility, pumping station, dual water pipelines & convey 1.89 billion litres of raw water daily.


31 OCTOBER 2016

Online system opens for abstract submission (oral and poster presentations)

15 DECEMBER 2016

Online registration opens

12 MAY 2017

CLOSED deadline for abstract submission (oral and poster presentations)

2-5 JUNE 2017

Presenters notified of acceptance/rejection

23 JUNE 2017

Deadline for accepted presenters to register and complete registration payment to the IWA-ASPIRE 2017.

28 JULY 2017

Deadline for accepted presenters to submit full paper and short biodata

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