tunnelling-journal (1)
tunnelling-journal (1)
  • Home
  • Print
    • Subscribe
    • Tunnelling Journal
    • Breakthrough
    • ITA Activity Report
    • A&NZ Journal
    • WTC Preview
    • Media Kit
  • Digital
    • Newsletter
    • E-Shots
    • TJ Digital edition
    • Products Page
    • Media Kit
  • Conferences
    • BTS Conference and Exhibition
    • Cutting Edge 2022
  • Buyer’s Guide
  • Events Diary
  • Jobs
  • About Us
  • Contact Us
  • Podcast

Home > DTSS 2 pre-qualification for 50km of tunnels to start

DTSS 2 pre-qualification for 50km of tunnels to start

Tris Thomas

Written by Tris Thomas on 06/04/2016 in News

Tagged:

Singapore’s national water agency PUB will be calling two open pre-qualification exercises in April to pre-qualify consultancy firms and construction companies with relevant experience and capabilities to build two key components of the city’s Deep Tunnel Sewerage System (DTSS) Phase 2. The first exercise will be called on 8 April 2016 to pre-qualify consultancy firms to provide professional engineering services for the design, and supervise the construction and commissioning of the Tuas Water Reclamation Plant (WRP). A highlight of DTSS Phase 2, Tuas WRP will treat 800,000m3 of used water a day. The compact plant will also incorporate technologies to improve its energy efficiency, reduce waste, and will be highly automated to minimise manpower needs.

The second pre-qualification exercise will be called on 29 April 2016 for construction companies to design and construct some 50km of sewer tunnels and their associated shafts and manholes. These sewer tunnels will extend the existing deep tunnel system to serve the western part of Singapore.  This consists of about 40km of deep tunnel sewers and 10km of link sewers to be constructed using tunnel boring machines.

“We are looking for industry partners with established track records to take us another step closer to the completion of DTSS Phase 2. This is an opportunity for the industry to participate in the delivery of one of the world’s most anticipated water infrastructure projects that will ensure Singapore’s water sustainability for generations to come,” said Mr Yong Wei Hin, Project Director, DTSS Phase 2, PUB.

The pre-qualification documents will be available on Government Electronic Business Portal (GeBiz) at http://www.gebiz.gov.sg.

The DTSS is a core water infrastructure which provides a cost-effective and sustainable solution to support Singapore’s continued growth and meet its long-term needs for used water collection, treatment, reclamation and disposal.

The DTSS uses deep tunnel sewers to convey used water entirely by gravity to centralised WRPs located at the coastal areas. The used water is then treated and further purified into ultra-clean, high-grade reclaimed water called NEWater, with excess treated effluent discharged to the sea through outfalls.

DTSS Phase 1, comprising the North and Spur Tunnels, the associated link sewers, the Changi WRP and outfall, was completed in 2008. A NEWater factory, located on the rooftop of the Changi WRP, was built in 2010 to facilitate large-scale water recycling.

Expected to complete by 2025, DTSS Phase 2 will extend the deep tunnel system to cover the western part of Singapore, including the downtown area and major upcoming developments such as Tengah Town. A NEWater factory to be integrated with the Tuas WRP will be built to facilitate water recycling, contributing to the goal of increasing the overall water recycling rate from 30% to up to 55% of total water demand in the long term.

Once Phase 2 is in place, the existing conventional WRPs at Ulu Pandan and Jurong, as well as intermediate pumping stations, will be progressively phased out and the land freed up for higher value development. The implementation of the entire DTSS will result in a 50% reduction in land taken up by used water infrastructure once it is fully completed. DTSS will also streamline the used water network with three centralised collection and treatment points: Changi WRP in the east, Kranji WRP in the north and Tuas WRP in the west.

The joint venture of Black & Veatch + AECOM was appointed as PUB’s Professional Engineering Consultants for the Programme Management Consultants for the DTSS Phase 2 in April 2014. They have since completed Feasibility Studies and Preliminary Design and will assist PUB in the delivery of the overall Programme of work through to completion.

Comments:

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Search

Digital Edition

More Like This

05/12/2022

Société de transport de Montréal launches Blue Line Tender

Société de transport de Montréal launches Blue Line Tender

Project manager and principal contractor of the month $6.4bn Blue line extension, the Société de transport de Montréal (STM) is launching…

10/03/2023

HS2 leg and Lower Thames Crossing face two year delay

HS2 leg and Lower Thames Crossing face two year delay

The UK’s Secretary of state for Transport, Mark Harper, has announced that HS2’s Birmingham to Crewe leg will be delayed…

02/12/2022

Acciona awarded Stage 2 Western Harbour Tunnel contract

Acciona awarded Stage 2 Western Harbour Tunnel contract

Sydney’s historic third harbour crossing has reached another major milestone with the $4.24bn contract to deliver stage two of the…

  • Contact Us
  • Media Kit
  • Magazine Archive

Newsletter

The latest from the Tunneling Journal direct to your inbox.

Social



Enquiries

TGS Media Ltd
The Old Library
Webster House
Dudley Road
Tunbridge Wells
TN1 1LE
United Kingdom

© Tunnelling Journal. All Rights Reserved. Privacy Policy / Terms & Conditions. Admin

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.OkRead more