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 2023
  • Buyer’s Guide
  • Events Diary
  • Jobs
  • About Us
  • Contact Us
  • Podcast

Home > Bessac awarded Annacis Island Outfall

Bessac awarded Annacis Island Outfall

Tris Thomas

Written by Tris Thomas on 29/09/2019 in News

Tagged:

Bessac and its joint venture partner Pomerleau Inc, has been awarded a CA$184 million contract by Metro-Vancouver to construct a new outfall pipeline from the Annacis Island Wastewater Treatment Plant (WTP) to the Fraser River, in Vancouver, Canada.

AO ProjectMap

The scope of works for the project consists of the construction of two 40m deep shafts, one at 15m and one at 10m diameter, inside the WTP; two 4.20m internal diameter segmentally lined tunnels (200m and 580m long); a river riser in the Fraser River; a 280m long, 2.5m diameter, diffuser buried in the Fraser River bottom; and a new water control structure.

The Annacis Island Wastewater Treatment Plant is one of the region’s largest wastewater treatment facilities. Metro Vancouver is increasing the capacity of the current facility to meet the needs of the region’s growing population.

The new outfall location and design will ensure that treated effluent is spread out over a broad area underwater to maximize dilution and minimize the impact on the environment. Once the new pipe is complete it is expected to meet the regional growth needs for the next 100 years while ensuring greater seismic resilience and continuous, reliable and safe management of liquid waste.

Comments:

Leave a Reply Cancel reply

Your email address will not be published.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

Search

Digital Edition

More Like This

13/09/2023

Work begins on HS2’s longest green tunnel

Work begins on HS2’s longest green tunnel

The UK’s HS2 has begun assembling the project’s longest ‘green tunnel’ – designed to blend the high speed railway into…

13/06/2023

New USA and Canada Master Builders Solutions President announced

New USA and Canada Master Builders Solutions President announced

Dr. Bruce J. Christensen has been named President of Master Builders Solutions in the USA and Canada with i​​​​mmediate effect….

17/07/2023

EPBM launched on Turkey’s Halkali-Ispartakule rail project

EPBM launched on Turkey’s Halkali-Ispartakule rail project

July 11, 2023, saw the 8.54m diameter “CREC 1148” EPBM designed and manufactured by China Railway Engineering Equipment Group Co….

  • 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