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
    • Products Page
    • Media Kit
  • Conferences
    • BTS Conference and Exhibition
    • Cutting Edge 2021
  • Buyer’s Guide
  • Events Diary
  • Jobs
  • About Us
  • Contact Us
  • Podcast

Home > HMM scoops design of Canada's largest wastewater outfall tunnel

HMM scoops design of Canada's largest wastewater outfall tunnel

Amanda Foley

Written by Amanda Foley on 19/10/2015 in News

Tagged:

Hatch Mott MacDonald (HMM) has been selected by the City of Toronto to provide detailed design and construction administration services for a new tunnel outfall that will convey treated effluent from its Ashbridges Bay Treatment Plant into Lake Ontario.

“The Ashbridges outfall project will draw on HMM’s strengths in tunneling and in wastewater treatment,” said Michael Schatz, HMM’s Managing Director for Canada. “We are proud to have won several awards for our work on the Keswick Effluent Outfall in Lake Simcoe and we will bring the same care and expertise to this new challenge.”

The new outfall will be built to replace an older outfall and will be the largest wastewater outfall in Canada, conveying up to 1,040 million gallons per day (3,920 million liters per day).

The project will require the mining of a tunnel 2.2-miles (3,500 meters) long and 23 feet (7 meters) in internal diameter through rock beneath the lakebed. The project also includes a drop shaft, a connection to lakebed risers constructed by barge from the lake above, and land-based plant connections.

The design and investigations phase of the project work is planned through the end of 2017, with construction starting in the first quarter of 2018 and likely extending to the end of 2022.

Comments:

Leave a Reply Cancel reply

Your email address will not be published.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

Search

Digital Edition

More Like This

24/09/2020

Successful TBM launch on the Chouer to Liao River Diversion Project

Successful TBM launch on the Chouer to Liao River Diversion Project

September 10, 2020, saw the successful launch of the 5.2m diameter CREC667 TBM, named Peaceful Grassland, which will be used…

05/08/2020

UK clients look to new procurement routes

UK clients look to new procurement routes

Contractor Skanska rounded up some heavy hitters from the UK’s infrastructure clients to look at how the construction industry is…

02/12/2020

Longest Thames Tideway drive breaks through

Longest Thames Tideway drive breaks through

The Ferrovial and Laing O’Rourke JV has completed tunnelling on the final 7.6km long drive on the central section of…

  • 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