Dawson City Wastewater Treatment Plant

Allnorth is a key player in this Design-Build project to deliver the civil and structural design and engineering for a Wastewater Treatment Plant in Dawson City, Yukon. The Design-Build team consists of ten companies with a multi-discipline scope under the lead of Corix Water Systems. The Yukon Government acts as the owner who, in turn, will hand over the plant to Dawson City once the Wastewater Treatment Plant is designed, constructed, commissioned and tested. The team also worked with an owner’s representative who reviewed the engineering scope of the project. Allnorth coordinated the with the construction, drillers and installation contractors for the project which includes the Tr’ondek Hwech’in First Nations as part of the team.

The Wastewater Treatment Plant was designed to service Dawson City’s 4,200 residents during the summer months. In addition to the complex building foundations, the plant has key concrete components consisting of two in-ground clarifiers measuring 6.0m x 24.0 m each, two head tanks at 4.0m x 4.6m x 7.5m each and a UV tank at 13.0m X 4.0m. The plant also included two 38” dia, x 95.0 m deep Aeration Process Shafts that interfaced at the base of the Head Tanks.

Client: Corix Water Systems

Responsibilities:

• Civil/Structural Engineering
    – Building and Equipment
    – Foundations
    – Clarifier Tanks
    – Head Tanks
    – UV Tanks
    – Influent Lift Station
    – Building Structure
• Surveying
    – Site Preparation
    – Construction

Project Location: Dawson City, Yukon

Project Delivery:

• Engineering – May 2010
• Construction – March 2010

Project Cost: $25 Million

Dawson City Wastewater Treatment Plant.pdf