Jefferson East Sewer Separation Project
The City of Winnipeg is changing the existing combined sewer system in order to alleviate basement flooding and reduce the number of combined sewer overflows in the Seven Oaks area.
The Jefferson East Combined Sewer Relief and Combined Sewer Overflow Abatement Study was completed in 2009. The study determined that the current level of service (LOS) for the district's combined sewer capacity was below the five year return period design storm.
Construction of new land drainage sewers (LDS) in the Jefferson East combined sewer district will convey wet weather runoff in a new land drainage system, improving the LOS. The proposed sewer separation works will be carried out over a number of years requiring a total of 11 Contacts within the Seven Oaks area.
Construction of combined sewer overflow and basement flood relief works in the Jefferson East combined sewer district commenced in September 2012 with Contract 1. To date, five contracts have been completed with a total committed investment of $29 Million. Six more construction contracts are still required to complete the Jefferson East sewer separation works. Details of the current contracts are as follows:
Contract No. 5
- Contract start date: 2020
- Completion date: 2021
- Cost of contract: $17.4 Million
- Scope of work:
- A new LDS trunk was installed along Semple Avenue from Scotia Street to the McKenzie Street by a trenchless tunnel method to minimize above ground disruption and impact to local residents and the public at large.
Data values on this page are representative of work completed as of December 31, 2021.