# Ontario Tenders #tender_22017

Wagita Bay Concrete Dam Rehabilitation

**Posted:** September 29, 2026
**Respond By:** January 15, 2027
**Identifier:** tender_22017
**NAICS:** 237990, 238110, 238190

The Government of Ontario is seeking a contractor to rehabilitate the Wagita Bay Concrete Dam near Atikokan, Ontario.
- **Government buyer:** Government of Ontario, Natural Resources, Ministry of Natural Resources, Atikokan-Dryden-Fort Frances District.
- **Requested work:** Design and install temporary cofferdams and a dewatering and flow-diversion system; perform partial-depth concrete demolition and repairs; remove part of the existing dam down to bedrock; complete foundation grouting; construct a new concrete gravity dam section; and supply and install post-tensioned anchors.
- **OEMs and vendors:** None are named. No product part numbers or purchase quantities are provided.
- **Notable requirements:** The work combines temporary water-control measures, structural concrete rehabilitation, foundation work, and installation of post-tensioned anchors.

### Description

The project is for rehabilitation of the Wagita Bay Concrete Dam, a gravity dam located near Atikokan, Ontario. The work includes designing and installing temporary cofferdams and a dewatering and flow diversion system, concrete demolition and repairs, removal of part of the existing dam to bedrock, foundation grouting, and construction of a new concrete gravity dam section. It also includes supplying and installing post-tensioned anchors. The estimated initial contract term is 18 months, and a mandatory site meeting is scheduled for October 21, 2026.

[View original listing](https://ontariotenders.app.jaggaer.com/esop/nac-host/public/web/login.html)