Wagita Concrete Dam Rehabilitation

The Wagita Concrete Dam Rehabilitation project, issued by the Government of Ontario Ministry of Natural Resources, involves comprehensive structural repairs and upgrades to the Wagita Bay Concrete Dam. The scope of work includes the design and installation of temporary cofferdams and dewatering and flow diversion systems, partial-depth concrete demolition and repairs, removal of existing concrete down to bedrock, foundation grouting, and the construction of a new concrete gravity dam section. Additionally, the contractor is responsible for the supply and installation of post-tensioned anchors and the design, procurement, and installation of a new slide gate. The procurement process utilizes a best score awarding strategy based on a technical and commercial evaluation. Technical scoring focuses heavily on the Construction Execution Plan, proposed concrete works, and the qualifications of key personnel, including a Project Manager, Superintendent, and specialized supervisors for anchoring, cofferdams, concrete, and grouting. To avoid disqualification, proposed personnel must meet a minimum experience threshold, with higher scores awarded to those with over ten years of experience and a proven track record on projects exceeding ten million dollars. Bids must be submitted electronically via the Ontario Tenders Portal by January 15, 2027. The contract structure consists of both lump sum and unit price components. Requirements for the successful bidder include the provision of a bid deposit, performance securities, proof of insurance, WSIB coverage, and tax compliance. Quality assurance will be managed through the submission of a comprehensive quality management plan and oversight by independent inspection agencies.