# Quebec SEAO #20175307

Hydro-Québec dam reconstruction design-build qualification

**Posted:** October 07, 2026
**Respond By:** November 04, 2026
**Identifier:** 20175307
**NAICS:** 237990

Hydro-Québec is qualifying design-build suppliers to reconstruct two dams in Quebec’s Bas-Saint-Laurent region.
- **Government buyer:** Hydro-Québec.
- **Opportunity:** Design-build reconstruction of the Mitis and Mistigougèche dams. This is a supplier qualification stage before a subsequent call for proposals; Hydro-Québec may qualify no more than three suppliers.
- **OEMs and vendors:** No OEMs, product vendors, or named suppliers are identified.
- **Products and quantities:** No equipment, part numbers, or product quantities are specified; the requirement is for reconstruction services at two dams.
- **Notable requirements:** Suppliers must meet applicable legal and contractual requirements, including French-language compliance and applicable Quebec certificates, licences, and authorization to contract. A declaration of current ISO 9001 certification is also required.
- **Indicative value:** $80 million to $100 million, including options; the estimate is non-binding.

### Description

Hydro-Québec is seeking qualified suppliers for the design-build reconstruction of the Mitis and Mistigougèche dams in the Bas-Saint-Laurent region of Quebec. This qualification process is the first step toward selecting a design-builder; only qualified suppliers may participate in the subsequent call for proposals. Qualification files must meet the stated legal and contractual requirements and pass the commercial and technical evaluation at the minimum passing score. Hydro-Québec reserves the right to qualify no more than three suppliers.

[View original listing](https://seao.gouv.qc.ca/avis-resultat-recherche/consulter?ItemId=507bcf6a-a6fb-449e-b593-189ce5961734)