# Quebec SEAO #20157358

Construction of Blue Line Extension Auxiliary Structures SA1, SA2, and SA3

**Posted:** July 07, 2026
**Respond By:** October 27, 2026
**Identifier:** 20157358
**NAICS:** 237990

The Société de transport de Montréal (STM) is seeking a contractor for construction work on the Montréal metro Blue Line extension.
- **Government buyer:** Société de transport de Montréal (STM); no sub-agency or specific office is identified.
- **Scope:** Construction of auxiliary structures SA1, SA2, and SA3 for lot CI32 of the Blue Line extension.
- **Duration:** 36 months; specific start and end dates are not provided.
- **OEMs and vendors:** No manufacturers, OEMs, or construction vendors are identified in the opportunity.

### Description

Société de transport de Montréal (STM) is seeking bids for lot CI32 of the Blue Line extension: construction of auxiliary structures SA1, SA2 and SA3. The contract is for construction work, with a stated duration of 36 months. Bids are to be submitted electronically through SEAO, and the response deadline is October 27, 2026. The estimated value is not disclosed.

[View original listing](https://seao.gouv.qc.ca/avis-resultat-recherche/consulter?ItemId=033e2d63-2e0c-4d85-949a-652753c6ab19)