# York Bids and Tenders #RFTC-3950-26-27-133

Holland River Tributary Culvert Replacement in Newmarket

**Posted:** October 02, 2026
**Respond By:** November 04, 2026
**Identifier:** RFTC-3950-26-27-133
**NAICS:** 237310, 237990

The Regional Municipality of York is seeking a contractor to replace a culvert beneath Yonge Street in Newmarket.
- **Government buyer:** The Regional Municipality of York; no sub-agency or specific office is identified.
- **Requested work:** Replace the Holland River Tributary Culvert under Yonge Street, between Bennington Road and St. John’s Sideroad, in the Town of Newmarket.
- **Notable requirements:** Complete specified sensitive habitat restoration work using an appropriately prequalified subcontractor, and meet the stated Occupational Health and Safety Management System certification requirements.
- **OEMs and vendors:** No product OEMs or supplying vendors are named; this is a construction-services opportunity.

### Description

The Request for Tenders seeks bids to replace the Holland River Tributary Culvert under Yonge Street, between Bennington Road and St. John’s Sideroad, in the Town of Newmarket. The work is scheduled for the 2027 construction season and has a stated duration of five months. Only contractors prequalified under RFPQ-2841-25 may submit bids, and specified sensitive habitat restoration work must be completed by subcontractors prequalified under RFPQ-1152-23 and RFPQ-2425-25. Electronic submissions are required, along with the specified OHSMS certification, a digital bid bond of at least 10% of the subtotal contract amount, and a digital undertaking to bond.

[View original listing](https://york.bidsandtenders.ca/Module/Tenders/en/Tender/Detail/64ef3f4c-1e4e-4b7c-9083-aee1b2e7e8bc)