Site work for a civil project in Newmarket, Ontario. Completed plans call for site work for a water / sewer project.

The Regional Municipalities of York and Durham are working together to implement the York Region Sewage Works Project, a long-term wastewater infrastructure project across the Towns of East Gwillimbury, Newmarket, Aurora, Ajax and the Cities of Richmond Hill, Markham and Pickering. The North YDSS Expansion Project is a part of the overall York Region Sewage Works Project and will be implemented in three phases. A preliminary list of project components in each delivery phase of the North YDSS Expansion Project is provided in Figure 1 - North YDSS Expansion Project below. Phase 1 of the North YDSS Expansion Project is further divided into two-part(s) consisting of seven (7) project components. This RFPQ focuses on the North York Durham Sewage System (YDSS) Expansion Phase 1 - Part 1 project components which are described in detail in Section 2 - Project Overview. The CMAR services for North YDSS Expansion Phase 1 - Part 1 project components include the design and construction of five (5) project components by end of 2028 to support growth in the Town of East Gwillimbury, Town of Newmarket, and Town of Aurora. The total construction cost of the project is estimated to be in the range of $150M to $200M, subject to the final scope of work, available funding, and approval by Regional Council. Project Milestone: Anticipated Release of CMAR RFP: October 2025 Anticipated Award of CMAR Contract: November 2025 Anticipated Commencement of Preconstruction Services: December 2025 Anticipated Commencement of Construction Services: Q3 2026 Anticipated Substantial Performance of the CMAR Contract: Q3 2028 Documents can be obtained at: https://york.bidsandtenders.ca *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document.