GRAVITY SEWERS
York Downs Sanitary Sewer
Scope of work completed:
- Installation of 340m of HDPE lined 1200mm sanitary sewer by Microtunnel saturated silty-sand ground conditions with drive lengths of 45m and 280m.
- Tunnel crossed beneath Bruce Creek with just 2m of cover.
- All pipe joints inside the HDPE lined microtunnel were welded using specialist HDPE cap strips and extrusion welding equipment.
- Connection to live YDSS sewer at Yorkton Blvd by hand tunnelling.
- Location: Markham, Ontario
- Owner: City of Markham
- Role: General Contractor
- Project timeline: August 2023 - Present