Ontario tender · Construction
Backfilling of Mine Workings at the Former Rock Lake Mine
Reference number: 120158
Issuing organization: Government of Ontario
Location: Sudbury, ON
Published: 2026-05-29
Closing date: 2026-07-17
Tender details
Carry out permanent rehabilitation of the former Rock Lake Mine by backfilling mine openings, crown pillars, and underground workings. Work includes drilling, placing backfill, constructing plugs, and stabilizing surface and subsurface voids to ensure long-term safety and compliance with Ontario’s Mine Rehabilitation Code and Mining Act. This is a specialized mine closure and civil works project in Sudbury.