Drivers in Courtice should prepare for major delays and detours as the Region of Durham kicks off a large sewer project on Trulls Road that will stretch from July 6, 2026 to late 2028. The work will bring daytime lane restrictions from 100 metres south of Bloor Street to Adelaide Avenue, and multiple full road closures are expected over the nearly two-and-a-half-year timeline.
The Region of Durham says the job involves putting in about four kilometres of new trunk sanitary sewer pipe, much of it using underground microtunnelling methods. The route runs along Trulls Road from approximately 60 metres south of Bloor Street to Adelaide Avenue, then continues along Adelaide to Niddery Street. The project also includes new watermains, temporary sewer lines to keep service flowing, and removal of old pipes.
While the work is underway, posted detour routes will guide drivers around the closures. The Region stresses that businesses along Trulls Road will stay open, and extra support for business owners is available at durham.ca/OpenForBusiness. Residents can track the construction and traffic in real time at durham.ca/TrafficWatch.
This is Phase 4 of the multi-stage Courtice Trunk Sanitary Sewer project. Phases 1 through 3 are finished, and a fifth phase along Adelaide Avenue and Townline Road is already being designed and could start in 2028.
The new sewer is more than just a local upgrade. The Region says south Courtice has been unable to grow for years because it lacked proper sanitary sewers. The new line will finally unlock the planned Courtice Transit-Oriented Community around the future Courtice GO Station. That plan, adopted by Clarington council in late 2025, calls for roughly 16,800 new homes, over 8,000 jobs, 13 parks, and several new schools.
