Maintenance Activities case study: servicing 1500 mm diameter fitting Toronto Water is responsible for the operation and maintenance of the 35 km long Mid-Toronto Interceptor (MTI) sewer system. This sewer ranges in size from 1500 mm to 3050 mm diameter and includes some 65 large diversion, control, and vortex chambers. Toronto Water retained [...]

Focussed Investigation case study: flow control structures In the City of Toronto, the combined sewer system within the downtown core is controlled through a series of flow control structures including weirs, gates and overflow pipes. Some structures include modern, remote-controlled gates while others include turn-of-the-century brick weirs.Andrews.engineer was retained to carry out the [...]

Sewer Rehabilitation Project Management case study: sewer rehabilitation program management The City of Toronto, the largest city in Canada, operates an extensive network of local and trunk sewers. In 2021, Andrews.engineer (A.E) was retained by Toronto Water to manage and execute Toronto Water’s Sewer Rehabilitation Program (SRP) for a three-year term. The program [...]