The project focused on increasing the capacity and reliability of two flow through wastewater pumping stations within the City of Ottawa. Both facilities remained in operation throughout construction, requiring careful planning, sequencing, and coordination to maintain continuous service. The upgrades addressed hydraulic capacity, mechanical reliability, electrical resilience, and controls integration, while working within constrained sites and adjacent to surrounding infrastructure.
At each station, the scope included replacement and reconfiguration of pumping equipment and appurtenances within the wet well, including pumps, guiderails, discharge valves, and associated piping installed both inside and outside the structure. Structural and access improvements were completed through replacement of concrete benching, platforms, ladders, hatches, and wet well cover systems, along with cementitious waterproofing of interior wet well surfaces.
Electrical and instrumentation systems were comprehensively upgraded, including new controls, wiring, equipment, control panels, and protective enclosures. Standby power was enhanced through installation of new natural gas generators within sound attenuated enclosures, providing reliable backup power supported by new electrical distribution components. Additional civil and site works included installation of valve and bypass chamber structures, generator and control cabinet pads, structural steel railings and sunshades, noise barrier walls, FRP access platforms, and full reinstatement of sidewalks, curbs, asphalt, and landscaped areas following construction.
