sewers were built on Yonge Street from the Henderson Sewage Pumping Station to south of Elderberry Trail and Hunters Glen Road, using opencut construction. Now in the commissioning phase, completion of the entire project is on the horizon. Jose Manalo P.Eng., PMP, Project Manager, Capital Planning and Delivery, Public Works, highlights the Caisson construction technique for constructing the wet well. “The 22-metre deep wet well used a caisson construction technique which involves excavating material inside the caisson shaft; excavation from inside the caisson coupled with downward force, due to self-weight, allows the caisson to sink downwards in a controlled fashion,” he says. “Each section of wall is constructed at ground level and then progressively sinks under its own weight as the ground inside the shaft is excavated,” says Manalo. “This was the first time York Region utilized this technique for building a pumping station wet well.” The project also includes the Tamarac Park restoration and customer services. This Restoration work was scheduled until after the Henderson Sewage Pumping Station construction was complete to ensure no interruption or damage to restoration work. Tamarac Park restoration is now complete and the park entrance provides an opportunity for residents to connect with nature. “The Henderson Sewage Pumping Station supports Process valve room in construction 83 AUG 2023 | BUSINESS ELITE CANADA
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