Tributary C Storm Water Management Facility was a project completed for the City of London. This project was located just off of Wesdel Bourne, creating a new subdivision in a highly sought-after neighborhood. The project consisted of clearing and grubbing, topsoil stripping, earth grading, clay liner, stone rock protection, landscaping, asphalt pathways, concrete headwalls, concrete box culverts, HDPE drainage network, oil and grit separators, and topsoil spreading.
Two major challenges were encountered on this project, the filter stone type and the closure of Oxford Street. The filter stone used within this SWM pond could not be from a local source. The local stone consists of limestone which would raise the PH within the water stream and have an adverse impact to the native fish. L82 Construction, with the assistance of Lafarge, found a granular source in Smelter Bay Ontario which is located North of Manitoulin Island. Lafarge barged in 40,000 metric tonne of 38 mm round stone to the Sarnia docks which was trucked and screened onsite to the desired porosity requirements for the projects. The work along Oxford street consisted of closing the road while we constructed the storm and sanitary sewers, and restored the road. L82 worked around the clock to ensure completion prior to the mandated opening. If L82 had completed this after the deadline, the city of London was to penalize L82 $20,000.00 per calendar day.
We would like to acknowledge everyone involved with this project including The City of London, AECOM, Golders and Associates, Royal Fence, Trueline Services, Dufferin Construction, Demar Aggregates, JK Landscaping, JNF Concrete, Mobil Stripping and Sweeping, GroundMasters Inc., Lafarge Canada, Wosley Waterworks, Forterra Pipe and Precast, and all the businesses and residents for all their cooperation and patients during the construction.
