Client: Regional District of Nanaimo
Location: Nanaimo, BC
Budget: $75,000
Challenge: Designing for construction in a rock trench while maintaining traffic flows

The Regional District of Nanaimo had planned to construct new infrastructure in the Regional District of Nanaimo Landfill. The infrastructure consisted of new berms facing Cedar Road, a new administration building near Cedar Road, and a new garage/truck wash facility near the south east portion of the site.

During the planning of the infrastructure, it became apparent that in order to maintain traffic flows throughout the facility, some of the underground services would need to be installed in advance of the construction of the new structures. As a result, the District opted to move ahead with the installation of watermains and storm sewers in 2013.

XCG was retained by the District to carry out detailed design and tender preparation for 340m of new watermains, 260m of new storm sewers and 60m of new ditching in the Landfill.

As part of the project, XCG had an engineering survey conducted of the access road and infrastructure to integrate into existing CADD models. As well, the facility has very little overburden so a geotechnical investigation was conducted to determine the type and depth of soil and bedrock.

The watermain design consists of both 200mm diameter HDPE mains for fire service and 50mm diameter HDPE mains for potable water service complete with backflow prevention, hydrants, valves and blow-offs (standpipes). The storm infrastructure design consists of 600mm and 750mm diameter double-walled HDPE storm sewers with headwalls, 7 manholes, seepage collars, culverts and lined ditches. A large portion of the infrastructure will be installed in rock trenches that will be constructed using blasting methods.

XCG prepared a tender package including plan and profile drawings, detail drawings,  front end document  and specifications.

Elisabeth Mance
Elisabeth ManceProject Manager

EXPERT PEOPLE. BETTER DECISIONS.

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