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Vanalman Avenue Upgrades


Saanich, British Columbia





Land Use & Community Planning

Transportation Planning


The District of Saanich retained Associated Engineering to provide engineering services for water, sewer and storm main and servicing replacement as well as roadworks and traffic calming on Vanalman Avenue.

This included works Vanalman Avenue, located between Mann Avenue and Commerce Circle. Vanalman Avenue is a collector roadway with concrete curb and sidewalk on either side and acts as a BC Transit route. Associated Engineering coordinated with Saanich’s Transportation Department in order to determine the extent of curb and sidewalk replacements, as well as the limits of full-depth road structure replacement and traffic calming measures.

Associated Engineering performed a pre-engineering analysis to confirm water main sizing, size storm and sanitary sewer main pipes, compile background data and prepare complete digital base plans. The project involved preliminary and detailed engineering design for watermain, storm and sanitary sewer main replacement and obtaining the required Island Health Authority (IHA) approvals.

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The District of Saanich

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Project Highlights

The scope of work involved detailed design, tender, contract administration, and resident inspection services to complete replacement of water, sewer, and storm mains as well as services to approximately 70 homes and the Church on Mann Avenue. It also included gravity services through narrow easements with multiple properties served off small mains, including one which required trenchless replacement of both the sanitary and storm mains.

Environmental protection was paramount to protect Colquitz Creek, so AE performed daily reviews to ensure environmental compliance.

Issues and Challenges:

  • During construction, unsuitable clay fill was discovered in utility trenches.

Solutions and Innovations

  • AE included optional work items in the contract to establish unit rates for removal of unsuitable material, limiting the cost impacts.