Abstract
Infrastructure development in topographically challenging and urbanized regions such as British Columbia’s Lower Mainland demands a high level of precision and risk mitigation. In areas like White Rock, where terrain can exceed a 23% slope, conventional utility investigation methods fall short. This paper presents a Subsurface Utility Engineering (SUE) investigation conducted to support the installation of Metro Vancouver’s new force main infrastructure. The project required specialized techniques to map and classify subsurface utilities with a high degree of accuracy in a constrained and sloped urban environment. The investigation demonstrates how SUE enabled the municipal owner to make informed decisions, mitigate risk, and execute construction with confidence and safety.
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