Subsurface Utility Engineering (SUE) in British Columbia

Subsurface Utility Engineering (SUE) is a professional engineering service that systematically manages the risk of utility conflicts during design and construction. SUE follows the ASCE 38-22 standard, which defines four quality levels of utility data ranging from QLD (desktop records research) to QLA (exposed utility verification). Our SUE services are typically engaged during the design phase of major infrastructure projects — road widenings, pipeline installations, building developments, and municipal infrastructure upgrades. We provide all four quality levels of utility data, from records research through field geophysical investigation to test-hole exposure and verification. Our SUE deliverables include CAD-compatible utility maps with quality level designations, conflict analyses, and risk management recommendations.