Erosion Protection and Drainage Control

Project Type: Erosion protection and drainage-control review- Several Locations
Location: Western Canada, Vancouver
Client / Delivery Model: AGATETEC provided geotechnical engineering support for a BC Hydro project through TEEMA, the contracting and staffing partner. AGATETEC’s role included assigned geotechnical design input and technical review related to utility clearances, erosion protection, drainage control, soil support, and constructability considerations. The client required geotechnical input to support erosion protection, surface-water control, and long-term performance of exposed or water-affected ground conditions.
AGATETEC Scope:
AGATETEC provided geotechnical design input for erosion protection and drainage control within a constrained underground utility corridor. The reviewed design included existing water and sewer pipes, a concrete-encased duct bank, utility clearance requirements, pit sand, and surrounding native soil. The primary geotechnical concern was the potential for erosion, washout, loss of bedding support, and long-term deterioration around the buried infrastructure. AGATETEC reviewed the utility geometry, pipe and duct elevations, clearance limitations, bedding conditions, drainage pathway, and erosion-sensitive areas, and developed practical recommendations for riprap protection, soil support, and moisture control compatible with the existing site constraints.

Outcome / Engineering Value:
The design support helped reduce erosion and washout risk, improve drainage control, protect buried infrastructure, and maintain long-term serviceability of the utility corridor. The recommendations provided a practical and constructible approach for managing water-related ground deterioration while respecting existing utility clearances and subsurface constraints.