BHC Consultants (as a member of a larger consulting team) provided preliminary engineering, design, coordination, and engineering support during construction of the public utilities required to serve the existing 280-acre Boeing site planned for redevelopment as part of the South Lake Washington Roadway Improvements Project.

BHC Consultants was responsible for designing stormwater system improvements to accommodate the drainage collection, treatment, and conveyance required for the redevelopment of the project area. System improvements included 16,000 feet of 12- to 60-inch storm drain collection and conveyance piping, catch basins, water quality treatment facilities, wet vaults and oil/water separators, existing facilities adjustments, and temporary erosion and sedimentation control (TESC) BMPs required to support the proposed project roadway improvements. Existing stormwater collection and conveyance facilities (both City and Boeing systems), including trunk conveyance pipelines and outfalls were utilized as much as reasonably practical within the design of system improvements.