Puget Sound Energy

Ebey Slough Transmission Line Rebuild Project, WA

Wilson removed and rebuilt a two-mile portion of two single-circuit transmission lines to double-circuit. The existing lines were in a tidally-influenced, partially-inundated wetland and were rebuilt within the existing right-of-way. Specialized equipment was used to construct micropile foundations and move materials from site to site within the wetlands. Multiple permits were obtained to work in wetlands, and daily monitoring and inspections were performed to monitor turbidity and dissolved oxygen.

Wilson developed a Storm Water Pollution Prevention Plan (SWPPP) for the project and was responsible for its implementation. Wilson installed erosion and sediment controls in the wetland to contain turbid water and prevent discharges from occurring. Construction operations at jobsites were carefully planned to minimize impacts on wetlands.