Neil Kimsey Regional Pump Station & Force Main Upgrade
Grayling Engineers is proud to lead the $20 million Neil Kimsey Regional Pump Station and Force Main Upgrade Project, a multi-year investment in the Discovery Corridor Wastewater Transmission System (DCWTS).
Spanning four years, this project will expand system capacity to support continued residential and commercial growth in Ridgefield and the surrounding service area. The work includes installing more than 17,000 feet of 22-inch force main, constructed parallel and adjacent to the existing pipeline, to convey flows from Ridgefield to the Salmon Creek Wastewater Treatment Plant.
In addition to capacity expansion, the project focuses on long-term system reliability and resilience. Services include trenchless design through the NE 179th Street interchange, coordination with WSDOT and Clark County roadway improvements, geotechnical investigation, transient and rupture analysis, and evaluation of operational strategies to support year-round performance.
Wastewater Pipeline and Pump Station
Hydraulic and surge analysis, pump and force main evaluation, constructability review, air valve placement and sizing, and coordination during preliminary and final design.
Clark Regional Wastewater District, WA