SR 503 Intersection Improvements

Client—City of Woodland, Washington

Gibbs & Olson was part of the design team selected for the new SR 503 and East Scott Avenue roundabout intersection. The new intersection improves safety, traffic mobility, and pedestrian access. Gibbs & Olson provided stormwater and utility design for water and sewer replacement, surveying, and permitting support. The stormwater improvements included installation of curb and gutter to prevent runoff to the surrounding properties. A 2,100 square foot bioretention pond was constructed to address water quality requirements. The new closed drained stormwater collection system includes catch basins, storm drain manholes, and 1,350 feet of 12 and 15 inch HDPE storm drain pipe. The $2.23 million TIB grant funded project was completed in September 2015.