Project Components
The water supply line replacement project consists of several components:
New Water Supply Line: The new 24-inch water supply line will run from the Boat Ramp area, heading north on East Mercer Way, west on SE 36th Street, and southwest along SE Gallagher Hill Road to SE 40th Street, continuing east on SE 40th to 92nd Ave SE. Additionally, the project will involve relocating the SPU master meter and upsizing an existing 12-inch water line section of supply line at the intersection of 89th Avenue SE and SE 43rd Street to 24-inch pipe.
AC Watermain Replacement: Approximately 1,500 feet of existing 8-inch and 10-inch AC pipeline will be replaced, as well as the replacement of a large Pressure Reducing Valve (PRV) at the bottom of SE Gallagher Hill Road. Additionally, the project will extend the pipeline to the top of SE Gallagher Hill Road and establish a new connection at the intersection of SE 40th Street and SE Gallagher Hill Road.
Roadway Improvements: Roadway improvements will be constructed, following the water supply line installation, testing, and startup. The scope of these improvements include:
SE 36th Street (Gallagher Hill Road to East Mercer Way) – Restore sidewalks removed for pipeline construction, upgrade all sidewalk ramps to meet current ADA standards, mill and repave the roadway with a hot mix asphalt (HMA) overlay, raise utilities to grade, and install new pavement markings.
Gallagher Hill Road (SE 40th Street to SE 36th Street) – Construct new curb and sidewalk along the east side (downhill lane), provide a paved shoulder suitable for bicycle use on the west side (uphill lane), install a HMA overlay, raise utilities to grade, and install new pavement markings.
SE 40th Street (Gallagher Hill Road to 93rd Avenue) – Construct new curbs and sidewalks on both sides, install bike lanes on both sides, install a HMA overlay, raise utilities to grade, and install new pavement markings. Together, these improvements will repave approximately 0.9 miles of arterial roadways.
Shorewood Apartment Connection: Two connections and master meters will be installed to provide water service to Shorewood Apartments.
