Downtown Redmond Way Stormwater Treatment Facility

Vicinity Map


Location: Redmond Way and Sammamish River
Project Phase:
Construction Complete
Contact: Mike Haley, PE, Project Manager, 425-556-2723
Description:  As part of its regional treatment system, the City constructed a treatment facility for stormwater runoff from downtown Redmond. Construction included:
  • Installation of more than 900 feet of stormwater trunk line in Redmond Way that will out fall to the Sammamish River
  • Removal of existing oil / water separator in the West Gate Building parking lot and installation of a flow control vault, swirl concentrator, pump station, and media cartridge filter vault
  • Repair of asphalt pavement, curb, gutter and sidewalk in Redmond Way and the West Gate Building parking lot
  • Reconstruction of sanitary sewer from Redmond Way to the King County Metro line adjacent to the Sammamish River
  • Relocation of buried franchise utilities infrastructure in Redmond Way
  • Repair and restoration of the habitat features along the Sammamish River bank
Redmond Way Stormwater Treatment Facility