City of Port Angeles, Combined Sewer Overflows (CSO) Reduction Phase II

Project overview

Based largely on Vanir’s performance and the success of the CSO Phase I project, our team was selected for construction management services for Phase II. This project served as the final phase of the City’s CSO Reduction Plan for reducing sewer overflows into the Strait of Juan De Fuca.

The second phase included:

  • Replacement of Pump Station 4 with a new 28 MGD pump station
  • Construction of a new influent sewer to divert flow from the existing Pump Station 4 to the new pump station
  • Construction of 2,600 linear feet of new gravity diversion sewer
  • Construction of approximately 1,200 linear feet of new force mains
  • Stormwater improvements, filtration, temporary storm and groundwater treatment and monitoring prior to discharge
  • Installation of approximately 1,000 linear feet of new storm drains

This project will have long-term benefits to the community with improved harbor water quality and greatly reduced CSO events.



American Public Works Association – 2018 Project of the Year Award

Port Angeles, Washington
City of Port Angeles

Brown and Caldwell


TEK Construction

Square Footage
Pump Station: 8,032 SF
Construction Cost
$15 Million
Start Date
Completion Date