Western Interceptors

Western Interceptors

Project Manager

Water Utilities Engineering / Shannon Wilder

SUA Project No. 19SL02

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What We're Doing

The City of Stillwater and Stillwater Utilities Authority is evaluating the feasibility of eliminating up to eight sewer lift stations by building new gravity sewer interceptors, as recommended in the City's Master Plan.

Anticipated Milestones

  • Anticipated Date (Design): Design began February 2019
  • Anticipated Date (Construction): FY2021
  • Anticipated Date (Completion): FY2023

Benefits of the Project

Eliminating lift stations reduces the maintenance costs associated with each lift station and reduces or eliminates odor problems that typically occur near lift stations. Additionally, the new interceptors could provide access to the City's sewer gravity system for new developments in the western regions of the City.

Budget & Funding

  • Year Funded: FY2019
  • Funding Source: Wastewater Fund
  • Project Budget: $260,000 for design
  • Expenditures to date: $238,000 

Project Management


February 14, 2019: HDR Engineering, Inc. was hired to provide design services.

March 23, 2019: Project kickoff meeting was held between HDR and City staff to discuss the project scope.

August 12, 2019: HDR and City staff met to review alternatives for the sewer interceptor alignments and discuss cost benefit scoring. 

October 30, 2019: HDR submitted the draft Preliminary Design Report for staff review. 

December 17, 2019: Staff reviewed the Report and provided comments to HDR to incorporate into the final report.

January 22, 2020: Final Report expected to be received early February.

March 9, 2020: Staff are currently reviewing the final report. 

May 29, 2020: Staff have reviewed the final report and submitted comments to HDR

Actions authorized by Stillwater Utilities Authority (SUA):

  • 2.11.19  | SUA-19-03 |  Authorization of Professional Services Agreement


Map of Western Interceptor Proposal