Cochran Basin Treatment Facilities – Downriver Disc Golf Course and Downriver Park

Project Number: 2018058 & 2018059

Status: Construction

Construction Estimate: $3,390,485

Project Description: Construction of treatment and infiltration ponds at the Downriver Disc Golf Course (west of Downriver Golf Course) to treat stormwater generated in the Cochran Basin which includes most of north Spokane. This project is funded with state and local funds.

Project Location(s) and Schedule

  • West of Downriver Golf Course to northwest of TJ Meenach Bridge

Schedules to be determined.

Crews will be in the area during the scheduled time frame. All schedules are approximate and dependent on weather and unforeseen delays.

Once the contract has been awarded, contractors will be responsible for setting and maintaining the schedule for the work to be done. If you have questions regarding the construction schedule or the work being done, please contact the contractor's public representative.

Contractors are required to provide two business day's notice to a homeowner/business if the homeowner/business owner's property will be directly impacted by the work. This includes access issues.

Construction Zone Details

  • Planned Detours: None
  • Planned Lane Restrictions: To be determined
  • Planned Road Closures: Access to the Downriver Disc Golf Course and Downriver Park including the boat launch will be closed for the duration of the project.
  • Planned Utility Work: To be determined
  • Pavement Cut Moratorium In Effect: No

Note: the contractor will do its best to minimize impacts on the public, but unforeseen circumstances may result in the need to temporarily revise traffic restrictions. For everyone's safety, please obey all traffic signs.

Construction Start Date: September 2022

Expected Construction Completed Date: May 2023

Contract Award Date: July 2022

Contractor: LaRiviere Inc.

City Project Manager - Construction Phase: Ryan Coles, 509.625.7718,

City Project Manager - Design Phase: Jonathan Adams, 509.625.6700,

Contact Information

For questions or concerns regarding the construction work or the construction schedule, please contact the contractor's public representative:
To be determined

If the contractor's public representative cannot resolve your issue, please contact the City of Spokane - Engineering Services at 509.625.6700 or

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