Updated March 6, 2019
The Inverness Force Main is an 11-mile pressure sewer that carries sewage from northeast Portland to the Columbia Boulevard Wastewater Treatment Plan. The 36-inch line splits into a 20-inch and a 30-inch pipe about two miles east of the plant. Both sections are suspended underneath the Columbia Slough Pedestrian Trail Bridge, which Environmental Services constructed. Repairs to the 30-inch pipe have been completed. Construction is about to begin to make repairs to the 20-inch pipe.
Bike and Pedestrian Bridge Closure
The Columbia Slough Bike/Pedestrian Trail Bridge, located north of the Columbia Boulevard Wastewater Treatment Plant, will be closed to make the sewer pipe repairs beneath the bridge. The closure will be 90 days beginning March 25, 2019. The bridge should reopen by June 23, 2019.
For More Information
If you would like more information about the project or have questions and concerns you’d like to discuss, please call Debbie Caselton at 503-823-2831 or email at Debbie.Caselton@portlandoregon.gov. Please include “Inverness 20” in your voicemail or in the subject line of your email.