MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204
Updated November 15, 2019
Environmental Services is preparing to construct repairs to a public sewer mainline pipe in SW Washington Street between SW Park Avenue and SW 10th Avenue. This project will protect the public and the environment by reducing the possibility of sewage releases and basement flooding in buildings and streets.
This project is part of the larger Downtown-Old Town Sewer Repair Program managed by Environmental Services to assess the condition of and repair the public sewer system serving Downtown and Old Town Portland. The program represents millions of dollars in investments. Ultimately, these improvements will extend the life cycle of downtown sewer infrastructure by more than 50 years.
The public sewer mainline to be repaired is in the north side of SW Washington Street between SW Park and SW 10th Avenue.
In general, work hours are from 7 a.m. to 6 p.m. Monday through Saturday while crews complete pre-construction activities. To reduce public impacts and complete the work as quickly as possible, the actual sewer repair work (to be scheduled in the near future) might be completed at night between 6 p.m. and 7 a.m. Monday through Saturday.
Between now and early November, crews will conduct pre-construction activities before they proceed with sewer repair work. These activities will include the following:
The temporary bypass system currently set up at the northwest corner of SW Washington Street and SW 10th Avenue is diverting stormwater flows from one mainline pipe to another pipe when it rains to help prevent basement flooding and sewer backups. It will remain in place while the city's contractor completes pre-construction activities and develops a plan to repair public sewer pipes.
The numerous paint markings on the pavement indicate the presence of underground utilities, such as communication cables, water lines, sewer pipes, gas lines, and power lines. To understand what each color means, see the graphic to the right.
The construction schedule has not yet been determined.
This area of downtown Portland is currently busy with other construction projects not to be confused with this urgent sewer repair project:
Environmental Services will work directly with the community throughout the course of the project. Community outreach staff will listen to your suggestions and respond to your concerns. We encourage you to:
In the event of a sewer backup or basement flooding, call the Maintenance hotline immediately at 503-823-1700. It is staffed all hours and all days, 24/7.
Including the project description, map and schedule
Check out current and previous communications about the project