Environmental Services continues construction on the Woodlawn-King Alleys Sewer Repair Project to repair or replace over 15,000 feet (almost 3 miles) of sewer pipes that are on average 90 years old and in deteriorating condition. This work will include repairing or adding over 2,400 feet of service laterals that connect houses and businesses from the curb to the public sewer in the street/alley. Taking these actions now will help protect the public and our environment by reducing the possibility of costly breaks, leaks, blockages, and sewage releases to homes, businesses, and streets.
The map indicates locations where work will occur, and the construction method that will be employed. You can learn more about construction methods HERE.
Construction began in April 2017 and is expected to continue until spring 2018. Visit the project homepage at www.portlandoregon.gov/bes/wokialleys for current work locations and developments of note.
Please be aware that schedules are subject to change due to a variety of factors, including conditions underground, weather, traffic impacts and subcontractor and materials availability.
Work will progress in the following way:
- The city contractor bringing materials and machinery to the work zone and storing them in a centralized staging area in the right-of-way.
- Tree trimming will be performed as needed to make room for large equipment, reduce the possibility of damage to trees, and help ensure public safety.
- Video inspection crews will flush sewer with water to clear debris and then insert a video camera to document pipe an branch connection conditions.
- Perform spot repairs to or replacement of the main line sewer pipe. This involves excavating small trench sections to access the pipe.
- Replace lateral connections between the main line sewer pipe and individual properties.
- Install cleanouts with a vactor truck to clear a small diameter hole that allow crews to cut into the service lateral, connect a standing pipe to the surface, and add a cap at ground level. Cleanouts provide access for maintenance and repair of lateral connections.
- Videotaping of sewer line for final inspection and approval.
- Final restoration of work zone.
Construction will move from one site to another as work phases are completed, with periods of inactivity between phases ranging from a few days to a few weeks.
Environmental Services has been granted a noise variance to allow open trench work and cured-in-place pipe lining at locations indicated on the maps below. A variance is required when work occurs outside normal construction hours, 7:00 a.m. to 6:00 p.m. Monday through Saturday. This includes work after 6:00 p.m. and before 7:00 a.m., and all hours on Sunday.
Work will take place for up to six weeks on NE Alberta Street near N Vancouver Avenue, and one week on NE Rosa Parks Way between NE Garfield Avenue and NE MLK Boulevard.