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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

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Woodlawn-King Sewer Repair Project


Environmental Services is designing three large-scale sewer projects in North and Northeast Portland neighborhoods to replace or repair approximately 56,000 feet of public sewer pipes that are on average 90 years old and failing due to age. This is the equivalent of over 10 miles of sewer pipes. The three adjacent project areas will include construction in Piedmont, Humboldt, Woodlawn and King neighborhoods plus a few blocks in Overlook.

In the Woodlawn and King neighborhoods, the work will include repairing about 29,000 feet of sewer pipes. The sewer repairs will enhance livability by improving sewer and stormwater infrastructure, increasing sewer capacity, and reducing the risks of street flooding and sewage releases to homes, businesses and streets. Construction in Woodlawn-King will begin in spring 2016. 

Proposed Pipe Work Locations

The map below shows the proposed pipe replacement and repair locations. It is too early in the design process to know what construction methods will be used where.

Woodlawn-King project area map           

Locating and Marking Underground Utilities

All sewer design and construction projects depend on advance surveys of construction areas. Crews have been in the neighborhood to locate and mark underground utilities by painting stripes on streets and sidewalks or placing colored flags in landscaped areas. Each color indicates what is buried below. The color code is as follows:

  • White = proposed excavation
  • Pink = temporary survey markings
  • Red = electric power lines, cables, conduit and lighting cables
  • Yellow = gas, oil, steam, petroleum or gaseous materials
  • Blue = potable water
  • Purple = reclaimed water, irrigation and slurry lines
  • Green = sewer and drain lines

Trucks have also been in Woodlawn-King and adjacent neighborhoods using video equipment to inspect the interior of public sewer pipes. This involved lowering equipment into a manhole and directing a robotic camera through the sewer pipe. Engineers are using this information to determine if pipes need to be replaced or repaired.

For More Information

Contact Rhetta Drennan at 503-823-6006. Before and during construction, we will be sending regular email updates to keep you posted about the schedule, construction activities, possible traffic detours and delays, parking restrictions and other impacts. We encourage you to sign up now to be added to the project's email update list. Send an email to Rhetta Drennan with “Woodlawn-King” in the subject line to receive project updates by email.

Please let us know if you have concerns such as business operations, disability issues or medical or business deliveries.