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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

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Sewer construction to close SW Terwilliger Blvd south of Castleridge starting Monday, December 5

Traffic Advisory

SW Terwilliger Blvd detour mapDecember 2, 2016 (updated from November 28, 2016) 

Sewer construction to close SW Terwilliger Boulevard south of SW Castleridge Lane starting Monday, December 5

Sewer construction will close SW Terwilliger Boulevard between Highway 43 and SW Castleridge Lane beginning at 7 a.m. on Monday, December 5. This segment of SW Terwilliger will be closed 24 hours a day, seven days a week, for up to eight months.

A signed detour will direct traffic to use SW Taylors Ferry Road and Highway 43 around the construction area. The traveling public is advised to expect delays, follow directions from flaggers, and observe the detour or use an alternate route, sticking to major arterials and avoiding neighborhood streets if possible.

Go to for maps and more information about the project.

This work is part of the SW Terwilliger Boulevard Sewer Project, which will construct about 7,600 feet of public sewer pipe and provide connections to private properties currently not served by the public sewer system. The project will help protect water quality, public health, and the environment.

For more information contact Cheryl Kuck, 503-823-7898,

The Bureau of Environmental Services works with Portland residents and businesses to protect water quality, public health, and the environment through wastewater collection and treatment, sewer construction and maintenance, stormwater management, and stream and watershed restoration.