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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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SW Hamilton Street closed for sinkhole repair

Traffic Advisory

December 17, 2015

A 24-inch corrugated metal pipe under SW Hamilton Street between SW 39th and SW 40th avenues has failed and created a sinkhole in SW Hamilton. The street is closed at that location for up to six weeks while Environmental Services replaces the pipe.

Eastbound traffic on SW Hamilton is detoured around the closure at SW 45th Avenue and westbound Hamilton traffic is detoured at SW Dosch Road. The city’s contractor maintains local access on SW Hamilton.

Construction hours are 7:00 a.m. to 6:00 p.m. on weekdays and possibly Saturdays. SW Hamilton is closed to through traffic 24-hours a day, seven days a week until repairs are complete.

The failed pipe carries flow from a Fanno Creek tributary under SW Hamilton Street. Work crews are using pumps to pipe stream flow around the work area during repairs.

For more information contact Linc Mann, 503-823-5328.

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.