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Portland Bureau of Transportation

Phone: 503-823-5185

Fax: 503-823-7576

1120 SW Fifth Ave, Suite 800, Portland, OR 97204

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Traffic Advisory: Street improvements to close N Interstate Avenue to all traffic from N Larrabee Avenue to N Tillamook Street, Sept 26-Oct 5

(Sept 23, 2016)  – The City of Portland Bureau of Transportation advises the traveling public that street improvements will require a full road closure for people driving and biking on N Interstate Avenue from N Larrabee Avenue to N Tillamook Street, on Monday, September 26, through Wednesday, October 5, 7 a.m. through 4 p.m. each work day. Work is expected only on weekdays and the road will be open on the weekend.

The road closure will allow crews to grind and pave 1.77 lane miles of pavement.

Streets with ground down surfaces are open for travel. The road closure will only be in effect during project hours. Access will be maintained for businesses and residents during the project. Northbound traffic will be detoured onto N Larrabee Avenue and southbound traffic will be detoured onto the ramp that reconnects with Interstate at N Thunderbird Way via N Larrabee Avenue.

This area is a popular route for people traveling by bicycle and public transit. During work hours, expect to see signs indicating detours for all travelers. Consider using alternate routes.

For information on possible impacts to TriMet service, check

The traveling public is advised to expect delays while repairs are being made. We ask the public to travel cautiously, observe all lane closures and directions by reader boards and flaggers, and use alternate routes if possible.

This work is weather-dependent and the schedule may change.