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69th Avenue Bridge at Rock Creek

This project is complete.

The 69th Avenue bridge has been replaced with a wider concrete structure with two travel lanes, bicycle, and pedestrian facilities for increased safety. The new bridge was designed to protect fish passage and preserve the waterway. Bridge construction requires a road closure during construction.

The previous NE 69th Avenue (formerly 227th Avenue) bridge over Rock Creek was a decaying six-span timber structure built in the 1960s. The bridge was decaying and restricted to one lane of traffic and weight limited to 13 tons as of September 2016. 

This $3.5 million bridge replacement project is funded through the Washington County Road Fund and is in partnership with the city of Hillsboro.

Construction start (expected): 1/3/22
Construction finish (expected): 2/11/22


69th Avenue has been paved and striped. The road is expected to reopen on June 26, after guard rails and pedestrian safety rails have been completed.


Cost: $3.5 million (estimate)

Funding sources:

Prior events and comment opportunities:

Open House - Oct. 18, 2017

Open House - Aug. 14


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