Building Bridges Since 1939
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Broadway Bridge Rall Wheel Replacement CM/GC

Project Info

Client Multnomah County

Project Description

Broadway Bridge Rall Wheel Replacement CM/GC

Portland, Oregon

Start Date: October 2016
End Date: Late Fall 2017


Hamilton is the Construction Management/General Contractor teamed with Multnomah County and Hardesty Hanover engineers to design, replace and repair elements of the draw bridge mechanism on this 103-year old structure. The most challenging part of the project will be the replacement of the massive 7,000 lb. rall wheel. This wheel enables the draw bridge to open up and roll back. In service since 1912, both the wheel and its track have become worn and pitted, creating concerns it could jam or come off the track. Safety and minimizing inconvenience to the public are top priorities on this project given its downtown location and heavy use by cars, pedestrians and bicyclists.