Location: Broadway Bridge lift spans
Schedule: Field work Early 2023 through Fall 2023
Estimated Cost: $9.3m
Funding Source: County funds for design; anticipated 90% federal and 10% county for construction
The Broadway’s lift span deck is currently made of fiber-reinforced polymer (FRP) structural members. The existing FRP decking on the movable spans is retaining water and the structural beams have begun to fail, resulting in the need for extensive temporary repairs by County maintenance. The deck and supporting beams will be replaced with concrete-filled steel. This is the same type of deck that can currently be seen on the Morrison Bridge.
We will also replace the sidewalks on the lift span, existing gears, motor brakes, machinery supports and flooring, and the machinery brakes that help control the movable spans. Just like a car, all our movable bridges need brakes to control the speed at which the bridge closes. We will also be upgrading the electrical system to handle the new machinery.
During construction, the streetcar tracks will be removed and put back in place. There will be no change in streetcar operations once the project is complete.
The design phase began in January 2021 and will last about a year. In this phase, we’ll plan how to minimize our impacts on the streetcar and other traffic.
We have applied for federal funding for the construction phase and anticipate notification in 2021.
If the project receives funding, the construction contract will be advertised in 2022. Field work is scheduled to begin in early 2023 and end in Fall 2023.
The bridge will be closed to all traffic at times during the project and two lanes will be closed at most times during the work. Portland Streetcar will not be able to use the bridge for extended periods during construction. More information will be available after the design phase is complete.
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