The St. Johns Bridge, a celebrated Portland Historical Landmark since its construction in 1931, stands as a vital artery for both local and regional transportation. This majestic structure not only facilitates the movement of diverse travelers but also serves as a popular route for cyclists and public transit, and is a designated freight corridor. Following recent maintenance to its steel frame completed in 2019, a new project is underway to ensure the bridge’s longevity for future generations.
This essential preservation work focuses on the concrete elements of the St. Johns Bridge, specifically the pier columns and arches that support this iconic structure. Located on U.S. 30BY, the bridge gracefully spans the Willamette River, linking Northwest and North Portland. The project encompasses work on the bridge’s columns on both riverbanks, U.S. 30 Bypass (NW Bridge Avenue), and the frontage roads of N Philadelphia Avenue. Notably, Cathedral Park, a beloved green space, is nestled beneath the bridge on the east side, offering unique perspectives of this engineering marvel.
Funded with a budget of $26.7 million, this critical infrastructure project is being carried out by Wildish Standard Paving Co. The investment underscores the commitment to enhancing the long-term safety and extending the lifespan of the St. Johns Bridge. By meticulously repairing the concrete on the pier columns and arches beneath the bridge deck, the project aims to safeguard the bridge’s internal steel frame and reinforcements from corrosion. This proactive approach is crucial in maintaining the structural integrity and service life of this cherished Portland Historic Landmark.
The necessity for this concrete repair project arises from the natural aging process of the bridge. After nine decades of service since its original construction, the concrete has begun to deteriorate, with chipping and degradation exposing the internal steel framework within the pier columns. This is the first comprehensive concrete repair undertaken on the St. Johns Bridge since its inception in 1931, highlighting the significance of this undertaking to address the wear and tear of time.
For individuals seeking further details about this project or requiring ADA accommodations, translation services, or additional information, please contact 503-731-4128. The Oregon Department of Transportation is committed to ensuring accessibility and clear communication for all members of the public regarding this important preservation work on the St. Johns Bridge.
