Utilizing innovative technology to complete the impossible
The 91-year-old Sellwood Bridge in Portland, Oregon, was experiencing the effects of aging. When Multnomah County—the governing force for the greater Portland area—decided to replace the bridge rather than restore it, our team of experts stepped in to offer the latest in modern bridge solutions.
The problem was managing traffic. Crossing over the Willamette River, the bridge provides the community of Sellwood with access to Portland and Route 43. This meant we had to establish a detour for passing vehicles. Our solution? We placed the existing steel bridge on temporary pillars and shifted it slightly north. This approach allowed the new bridge to be constructed in the existing alignment while the existing bridge was repurposed—and recycled—which reduced costs and shortened the project schedule.
At 2,000 feet in length, the new $324-million bridge will effectively serve the greater Portland area with safe and convenient roadway access across the Willamette River. Not to mention, the Sellwood Bridge Replacement won the Project of the Year Award from DJC Oregon in 2017.
At a Glance
- Safdie Rabines Architects
- CH2M, TY Linn International Group
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