Greenroads Certified Silver

Sellwood Bridge Replacement: Sellwood Bridge



Engineers Estimate: $330 million

Length: 0.74 lane-miles

Funders/Stakeholders: Multnomah County, City of Portland, State of Oregon, Tiger Grant

Owner: Multnomah County

Design: T.Y. Lin, CH2M Hill, David Evans Associates

Contractor: Slayden Sundt Joint Venture

Functional Class: Arterial

Greenroads Version: 1.5


The Sellwood Bridge provides a critical crossing of the Willamette River at the Sellwood-Moreland neighborhood of Portland, Oregon. The new Sellwood Bridge replaces a structure built in 1925. The original bridge was structurally deficient, leaving it vulnerable to a large earthquake and prohibiting use by buses and trucks. The finished structure is a steel deck arch, with two-travel lanes, bike lanes, and widened shared use sidewalks.

Check out the full construction time lapse video

Read the press release


The new Sellwood Bridge allows a wide range of transportation modes to safely cross the Willamette River while capitalizing on the scenic and cultural characteristics of the region. The consultants and construction teams also made responsible choices in the design of the bridge section and material sourcing. Sustainable features include:

  • 12-foot sidewalks and 6.5-foot bike lanes on each side of the bridge
  • Provides new routes for transit as buses were prohibited on existing bridge
  • Dark-sky friendly luminaires with energy-efficient LEDs
  • Lookout points including benches and educational signage
  • 94% of materials by cost sourced within 50 miles 

Sellwood Bridge - From Trail

Sellwood Bridge - Sidewalks and Bicycle Lanes

Sellwood Bridge - Lookouts and Signage

Sellwood Bridge - Main Span

Sellwood Bridge - Lighting