Oregon Slough Railroad Bridge, Railway bridge in Portland, United States.
The Oregon Slough Railroad Bridge extends 1,524 feet across North Portland Harbor with a swing-span design and two railroad tracks for transportation.
Railroad engineer Ralph Modjeski designed this bridge in 1908 as part of the Northern Pacific Railway expansion to establish connections between Portland and Seattle.
The bridge represents early 20th-century industrial development in Portland, demonstrating the influence of rail transportation on regional growth and commerce.
The bridge serves freight trains from BNSF and Union Pacific Railroads, plus Amtrak passenger trains traveling between Portland, Seattle, and Chicago.
This structure remains one of only two operating swing bridges in Portland, with its span opening approximately twelve times monthly for river traffic.
Location: Portland
Official opening: 1908
GPS coordinates: 45.61430,-122.70200
Latest update: March 3, 2025 15:33
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