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Ross Island Bridge
Primary Photographer(s): Nathan Holth
Bridge Documented: September 3, 2018
Portland: Multnomah County, Oregon: United States
Main Span Length
535.0 Feet (163.1 Meters)
3,653.0 Feet (1113.4 Meters)
43 Feet (13.11 Meters)
3 Main Span(s)
and 31 Approach Span(s)
View Information About HSR Ratings
This unique bridge has the appearance of an arch bridge. However in design it
functions as a cantilever truss bridge, with no suspended span. This is an
unusual design, but also a very attractive one. The bridge is one of several
bridges in Portland designed by famous engineer Gustav Lindenthal. This one is
one of the most significant and unique examples of his work in the city. The
bridge retains good historic integrity with no major alterations to the main
truss spans. The length of all truss spans, main and approach spans combined is
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Maps and Links: Ross Island Bridge
Coordinates (Latitude, Longitude):
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2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.
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