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Historic Bridges: Boundary County, Idaho

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

Total Bridges Found: 2

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Moyie Bridge
Moyie River Canyon Bridge
HSRNational HSR. Local HSR.
Click to visit page.
US-2 Over Moyie River in Moyie Springs: Boundary County, Idaho, United States
Metal Continuous Bolt-Connected Warren Deck Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 1,222 ft. Main Span: 378 ft. Roadway: 28 ft. Main Spans: 3
Built 1965 By: Northern Imperial Construction Company of Portland, Oregon
With its welded beams, this extremely high bridge looks about 10 years newer than it is.
Naples Bridge
Naples Viaduct
HSRNational HSR. Local HSR.
Click to visit page.
Old US-95 (Deep Creek Loop) Over Railroad (BNSF and Union Pacific) and Deep Creek in Naples: Boundary County, Idaho, United States
Metal 8 Panel Rivet-Connected Parker Through Truss, Fixed and Approach Spans: Concrete Curved T-Beam, Fixed
Length: 502 ft. Main Span: 161 ft. Roadway: 24 ft. Main Spans: 1
Built 1936 By: Unknown
This bridge is on old US highway alignment and has an interesting combination of concrete approach spans and a metal truss span.

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