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Historic Bridges: Clatsop County, Oregon

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: 9

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Oregon Coast Highway (US-101) Over Columbia River in Astoria: Clatsop County, Oregon and Pacific County, Washington, United States
Metal Continuous 28 Panel Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal 12 Panel Rivet-Connected Polygonal Warren Through Truss, Fixed
Length: 21677 ft. Main Span: 1232 ft. Roadway: 28 ft. Main Spans: 3
Built 1966 By: American Bridge Company of New York, New York and DeLong Corporation and George Stevens, William A. Bugee, and Ivan D. Merchant
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Railroad (Portland and Western Railroad) Over Blind Slough in Rural: Clatsop County, Oregon, United States
Metal Multiple-Type-Connected Pratt Through Truss, Movable: Swing (Center Pier) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 700 ft. Main Span: 180 ft. Roadway: 12.3 ft. Main Spans: 1
Built 1895 By: Unknown
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Broadway Street Over Necanicum River in Seaside: Clatsop County, Oregon, United States
Concrete Closed Spandrel Deck Arch, Fixed
Length: 152 ft. Main Span: 43 ft. Roadway: 30 ft. Main Spans: 3
Built 1924 By: W. A. Webster and J. H. Tillman and G. R. Edwards and Daniel Luten
Clatskanie River Railroad Bridge
Clatskanie Railroad Bridge
HSRNational HSR. Local HSR.
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Railroad (Portland and Western Railroad) Over Clatskanie River in Clatskanie: Clatsop County, Oregon, United States
Metal Multiple-Type-Connected Pratt Through Truss, Movable: Swing (Center Pier) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 223 ft. Main Span: 182 ft. Roadway: 12.3 ft. Main Spans: 1
Built 1897 By: Unknown
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Business US-101 (Warrenton-Astoria Highway) Over Lewis and Clark River in Astoria: Clatsop County, Oregon, United States
Metal 7 Panel Rivet-Connected Pratt Deck Truss, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 870 ft. Main Span: 112 ft. Roadway: 19 ft. Main Spans: 1
Built 1924 By: Unknown and Conde Balcom McCullough (Oregon State Highway Commission)
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Oregon Coast Highway (US-101) Over Neawanna Creek in Seaside: Clatsop County, Oregon, United States
Concrete Continuous Curved T-Beam, Fixed
Length: 210 ft. Main Span: 52.5 ft. Roadway: 27 ft. Main Spans: 4
Built 1930 By: F. L. Odom and Conde Balcom McCullough (Oregon State Highway Commission)
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Oregon Coast Highway (US-101) Over Necanicum River in Rural: Clatsop County, Oregon, United States
Concrete Curved T-Beam, Fixed
Length: 172 ft. Main Span: 68 ft. Roadway: 27 ft. Main Spans: 3
Built 1930 By: F. L. Odom and Conde Balcom McCullough (Oregon State Highway Commission)
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Oregon Coast Highway (US-101) Over Youngs Bay in Astoria: Clatsop County, Oregon, United States
Metal 10 Panel Bolt-Connected Warren Pony Truss, Movable: Vertical Lift (Tower Drive) and Approach Spans: Metal 10 Panel Bolt-Connected Warren Pony Truss, Fixed
Length: 4208.5 ft. Main Span: 153.6 ft. Roadway: 30 ft. Main Spans: 1
Built 1964 By: Unknown and Ivan D. Merchant (Oregon State Highway Commission)
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Business US-101 (Warrenton-Astoria Highway) Over Youngs Bay in Astoria: Clatsop County, Oregon, United States
Metal Rivet-Connected Pratt Deck Truss, Movable: Double Leaf Bascule (Fixed Trunnion) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 1845.2 ft. Main Span: 166.3 ft. Roadway: 20.3 ft. Main Spans: 1
Built 1921 By: Gilpin Construction Company of Portland, Oregon and Conde Balcom McCullough (Oregon State Highway Commission)

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