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.
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Broadway Over Willamette River and Various Streets and Railroad in Portland: Multnomah County, Oregon, United States
Metal 12 Panel Rivet-Connected Baltimore Through Truss, Movable: Double Leaf Bascule (Rall) and Approach Spans: Metal 11 Panel Rivet-Connected Pennsylvania Through Truss, Fixed
Length: 1,742 ft.
Main Span: 278 ft.
Roadway: 45.6 ft.
Main Spans: 1
Built 1913
By: Pennsylvania Steel Company of Steelton, Pennsylvania
and Ralph Modjeski
Railroad (Cincinnati Southern) Over Ohio River in Ludlow and Cincinnati: Kenton County, Kentucky and Hamilton County, Ohio, United States
Metal Continuous 14 Panel Multiple-Type-Connected Baltimore Through Truss, Fixed and Approach Spans: Metal 10 Panel Rivet-Connected Baltimore Through Truss, Movable: Vertical Lift
Length: 3,240 ft.
Main Span: 519 ft.
Roadway: 32.3 ft.
Main Spans: 3
Built 1922
By: American Bridge Company of New York, New York
and Ralph Modjeski
Railroad (BNSF) Over Columbia River in Portland and Vancouver: Multnomah County, Oregon and Clark County, Washington, United States
Metal Pin-Connected Modified Warren (Subdivided) Through Truss, Movable: Swing (Rim Bearing Center Pier) and Approach Spans: Metal 10 Panel Pin-Connected Pennsylvania Through Truss,
Length: 2,808 ft.
Main Span: 466 ft.
Roadway: 25 ft.
Main Spans: 1
Built 1908
By: American Bridge Company of New York, New York
and Ralph Modjeski
Fort Armstrong Avenue (2nd Street) and Railroad () Over Mississippi River and Various Streets and Railroads in Davenport and Rock Island: Scott County, Iowa and Rock Island County, Illinois, United States
Metal 16 Panel Pin-Connected Baltimore Through Truss, Movable: Swing (Rim Bearing Center Pier) and Approach Spans: Metal 12 Panel Pin-Connected Baltimore Through Truss, Fixed
Length: 1,848 ft.
Main Span: 366 ft.
Roadway: 25.3 ft.
Main Spans: 1
Built 1896
By: Phoenix Bridge Company of Phoenixville, Pennsylvania
and Ralph Modjeski
Railroad (Union Pacific) and Big River Crossing Over Mississippi River in Memphis: Shelby County, Tennessee and Crittenden County, Arkansas, United States
Metal Cantilever 26 Panel Multiple-Type-Connected Baltimore Through Truss, Fixed and Approach Spans: Metal 10 Panel Pin-Connected Inverted Bowstring Deck Truss, Fixed
Length: 4,973 ft.
Main Span: 790 ft.
Main Spans: 4
Built 1916
By: Pennsylvania Steel Company of Steelton, Pennsylvania
and Ralph Modjeski
Railroad (Keokuk Junction Railway) Over Mississippi River in Keokuk and Hamilton: Lee County, Iowa and Hancock County, Illinois, United States
Metal 13 Panel Multiple-Type-Connected Pratt Through Truss, Movable: Swing (Rim Bearing Center Pier) and Approach Spans: Metal 9 Panel Multiple-Type-Connected Pratt Through Truss, Fixed
Length: 3,800 ft.
Main Span: 380 ft.
Roadway: 18 ft.
Main Spans: 1
Built 1917
By: Strobel Steel Construction Company of Chicago, Illinois
and Ralph Modjeski
Railroad (Union Pacific) Over Atchafalaya River in Melville: St. Landry Parish, Louisiana and Pointe Coupee Parish, Louisiana, United States
Metal 6 Panel Rivet-Connected Warren Through Truss, Movable: Vertical Lift (Tower Drive) and Approach Spans: Metal 12 Panel Rivet-Connected Polygonal Warren Through Truss, Fixed
Length: 3,932 ft.
Main Span: 180 ft.
Main Spans: 1
Railroad (Canadian National) Over Ohio River and Various Streets in Metropolis: Massac County, Illinois and McCracken County, Kentucky, United States
Metal 20 Panel Multiple-Type-Connected Pennsylvania Through Truss, Fixed and Approach Spans: Metal 8 Panel Multiple-Type-Connected Pratt Deck Truss, Fixed
Length: 5,701 ft.
Main Span: 720 ft.
Roadway: 37 ft.
Main Spans: 5
Built 1917
By: American Bridge Company of New York, New York
and Ralph Modjeski
Railroad (BNSF) Over Columbia River (Oregon Slough) in Portland: Multnomah County, Oregon, United States
Metal Pin-Connected Modified Warren (Subdivided) Through Truss, Movable: Swing (Rim Bearing Center Pier) and Approach Spans: Metal 6 Panel Pin-Connected Pratt Through Truss,
Length: 1,535 ft.
Main Span: 335 ft.
Main Spans: 1
Built 1908
By: American Bridge Company of New York, New York
and Ralph Modjeski
