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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11th Street Over Ohio River, PA-51, and Railroad in Ambridge and Aliquippa: Beaver County, Pennsylvania, United States
Metal Cantilever 22 Panel Multiple-Type-Connected Baltimore Through Truss, Fixed and Approach Spans: Metal 8 Panel Rivet-Connected Warren Pony Truss, Fixed
Length: 1,995 ft.
Main Span: 530 ft.
Roadway: 27 ft.
Main Spans: 5
Built 1927
By: American Bridge Company of New York, New York
and T. J. Wilkerson of Beaver Falls, Pennsylvania
11th Street Over City Waterway (Thea Foss Waterway) in Tacoma: Pierce County, Washington, United States
Metal 8 Panel Rivet-Connected Pratt Through Truss, Movable: Vertical Lift (Span Drive) and Approach Spans: Metal 7 Panel Rivet-Connected Pratt Through Truss, Fixed
Length: 1,748 ft.
Main Span: 34 ft.
Roadway: 34 ft.
Main Spans: 1
Built 1911
By: American Bridge Company of New York, New York
and Waddell and Harrington of Kansas City, Missouri
