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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Columbus Drive Over Chicago River in Chicago: Cook County, Illinois, United States
Metal Non-Historic, Movable: Double Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 389 ft.
Main Span: 269 ft.
Roadway: 90 ft.
Main Spans: 1
Built 1982
By: Paschen Contractors of Chicago, Illinois and American Bridge Company of New York, New York
and City of Chicago and Envirodyne Engineers Inc.
Columbus Drive Over Hillsborough River in Tampa: Hillsborough County, Florida, United States
Metal 9 Panel Rivet-Connected Pratt Pony Truss, Movable: Swing (Rim Bearing Bobtail) and Approach Spans: Concrete T-Beam, Fixed
Length: 470 ft.
Main Span: 163 ft.
Roadway: 40 ft.
Main Spans: 1
Built 1926
By: Roberts Supply Company of Lima, Ohio and Mount Vernon Bridge Company of Mount Vernon, Ohio
and Norman S. Sprague of Pittsburgh, Pennsylvania
