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Florence Bridge

Florence Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: March 20, 2016

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Key Facts

Facility Carried / Feature Intersected
IL-100 and IL-106 (Old US-36) Over Illinois River
Location
Florence: Pike County, Illinois and Scott County, Illinois: United States
Structure Type
Metal 10 Panel Rivet-Connected Parker Through Truss, Movable: Vertical Lift and Approach Spans: Metal 10 Panel Rivet-Connected Parker Through Truss, Fixed
Construction Date and Builder / Engineer
1929 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
2004
Main Span Length
215 Feet (66 Meters)
Structure Length
3,177 Feet (968 Meters)
Roadway Width
23 Feet (7.01 Meters)
Spans
1 Main Span(s) and 37 Approach Span(s)
NBI Number
860001

Historic Significance Rating (HSR)

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This vertical lift bridge is also noted for its long, impressive series of fixed through truss spans.

All spans, both the lift span and the fixed approach spans (which match the design of the lift span except there are no towers), are 215 feet from center to center of bearing. The span length from center to center of piers is 217 feet. The eight fixed truss spans and the single lift span total 1,953 feet in overall length. The remaining length of the bridge is composed of 29 steel stringer approach spans at the eastern end of the bridge only, producing a total bridge length of 3,178 feet. The bridge was rehabilitated in 1981 and 2004. The 2004 project involved deck replacement.

Above: 1930 photo of machinery room. Photo Credit: Art Kistler, IDOT

Above: The counterweight sheaves were removed from the bridge following a mechanical problem that developed in 2012 and are shown in storage here. Note person for scale. Photo Credit: IDOT.

Above: 1930 photo of bridge showing original railing on approach spans. Photo Credit: Art Kistler, IDOT

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Photo Galleries and Videos: Florence Bridge

 
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Maps and Links: Florence Bridge

Coordinates (Latitude, Longitude):
39.632650,-90.607710

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