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Hal W. Adams Bridge

Hal W. Adams Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: November 16, 2014

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Key Facts

Facility Carried / Feature Intersected
FL-51 (Irvin Avenue) Over Suwannee River
Location
Rural: Lafayette County, Florida and Suwannee County, Florida: United States
Structure Type
Metal Pony Truss Stiffening Wire Cable Suspension, Fixed and Approach Spans: Concrete T-Beam, Fixed
Construction Date and Builder / Engineer
1947 By Builder/Contractor: L.J. and W.J. Cobb Construction Company of Tampa, Florida

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
420 Feet (128.02 Meters)
Structure Length
687 Feet (209.4 Meters)
Roadway Width
26 Feet (7.92 Meters)
Spans
1 Main Span(s) and 8 Approach Span(s)
NBI Number
330009

Historic Significance Rating (HSR)

Bridge Documentation

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

View Historic Bridge Inventory Sheet For This Bridge

This bridge is the only suspension bridge in Florida, and for that reason it is significant on a state level. The bridge is an icon for the area, and a visually pleasing crossing of the river. As suspension bridges go, usually being reserved for the longest of spans, this is a rare small-scale suspension bridge with a span of only 420 feet. The bridge has riveted steel towers and riveted Warren pony truss stiffening. Uncommon details include the main cable which is composed of eight separate and bare wire cables, rather than a single cable unit with wrapping as is more common. The suspenders are, depending on the panel point, either rod for longer suspenders and bar for shorter suspenders. The anchorages are of simple design with concrete holding eyebars in place which attach to the main cable. The eyebars are not enclosed as in many suspension bridges, and as such the bridge is an uncommon opportunity for visitors to actually see the anchorage's eyebars. The bridge features a series of concrete t-beam approach spans at the northern end only.

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