S-42 (IRON BRIDGE ROAD) Bridge
Bridge No: 3370004200100
Asset ID: 440
County: McCormick
Bridge Name:
Facility Carried: S-33-42
Feature Intersected: Cuffeytown Creek
Year Built: 1909
Year Reconstructed:
Main Structure Type: Thru Truss
Design: Pratt (pinned)
Main Material: Steel
Railing Type: 2 rail high metal channel railings
Number of Main Spans: 1
Number of Approach Spans:
Approach Type:
Structure Length: 141 feet
Structure Width: 12.2 feet
Setting: The bridge carries a 1 lane unimproved road over a stream in a wooded rural setting.
Bridge Description
The 1 span, 141'-long pin-connected Pratt thru truss has eye bar tensions members and built-up compression members of standard sections, A-frame portals, 2 rail high metal angle railings inside the truss lines, wood plank deck, and concrete abutments.
Significance
The 1909 pin-connected thru truss bridge was fabricated by Austin Bros. of Atlanta, according to a bridge plaque that was present during the 1981 truss inventory.The bridge still ranks as one of the oldest surviving examples of its type in the state, and one of the very few pin-connected trusses still on-system.The bridge was found eligible as a result of the 1981 survey.There do not appear to have been any significant alterations to the bridge since 1981, although the condition of the bridge deserves some attention - all members are listed as heavily/moderately rusted, the bearings are full of rust and debris, and some pin nuts are reported as backing off the threads.