This is the most unusual of a unique group of six historic truss bridges found along this road. The trusses no longer function as anything olther than decorations, with load bearing beams added. However the shallow trusses with vertical endposts are extremely unusual. The bridge is noted as a bedstead bridge with its legs encased in concrete. The bedstead design only makes this bridge more unusual. The lack of vertical members in this Warren truss is also unusual.
One of the endposts of the bridge has been badly damaged by a vehicle impact. Further, this bridge was apparantly hit again a few weeks after these photos were taken, and the bridge is now closed to all traffic.
The truss is mostly fastened with rivets, but some connections display bolts as well.
Construction date is an estimate.
Information and Findings From DHPA Historic Bridge Survey
Bridge History and Significance
The truss legs of this 40', single-span Warren bedstead pony are seated behind concrete abutments and wingwalls and once successfully dispersed the tension and compression of the crossing. Now a pair of 24" I beams set on the abutments above the truss bear all the stresses. The largely-bolted bedstead consists of six panels and has no verticals. The top chord was fabricated from single angles laced together and the diagonals and lower chord members of single angles riveted together with stay plates. Bolted to gussets, the I floor-beams once carried the timber deck with its 12'8" roadway. While erected with some frequency in Martin County, Warren truss legs are far less common and a later development than the Pratts. This one was unusually designed, especially with the omission of verticals and the lighter-than-usual top chord. Although no longer functioning as a truss, the bedstead retains its original members.
References American Consulting Engineers, Inc., Bridge Inspection/Reinspection Report: Martin County (Indianapolis, 1974, 1979).
Bridge Considered Historic By Survey: Yes
Coordinates (Latitude, Longitude):
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