Monon: (Bridge Hunter; Historic Bridges; 3D Satellite)
Davis Ferry
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| Bob Kalal photo via Bridge Hunter comment |
Monon
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| Photo via search result via SHAARD search The Pennsylvania Steel Company of Steelton, Pennsylvania, built at least the plate girders of this six-span structure. The two all-riveted Warren through spans at center are flanked by a pair of plate girder approaches at each end, the whole of which rests upon cut-stone abutments and piers to the east and a concrete substructure to the west. Each Warren truss uses I beam verticals to demark its six panels. Collision struts of two pairs of laced angles brace the endposts. The diagonals are fabricated from a pair of channels and battens, the channels used being much heavier toward midspan. Attached at the lower chord, heavy girder floor beams carry two sets of timber ties to which the rails of the two tracks are spiked. [StructuralTab] |
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| Photo via StructuralTab
Statement of Significance:
The masonry foundation for the substructure suggests a 19th century crossing. The present trusses are the only double intersection Warren throughs known to exist on Indiana's rail system. The spans are heavy, unadorned, and appear to retain their original members, except for the 1924 replacement of the most northerly through span. [Historic Bridges comments: "This railroad truss bridge is noted for its uncommon double-Warren truss configuration."]
Architectural Description:
Seated upon a concrete-over-stone substructure, this six-span bridge consists of two deck plate girder spans at each approach and two double-intersection Warrens across the main waterway. The structure carries a single track upon the usual timber tie deck.
Each through span is riveted and subdivided into eight panels. Crafted I beams provide the only vertical--from the top chord-endpost connection to the initial floor beam. Diagonals of crafted I beams cross the two most central panels, (and are riveted to plates at the intersecting points), extends outward from the 2nd, 3rd, 6th, and 7th top panel points, and provide an extra diagonal from the lower region of the endpost to the first floor beam. Pairs of angles riveted together stretch inward from the 1st, 2nd, 7th, and 8th top panel points to complete the pattern of diagonals. Both floor beams and stringers are made of girders riveted to the trusses above the lower chord.
A wreck in April 1924 caused the northernmost through span to collapse, and thus three double-intersection Warrens were reduced to the present two and a pair of shorter plate girders replaced the demolished span.
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| monon,org The Wabash River bridge, spring 2003. After record rainfalls the river is coming close to the tracks. -Courtesy Gene Cassman- [This monon.org page has a couple more photos taken with a high river level. One of them shows a dog on the track. It also has three photos of the train 1924 train wreck on the bridge.] |
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