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Xenia Bridge

Carroll County Bridge 25

Xenia Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: February 19, 2017

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Key Facts

Facility Carried / Feature Intersected
Prince William Road Over Wildcat Creek
Location
Rural: Carroll County, Indiana: United States
Construction Date and Builder / Engineer
1931 By Builder/Contractor: E. R. Campbell of Sandborn, Indiana and Engineer/Design: Indiana State Highway Commission

Technical Facts

Rehabilitation Date
2006
Main Span Length
145 Feet (44.1 Meters)
Structure Length
155 Feet (47.2 Meters)
Roadway Width
21.7 Feet (6.61 Meters)
Spans
1 Main Span(s)
NBI Number
800021

Historic Significance Rating (HSR)
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Bridge Documentation

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

This riveted truss bridge was relocated here many decades ago.

Information and Findings From DHPA Historic Bridge Survey

Current Structure

In April 1931, E. R. Campbell of Sandborn, Indiana, bid $10,622.89 to build a Parker through-truss span seated on concrete abutments, all of state design, on US#24 over Hoagland Ditch in White County (#24-D-911). The ISHC used second-generation standard plan #422 for a number of these 150-foot, riveted, Parkers with 22-foot roadways. Truss depth varied from 21 feet and 6 inches at the portal to 29 feet and 6 inches at midspan. Each truss carried eight 18-foot and 9-inch panels. Both top and bottom chord members become heftier toward midspan. All top chord members were differently sloped; none was parallel with the lower chord. All were fabricated from a pair of 12-inch channels which increased in weight from 25-30 lbs. The lower chord members consisted of pairs of angles and battens. While all of the same size (6"x4"Ls) and riveted together with battens, the outermost two panels rely on a single pair of angles, while the others use two pairs. Each of the verticals was made of a pair of laced 8-inch channels (@11.5#, except for the hip ones @13.75#). To protect the quite-tall trusses against wind and vehicle-induced stress, substantial latticed struts and heavy upper sway framing buttressed the verticals above the 15 feet of roadway clearance. The portals relied on laced rather than latticed sections. The diagonals combined a pair of angles with battens into heavier members in the outer panels than toward center: in the second and third panels, 6x3.5-inch angles; in the fourth, 4x3-inch angles. The two most central panels carried a pair of 3x3-inch angles as counters. The state ordered 33-inch I floor-beams (@125#) riveted to the verticals above the lower chord. Eight rows of rolled I stringers (16"@35#) are attached to the floor-beams' sides. Together, the floor-beams and the stringers carry the concrete deck. A pair of angles supplies each lower sway-bracing member. Latticed guardrails line the trusses. When the ISHC replaced the Parker on U. S. #24 with a wider three-span concrete structure in 1968, the old steel span was dismantled, sold to Carroll County, and re-erected on Prince William Road just south of the old metal-truss Xenia Bridge. Except for being bolted together rather than riveted--a consequence of the move to Carroll County--the replacement span carries all the hallmarks of its ISHC paternity. The moved span sits on concrete abutments anchored by timber piles and carries a new concrete roadway. The Xenia Bridge is the only example extant of this second-generation ISHC standard plan and therefore has the oldest surviving 150-foot Parker through-trusses of state design. Moving altered the system of connection, and required a new substructure and deck. Still, the trusses appear to retain their original members along with their latticed guardrails.

Previous Structure

A structure earlier than the extant one probably carried Prince William Road over Wildcat Creek. The old concrete abutment which remains to the north demarks one end of a previous structure. In May 1898, S. H. Godman, then agent of the Wabash Bridge and Iron Company, received a contract from the county commissioners for new steel joists or stringers for a bridge here. This arrangement suggests the presence of an older iron-truss structure with timber stringers. It was probably this bridge which the county replaced in 1968 with a second-hand state highway span from White County.

Other Information

References Indiana State Highway Commission, Structure, #24-D-911; Contract, #402; Superstructure Standard, #422. Charles J. Ritzler, Bridge Inspection Report: Carroll County (Delphi, 1974-75). AECON, Inc. , Bridge Reinspection Study & Report: Carroll County (Nashville, 1987). Rumschlag Technical Services, Carroll County Bridge Inventory & Appraisal Report (Brownsburg, 2006). Carroll County, "Commissioners Record," 19: 555.

Bridge Considered Historic By Survey: Yes

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Photo Galleries and Videos: Xenia Bridge

 
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