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O'Neal Bridge

Boone County Bridge 207

O'Neal Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: February 19, 2017

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Facility Carried / Feature Intersected
Holliday Drive Over Big Eagle Creek
Location
Rural: Boone County, Indiana: United States
Construction Date and Builder / Engineer
1892 By Builder/Contractor: Lafayette Bridge Company of Lafayette, Indiana
Rehabilitation Date
2009
Main Span Length
112.5 Feet (34.3 Meters)
Structure Length
114.0 Feet (34.7 Meters)
Roadway Width
15.7 Feet (4.79 Meters)
Spans
1 Main Span(s)
Inventory Number
600140

Historic Significance Rating (HSR)
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Bridge Documentation

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

This classic Pratt truss bridge has an unusual portal and strut design giving it a unique appearance.

Information and Findings From DHPA Historic Bridge Survey

Statement of Significance

The Newcastle Bridge Company billed the county $685 in December 1904 for work on a bridge in S26/T18N/R2E, which could be either #207 or #187. Seated upon caissons and a metal plate behind driven I-beam substructure on the west and replacement concrete abutments and wing-walls on the east, this single-span, pin-connected Pratt through structure carries latticed portal struts and fan-shaped portal bracing. A pair of latticed channels provides the intermediate verticals, and a pair of die-forged eye-bars serve as the diagonals in all except the center panel. A pair of adjustable and cylindrical rods supply the diagonals and counters for the center panel. Single adjustable rods counter the diagonals in the third and fifth panels. The I floor-beams are U-bolted to the lower pins. They support runs of I-beam stringers with a timber deck above. The trusses are lined with latticed guardrails and allow for 16 feet and 8 inches of vertical clearance. The superstructure is rather conventionally designed. The remaining, original metal substructure is noteworthy.

Other Information

References Beam, Longest, & Neff, Inc., Bridge Inventory Rating and Safety Inspection: Boone County (Indianapolis, 1977, 1981). Bernardin, Lochmueller & Associates, Bridge Inspection Report: Boone County (Evansville, 2003). Indiana Historic Sites & Structures Inventory, Boone County: Interim Report (Indianapolis, 1982), 50-51. Boone County, "Claim Docket," 7: 264.

Bridge Considered Historic By Survey: Yes

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Photo Galleries and Videos: O'Neal Bridge

 

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Maps and Links: O'Neal Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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