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Caledonia Bridge

Caledonia Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: May 15, 2008 and August 12, 2012

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Key Facts

Facility Carried / Feature Intersected
Caledonia Northern Road (CR-194) Over Olentangy River
Location
Caledonia: Marion County, Ohio: United States
Construction Date and Builder / Engineer
1873 By Builder/Contractor: Wrought Iron Bridge Company of Canton, Ohio

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
Not Available
Structure Length
104 Feet (31.7 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s)
NBI Number
51XXXX1

Historic Significance Rating (HSR)

Bridge Documentation

This bridge is a rare bowstring truss bridge, that has been long bypassed and abandoned. It is a traditional example of the Wrought Iron Bridge Company design of bowstring, which as usual, includes a keystone column top chord. With a given 1873 construction date, it is a very old surviving example of this design. Despite its state of abandonment, this bridge could and should be restored. Relocated, it would make a great addition to a non-motorized pathway. Any restoration done on this bridge however should be carefully executed so as to not alter the original materials and design of the bridge. Failed rivets should be replaced with rivets, not high-strength bolts. Built-up beams with too much section loss and pack rust should be replicated as built-up beams. Bridges of this type are among the rarest type of metal truss bridge in the country. Each surviving example is significant and should not only receive high priority for preservation, but any preservation project carried out should be of the highest quality.

Information and Findings From Ohio's Historic Bridge Inventory

Setting/Context

The bridge is on an abandoned road off of CR 194 north of Caledonia. It is closed to traffic and overgrown, but the bridge is readily accessible.

Physical Description

The 1 span, bowstring thru truss bridge has tubular arch chords composed of Phoenix sections. The verticals are built up and the diagonals are rods with upturned ends. The bridge is supported on caissons. The bridge appears to be complete albeit deteriorated. Lateral and sway bracing is in place as are cruciform-shape outriggers.

Integrity

Appears to have integrity despite deterioration.

Summary of Significance

The Wrought Iron Bridge Co. bowstring truss was fabricated in 1873 and is a complete example of a rare patented bridge type/design by a prominent Ohio fabricator. It was NR listed in 1978.

Justification

The bridge is one of the 22 extant bowstring truss bridges that survive in the state. Having so many is remarkable, and even though they are "common" based on their numbers, each is an important and irreplaceable record of the development of the metal truss bridge and the ingenuity associated with the Ohio industrial development. The bridge has high significance.

Bridge Considered Historic By Survey: Yes

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