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Bath Road Bridge

Clark Road Bridge

Bath Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: December 26, 2009

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Key Facts

Facility Carried / Feature Intersected
Bath Road (Clark Road) Over Looking Glass River
Rural: Shiawassee County, Michigan: United States
Construction Date and Builder / Engineer
1925 By Builder/Contractor: Unknown and Engineer/Design: Michigan State Highway Department

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
37 Feet (11.2 Meters)
Structure Length
41 Feet (12.5 Meters)
Roadway Width
23 Feet (7.01 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

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

Learn about Michigan's Unique Concrete Camelback Bridges

This bridge is an example of Michigan's unique curved chord through girder bridges commonly called concrete camelback bridges, an unusual, beautiful, and significant structure type. Once common in Michigan, variations of this structure type are extremely rare or non-existent in other states. Even in Michigan the bridges are today rare, with less remaining examples of this bridge type than metal truss bridges in the state. Despite the rarity of the bridge type both statewide and nationally, many of these bridges were not found eligible for the National Register of Historic Places, although MDOT has shown interest in possibly changing this consultant-recommended finding. HistoricBridges.org has recommended that all surviving examples in Michigan should be found eligible for the National Register of Historic Places and highlighted for preservation.

The Bath Road Bridge (this road is named Clark Road in nearby Clinton County) is a 40 foot plan, and it features the typical design for this size. The 40 foot plan was the shortest form of the the curved chord through girder in Michigan. There are extremely few examples of this length because in most cases the straight chord through girder was used instead. The bridge retains excellent historic integrity with the exception of missing/stolen plaques. The bridge also has good structural integrity. It is the only curved chord through girder in Shiawassee County.


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