|Bridge Name||Facility Carried / Feature Intersected||Location||Structure Type||Construction Date and Builder/Engineer|
Buckingham Road Bridge
||Buckingham Road (TR-181) Over Marsh Run||Rural: Huron County, Ohio||Metal 4 Panel Rivet-Connected Warren Pony Truss, Fixed||1922 By Builder/Contractor: Unknown|
|Rehabilitation Date||Main Span Length||Structure Length||Roadway Width||Main Spans||NBI Number|
|1991||54 Feet (16.5 Meters)||60 Feet (18.3 Meters)||17 Feet (5.2 Meters)||1||3946479|
This bridge is a traditional riveted Warren pony truss with fair historic integrity. A vertical member has been replaced with a welded replacement. Modern Armco guardrails were bolted onto the bridge sometime between 2007 and 2009, although original lattice railings remain behind the Armco guardrail. The Armco guardrail is improperly mounted on the bridge. A frequent problem encountered with historic bridges is lazy government agency bridge owners who bolt Armco guardrail directly to the fracture critical members of a truss bridge. When a vehicle collides with a bridge with guardrails mounted in this way, the impact damage is transferred directly to the truss members, which may result in member damage or member failure which leads to bridge closure, or in a worst case scenario bridge collapse. The needs of public safety and historic bridge preservation are equally being short-changed by this improper guardrail mounting.
There are one of two scenarios at this bridge. Either traffic volumes and speeds are low, and there is little risk of a vehicle colliding with the bridge, in which case the Armco guardrails are not needed as all and are simply ruining the aesthetic qualities of the bridge. The other scenario is that indeed, Armco guardrails or other form of crash-tested barriers are needed, and if so then they should be mounted correctly to protect the bridge as well as vehicles. Correct mounting of Armco or other forms of crash-tested barriers is to attach them to railing posts that are devoted to just holding the guardrail and are not directly attached to the truss web.
Information and Findings From Ohio's Historic Bridge Inventory
The bridge carries a 2 lane road over a stream in a rural area of active farms.
The 1-span, 59'-long, rivet-connected Warren pony truss bridge is traditionally composed of built-up members. It has stock lattice railings.
Summary of Significance
The 1922 Warren pony truss has no distinguishing features. It has riveted connections, typical of Warren trusses from about 1900 to the 1940s when riveted connections began to be phased out in favor of welded
connections. The weld-connected Warren trusses continue to be a popular bridge type/design on county roads in Ohio. The survey has identified more than 500 pre-1961 Warren pony truss bridges, making them the most common truss
type/design surviving in the state. This example is not historically significant for its technology or context. More distinguished examples better represent the significance of the type/design in the development of the state's road
systems. The not eligible recommendation of the prior inventory remains appropriate.
Bridge Considered Historic By Survey: No
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