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Lucerne Road Bridge

Ariel Foundation Park Pratt Truss Bridge

Lucerne Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: September 11, 2015

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Key Facts

Facility Carried / Feature Intersected
Park Road Over Park Stream
Mount Vernon: Knox County, Ohio: United States
Construction Date and Builder / Engineer
1900 By Builder/Contractor: Mount Vernon Bridge Company of Mount Vernon, Ohio

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
50 Feet (15.2 Meters)
Structure Length
52 Feet (15.9 Meters)
Roadway Width
13.4 Feet (4.08 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

Ariel Foundation Park is a new, unique park created in Mt Vernon on former industrial land. The park was still under development when this bridge was visited. The park is unique for embracing history and heritage as part of its design. Some elements of the old factory buildings were saved and preserved for example. Additionally two bridges in the park include the reuse of historic trusses. The other one can be seen here. Although the park chose to use the historic trusses of both bridges as non-functional decorations, and not load-bearing structures, it nevertheless is a good preservation of trusses that otherwise likely would have become scrap metal, and the bridges go a long way to offering beauty and heritage to this unique park. In the case of this bridge, it reunites Mount Vernon with its own bridge heritage by bringing a product of the Mount Vernon Bridge Company into the city.

On a side note, anyone with an understanding of steel fabrication and erection will enjoy a good hearty laugh at major mistake made by the contractor who installed the trusses. The load-bearing bridge is a steel stringer bridge. The trusses bear at the ends on the concrete abutment, but at each panel point the trusses were also intended to bear on steel "stub" beams that are bolted to the stringer beams, so as to provide full support to the trusses and perhaps try to convey the original function of the trusses in relation to floor beams. However, the contractor installed the stub beams upside down! The bolt holes were not intended to be centered on the beam, so this was a critical mistake and meant that the stub beams did not make contact with the trusses above. The attempt to fix this is equally hillarious. The contractor got a couple pieces of unpainted and ungalvanized channel and attempted to weld them onto the top of the stub beams to meet the bottom chord of the truss. As you will see in the photo gallery, even this didn't quite work out. In the spot photographed, only one of the channels actually made contact with the trusses. The other piece of channel was welded to the stub beam too far inward and failed to make contact with the truss vertical member!


Photo Galleries and Videos: Lucerne Road Bridge

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Maps and Links: Lucerne Road Bridge

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