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Denniston Bridge

Miami County Bridge 63

Denniston Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: February 18, 2017

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Key Facts

Facility Carried / Feature Intersected
CR-440 West Over Eel River
Rural: Miami County, Indiana: United States
Construction Date and Builder / Engineer
1883 By Builder/Contractor: Massillon Bridge Company of Massillon, Ohio

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
120 Feet (36.6 Meters)
Structure Length
243 Feet (74.1 Meters)
Roadway Width
17.7 Feet (5.39 Meters)
2 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

This early and nicely ornamented Pratt truss is one of the finest examples of this once-common type in the area. It features portal bracing ornamentation that the Massillon Bridge Company used on a few bridges in Indiana, but is not typically found on products of the Massillon Bridge Company in other states. The historic integrity of this bridge is excellent.

Information and Findings From DHPA Historic Bridge Survey

Statement of Significance

One of the oldest Pratts extant in Indiana and the oldest example of this prolific Ohio firm, the spans retain their integrity including decorated portals and bracing.

Architectural Description

The Massillon Bridge Company of Massillon, Ohio, fabricated this two-span, pin-connected Pratt through structure of 244' upon cut stone abutments, wingwalls, and pier. Intermediate verticals of two sizes of reinforced I beams subdivide each 122' span into most of its eight panels. Eyebars provide the diagonals: pairs stretch toward center span from the top panel point to the bottom of all except the endpost panels; cylindrical eyebars with turnbuckles counter the others in the three most central panels. Special adjustable eyebars run through the intermediate verticals parallel to and about midway between the chords. U-bolted to the lower pins, heavy and rectangular girder floor-beams carry the timber deck with its 17'7" roadway and 20'5" of vertical clearance.

Other Information

Bridge nameplate. Butler, Fairman and Seufert, Inc., Bridge Inspection/Reinspection Report: Miami County (Indianapolis, 1973, 1977, 1981).

Bridge Considered Historic By Survey: Yes


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