|Bridge Name||Facility Carried / Feature Intersected||Location||Structure Type||Construction Date and Builder/Engineer|
Beach Road Bridge
||Westerville Bikeway Over Alum Creek||Westerville: Franklin County, Ohio||Metal Pin-Connected Whipple Through Truss, Fixed||1888 By Builder/Contractor: Columbus Bridge Company of Columbus, Ohio|
|Main Span Length||Structure Length||Roadway Width||Main Spans||NBI Number|
|173 Feet (52.7 Meters)||179 Feet (54.6 Meters)||16 Feet (4.9 Meters)||1||2530139|
This bridge is rare as a Whipple truss, but is even more rare as a surviving example of a bridge built by the Columbus Bridge Company, a local bridge builder. Only a couple other examples of this company's work appear to remain in the country. This bridge was relocated from Beach Road over Big Darby Creek on the Madison County line.
The historic integrity of the bridge remains good even after this relocation, although the original railings are missing. On the note of railings, the current railing system on the bridge is very heavy and is welded directly to all of the compression vertical members. Further, it is not evident that there are any expansion joints installed on this railing. Because these railings are so massive, because this is a long pin-connected Whipple truss, and because no expansion joints are apparent, these railings may be freezing the bridge up and interfering with the bridge's ability to function correctly. Pin-connected truss bridges are not supposed to be rigid; their members are intended to move and flex. When they cannot move, this tends to present as bowing in the bottom chord and other tension members. While it is not apparent if this is occurring, it was noted that the railing itself appears to be warping, possibly under the stress of the bridge tying to flex as it needs to.
When the Charlotte Highway Bridge was restored, far more lightweight railings were placed on the bridge, yet even with these, expansion joints were specifically installed on the railings to allow the bridge to flex as needed.
Information and Findings From Ohio's Historic Bridge Inventory
The bridge carries a pedestrian trail/bike path over a stream in Westerville.
Relocated from Beach Road over Big Darby Creek in 1999. Relocated to City of Westerville in 1999. Award October 31, 2000.
Summary of Significance
The pin-connected double-intersection Pratt thru
truss bridge was relocated in 1999. It retains its integrity of design
and materials. It is a technologically significant example of its
type/design, fabricated by a local bridge company. The eligible
recommendation of the prior inventory remains appropriate.
There are 13 examples of the bridge type important to the development and maturation of the pin-connected thru truss bridge. They date from 1881 and concentrate in the 1880s. Even though there are more than 12 extant examples in Ohio, each built in the 1880s has high significance based on overall scarcity (everywhere but in Ohio) of the design. This is a major and technologically significant bridge type. The bridge has high significance.
Bridge Considered Historic By Survey: Yes
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