When the Ohio Department of Transportation (ODOT) recently constructed a new State Route 24 (SR 24) in Northwest Ohio, the old SR 24, which runs along the Maumee River, was turned over to the local engineers of Henry County. As part of this agreement, it was required that the original bridge structures along the old SR 24 be inspected and replaced, or rehabilitated, if necessary.
During this process, the old stone arch bridges along the old SR 24 were analyzed carefully. Upon inspection of the original bridge over Turkeyfoot Creek, it was determined that the structure was indeed deteriorating and needed to be rehabilitated. Originally constructed in 1845 as part of the Ohio to Erie Canal system, it was imperative that the historical significance of the bridge be preserved. For this reason, it was decided that the best solution was rehabilitation over replacement, and a 32'-8" x 13'-3" BridgeCor® Structural Plate, 127'-10.5" in length, was selected and installed. The single radius, BridgeCor arch enhances the established performance of 6" x 2" MULTI-PLATE® by offering nine times the stiffness and three times the strength. Not only is BridgeCor economical and easily assembled, but its bolted, segmental construction is manufactured with the industry's best equipment allowing for the longest laying length sheets in the industry.
Since the existing shape of the bridge was not standard, Contech Engineered Solutions worked closely with ODOT and the contractor, Miller Brothers Construction, to design a special, custom shape to reline the existing arch structure. BridgeCor was selected over other options for this specialized ability. The look of the original structure was preserved by utilizing as much as possible of the original limestone block on the end treatment.
"The original scope of work for this stone arch culvert was to perform a minimal amount of facing repairs to the wingwalls, headwalls, and arch rings only," stated Mike Benton, P.E. with ODOT District 2. "Due to the excessive amount of deteriorated blocks, both on the ends and inside the arch barrel, the original scope of work had to be amended. The structural plate liner installation proved to be the best alternative in order to properly and successfully rehabilitate the stone arch while still preserving the historical elements of the culvert."