Twin-Pipe Structure Replacement
ODOT District 12-0, Hambden Township, Geauga County, OH
Stahl Sheaffer’s first project with the Ohio Department of Transportation, GEA-166-01.08, is a twin-pipe structure replacement beneath SR 166 in Hambden Township. Stahl Sheaffer’s bridge group teamed with additional firms to replace the original twin-pipe structure built in 1961 with a four-sided concrete box culvert. As part of the scope, Stahl Sheaffer performed hydraulic studies with several combinations of grade changes and box sections, in an attempt to reduce the culvert’s span to below 10 ft., so the district can remove it from ODOT’s bridge inventory and the burden of annual inspections.