Photo courtesy Indiana Dept. of Transportation Cracks discovered during a routine September inspection of the double-deck structure, which spans the Ohio River between Kentucky and Indiana, forced an immediate shutdown and set of a $13.9-million repair job. Repairs to cracks on the Interstate 64 Sherman Minton Bridge, a double-deck structure spanning the Ohio River between Kentucky and Indiana, will cost 30% less than initially estimated and require only four-and-a-half months to execute rather than the six months anticipated by the Indiana Dept. of Transportation, INDOT officials say. The contract, awarded Oct. 18 to Louisville-based Hall Contracting of Kentucky, indicates repairs to
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.