The South Carolina Department of Transportation is constructing a new high-level fixed-span bridge on US 21 over the Harbor River in Beaufort County and is removing the existing swing-span bridge, which is more than 78 years old .
The new bridge construction project is being supported by Yonges Island, S.C. based Stevens Towing Co. It has a contract to move a total of 65 girders for the bridge from Standard Concrete in Savannah, Ga. Each girder is 168 feet long and weighs a little over 100 short tons.
Charlotte, S.C. headquartered project contractor United Infrastructure Group has chartered one one of Stevens Towing’s 260 feet x 52.5 feet x 12 ft inland super jumbo hopper barges to move the girders and Stevens’ tug Island Fox is handling the tows.
“We just completed our first delivery on July 17th and will be back in Savannah to load the second batch is August,” says Stevens Towing. “We will deliver each batch in groups of 10 girders every few weeks until the job is completed.”
The girders are manufactured by Standard Concrete in Savannah and loaded onto the barge at at its Savannah River facility, which has a barge slip and mobile gantry cranes for barge loading operations.