The proposed project includes replacing the existing US 301 southbound bridge structure and improving the US 301 roadway approaches to meet current design standards. It also includes replacing the bridge on Bobcat Landing Road and realigning Bobcat Landing Road to maintain and improve access to Bobcat Landing from US 301. The road will be shifted south onto a new alignment to line up with the existing US 301 median access road just south of the US 301 bridge.
The South Carolina Department of Transportation (SCDOT) proposed to replace the existing U.S. Highway 301 (Bamberg Road) southbound bridge over the South Edisto River in Bamberg and Orangeburg counties and the adjacent Bobcat Landing Road (State Road 439) bridge in Bamberg County.
The project includes demolishing the existing U.S. 301 southbound structure and improving the roadway approaches to meet current design standards. Similar work is planned to redo the bridge on SR 439 and realigning the roadway itself to better maintain and improve access to Bobcat Landing from U.S. 301.
Bamberg Road will be shifted south onto a new alignment to line up with the existing U.S. 301 median access road just south of the U.S. 301 bridge, according to a SCDOT notice on the project.
Bobcat Landing Road and the boat ramp will remain open during construction of its new bridge.
Construction on both is set to begin late this year or in early 2021.
To allow traffic to be maintained along Bamberg Road through the project area during construction, the proposed project requires traffic control north and south of the U.S. 301 bridge. As crews work, the southbound lanes of U.S. 301 in the project area will temporarily close and all southbound traffic will be shifted to a northbound travel lane using crossovers in the median of the highway.
The crossovers will be created by adding approximately 8 ft. of pavement to the northbound side of Bamberg Road, 12 ft. of pavement to the median in one location north of the bridge, and another 12 ft. of pavement to a location south of the bridge to get motorists from the southbound side of U.S. 301 to the northbound.
Opposing traffic on the northbound side will be separated with concrete barriers or flexible delineators, the SCDOT said.
Other temporary daily lane and shoulder closures may also be necessary on U.S. 301 during project construction.
Four design alternatives were considered for the projects — two for each of the bridge replacements.
The U.S. 301 southbound bridge work's preferred alternative includes building the new structure on the current centerline of Bamberg Road South with no shift in the alignment. Therefore, traffic would be maintained through the project area during construction, according to the SCDOT.
The preferred alternative for the Bobcat Landing Road bridge upgrade creates a new alignment for SR 439 that would allow for construction of a new span. Demolition of the old bridge and removal of the existing roadway embankment would occur once construction of the new structure is complete; therefore, access to the boat ramp would be maintained during construction.
The U.S. 301 southbound bridge was built in 1922, before widened in 1951 and again in 1973. The Bobcat Landing Road bridge is a 53-year-old structure.
The SCDOT determined both structures have deficiencies that require replacement bridges. To view project information, visit www.scdot.org.