Project Update: US 301 bridge project advances to construction

October 3, 2022

The replacement of both US 301 Bridges over Four Hole Swamp is set to begin in the spring of 2023

Officials with the South Carolina Department of Transportation (SCDOT) announced the advancement to construction of the US 301 Bridge Replacement Project in Orangeburg County. This bridge project was identified as a high priority project in the Agency’s Strategic 10-Year Plan.

The replacement and rehabilitation of bridges throughout the state’s network is a key component of the Strategic 10-Year Plan, and to date, SCDOT has replaced or repaired 274 bridges in the network since 2017 and is on track to exceed the original target, with a new target of 500 bridges.

Currently, the southbound bridge on US 301 over Four Hole Swamp is load restricted with only one lane open to traffic. This project will replace both the northbound and southbound bridge structures, ensuring that all lanes of traffic are open and able to flow smoothly. Other traffic safety improvements include widening the shoulders along the bridges, and resurfacing US 301 on either side of the project—from a quarter mile south of the bridges to the intersection with US 178.

Construction on the project is expected to begin in the spring of 2023, and is anticipated to take just under two years to complete. The total cost of the project is expected to be $23 million.

Drivers in the area of the project should use caution, pay attention to all signs and traffic control devices, and stay alert for crews working in the area. Community members are encouraged to stay tuned to our platforms for project updates, including the 511 travelers’ information app and our website at