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SCDOT to Start I-77 Bridge Deck Rehabilitation Project March 24

I-77 Northbound from I-26 to Bluff Road to Close for Nine Days

*Media availability March 21, 2023 – Details to follow*

Columbia, S.C. (March 10, 2023) – SCDOT will start the Interstate 77 Bridge Deck Rehabilitation Project on Friday, March 24. Weather permitting, the project will begin March 24 at 9 p.m. with the closure of access to I-77 northbound from I-26 to Bluff Road.

The project will rehabilitate a total of 17 bridge decks on both sides of I-77 between the I-26 interchange (mile marker 0) to Bluff Road (mile marker 5).

To minimize traffic disruption, work will be completed under two separate close and detour operations. The northbound closure will begin March 24, and the southbound closure will take place in late April 2023.

Nine northbound bridges and eight southbound bridges will be rehabilitated. Having assessed the condition of all 17 bridge decks, SCDOT will rehabilitate each bridge deck as needed. Some of the construction activity will include the removal of old concrete, pouring new concrete spans, and grinding new concrete to create a smooth driving surface.

SCDOT is repairing and replacing hundreds of deficient bridges across South Carolina as part of the agency's Strategic 10-Year Plan to improve the state's roads and bridges.

I-77 Northbound Closure and Detour Information

I-77 Northbound will be closed from the I-26 interchange to Bluff Road starting at 9 p.m. on Friday, March 24 through Sunday, April 2 (9 total days).

The signed detour route is about 20 miles using I-26 Westbound, I-20 Eastbound, and S.C. 277 Northbound. Refer to the Interstate 77 Bridge Deck Rehabilitation Project website for a map.

SCDOT encourages drivers to plan their detour routes in advance. Real-time traffic and road closure information is always available at and on the SCDOT 511 mobile app.    


The South Carolina Department of Transportation (SCDOT) is the state agency with oversight of South Carolina’s network of highways and bridges, including responsibilities such as planning, design, construction, financing, and roadway safety. To ensure the nation’s fourth-largest highway system is prepared to serve the needs of South Carolina’s growing economy and population, SCDOT has developed a Strategic 10-Year Plan that addresses improvements to the state’s highway and bridge systems. Learn more at


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