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The Palmetto Commerce Interchange opened early and on budget, according to the Charleston County, improving traffic flow and access between Ashley Phosphate Road and U.S. Highway 78 in Charleston County. (Photo/DepositPhotos)
The Palmetto Commerce Interchange opened early and on budget, according to the Charleston County, improving traffic flow and access between Ashley Phosphate Road and U.S. Highway 78 in Charleston County. (Photo/DepositPhotos)
Palmetto Commerce Interchange opens early in Charleston
Hollie Moore // November 19, 2025//
- $90 million interchange opens months ahead of schedule
- Project funded by 2016 half-cent Charleston County sales tax
- Improves traffic flow between Ashley Phosphate Road and U.S. 78
- Banks Construction, Davis & Floyd and HDR led project work
Santa came early this year for Ashley Phosphate Road and U.S. Highway 78 commuters.
After its original projection to be completed in February 2026, the Palmetto Commerce Interchange is completed and open to the public as of Nov. 17.
The $90 million project came to life in 2013 and was fully funded by a 2016 half-cent sales tax. Construction began in August 2023; the project was completed on budget, according to a Charleston County announcement.
Charleston County said the interchange will reduce travel times, expand access options and improve traffic flow on the Interstate 26 corridor between Ashley Phosphate Road and U.S. Highway 78. The interchange is designed to avoid the residential area alongside the interstate.
Banks Construction was the general contractor for the interchange, which was designed by Davis & Floyd with construction, engineering and inspection through HDR.
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