I-77 South Carolina Road Conditions

I-77 crosses 91 miles of South Carolina, from the North Carolina line to its end in the state. That is 15% of I-77's 610 miles.

Inside South Carolina it meets I-26 and I-20 at Columbia.

By mile marker, I-77 passes Columbia 5. It is the only city on this stretch that the mileposts name.

No full closures are reported on I-77 in South Carolina as of Sep 14, 2026 10:18 PM EDT, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.

NOAA 1991–2020 Climate Normals, from a weather station in South Carolina. A dash is a figure that station does not report, not a zero.

Towns Along I-77 in South Carolina

From Pine Ridge to Tega Cay, with the position of each town measured along this stretch itself — counted from the Pine Ridge end, not from a state milepost, so it will not match the numbers on the signs.

1. 0 mi Pine Ridge 2.2 mi off the road
2. 0 mi South Congaree 4.1 mi off the road
3. 0 mi Springdale 3.3 mi off the road
4. 0 mi West Columbia 4.6 mi off the road
5. 1 mi Cayce 1.5 mi off the road
6. 13 mi Forest Acres 1.7 mi off the road
7. 15 mi Columbia 1.2 mi off the road
8. 27 mi Blythewood
9. 79 mi Rock Hill 2.5 mi off the road
10. 84 mi Fort Mill 1.7 mi off the road
11. 85 mi Tega Cay 2.7 mi off the road

Places from the US Census Gazetteer and population estimates, both public domain; distances measured along this page's own route geometry.

Related Roads

I-77 in South Carolina Road Weather FAQ

Is Interstate 77 in South Carolina closed right now?

No full closures are reported on I-77 in South Carolina. No lane closures or roadworks are reported either.

What are I-77 in South Carolina road conditions today?

The map on this page colors the route along I-77 in South Carolina by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Sep 14, 2026 10:18 PM EDT. Right now temperatures run from 80°F to 83°F and the strongest wind is 5 mph.

Where are South Carolina road closures reported officially?

South Carolina's official traveler information service is 511sc.org, and it is where closures and restrictions are reported.

How often are I-77 in South Carolina road conditions updated?

The road surface and weather layers are rebuilt whenever this page is opened with data more than ten minutes old, and refreshed on a schedule in between, so nothing here is more than about two hours old even on a road nobody has looked at. Closures and road blocks are re-imported from the state 511 feeds every fifteen minutes, and the written state-by-state summaries are refreshed daily. Every section on this page carries the time its data was fetched.