Fact Box

Interstate 77

Length- 610 miles

South end- Columbia, SC

North end- Cleveland, OH

States served- SC, NC, VA, WV, OH

Interstate 77 (abbreviated I-77) is an Interstate Highway in the eastern United States. It traverses diverse terrain, from the mountainous state of West Virginia to the rolling farmlands of North Carolina and Ohio. It largely supplants the old U.S. Route 21 between Cleveland, Ohio, and Columbia, South Carolina, as an important north–south corridor through the middle Appalachians. The southern terminus of Interstate 77 is in Columbia at the junction with Interstate 26. The northern terminus is in Cleveland at the junction with Interstate 90.

The East River Mountain Tunnel, connecting Virginia and West Virginia, is one of only two instances in the United States where a mountain road tunnel crosses a state line. The other is the Cumberland Gap Tunnel, connecting Tennessee and Kentucky.

Major intersections

• Interstate 26 near Columbia, South Carolina
• Interstate 20 near Columbia, South Carolina
• Interstate 485 in Charlotte, which is the city's outer belt
• Interstate 277 in Charlotte, which is the beltway of the city's downtown area
• Interstate 85 in Charlotte, North Carolina
• Interstate 40 in Statesville, North Carolina
• Interstate 74 runs concurrently for 4 miles (6.4 km) near Mount Airy, North Carolina
• Interstate 81 runs concurrently for 9 miles (14.5 km) around Wytheville, Virginia
• Interstate 64 in Beckley, West Virginia. They stay joined until Charleston, West Virginia.
• Interstate 79 in Charleston, West Virginia
• Interstate 70 in Cambridge, Ohio
• Interstate 277 in Akron, Ohio (a connector route to Interstate 76 on the south side of Akron)
• Interstate 76 in Akron, Ohio (I-76 runs concurrently with I-77 for a few miles in downtown Akron)
• Interstate 271 in Richfield, Ohio
• Interstate 80/Ohio Turnpike in Richfield/Brecksville, Ohio
• Interstate 480 in Independence, Ohio
• Interstate 490 in Cleveland, Ohio
• Interstate 90 in Cleveland, Ohio