Interstate 20 West - Columbia

The first of 13 interchanges for the capital city of Columbia, Exit 76A connects with I-77 south to the city of Forest Acres and multiple gates into Fort Jackson.

09/20/21

I-20 was expanded from four to six lanes west from Exit 82 / Spears Church Church Road to the diamond interchange (Exit 76B) with Alpine Road (Road 63) during construction from October 1, 2012 to Fall 2014.

09/20/21

Columbia Metropolitan Airport (CAE) lies southwest of Columbia between S.C. 602 through Springdale and S.C. 302 beyond Cayce.

09/20/21

Interstate 77 encircles the east side of Columbia along the Southeastern Beltway from I-20 at Exit 76A to I-26 in Cayce.

09/20/21

Paralleling I-77 north from S.C. 12 (Percival Road) 2.41 miles to U.S. 1 (Two Notch Road), Alpine Road (Road 63) meets I-20 at Exit 76B.

09/20/21

Interstate 20 lines the southern boundary of Sesquicentennial State Park. The park spreads north between Polo Road and U.S. 1 (Two Notch Road).

09/20/21

Exit 76B leaves westbound Interstate 20 for Alpine Road (Road 73) to Windsor Lake and the community of Woodfield.

09/20/21

Exit 76A separates for Interstate 77 (Southeastern Beltway) from I-20 west beyond the Alpine Road (Road 63) underpass.

09/20/21

The entrance ramp from Alpine Road separates for both the westbound mainline of I-20 and the adjacent ramps at Exit 76A to Interstate 77 (Southeastern Beltway).

12/20/13

Exit 76A departs from within the diamond interchange for Alpine Road to I-77. 610 miles long, I-77 joins the southeastern United States with Cleveland, Ohio and the Great Lakes region.

09/20/21

Traffic from both I-20 west and Alpine Road (Road 63) combines ahead of a ramp split for Interstate 77 south to Fort Jackson, Forest Acres and Cayce and north to Rock Hill.

09/20/21

Single lane ramps join Interstate 77 from I-20 west. I-77 provides a bypass route to I-26 east for Charleston while linking the capital city with Charlotte, North Carolina to the north.

09/20/21

A high flyover links I-77 north with I-20 west as part of the systems exchange between the two freeways near Windsor Lake.

04/14/12

12/21/13

Continuing through the cloverstack interchange with Interstate 77, a reassurance marker stands beyond the on-ramp from Alpine Road (Road 63).

04/14/12

Bending northward, Interstate 20 spans Windsor Lake ahead of the folded diamond interchange (Exit 74) with U.S. 1. Better known locally as Two Notch Road, U.S. 1 constitutes a busy commercial arterial from Pontiac and the outer suburbs southwest to I-20 at Dentsville.

05/24/19

A second reassurance marker follows along I-20 beyond Windsor Lake and the entrance ramps from Interstate 77.

05/24/19

Exit 74 loops away from I-20 west to U.S. 1 as the freeway spans both a CSX Railroad line and Two Notch Road. U.S. 1 continues southwest along an older commercial boulevard to Dentsville, Columbia Place Mall, Arcadia Lakes and Millwood Avenue in Columbia.

05/24/19

S.C. 277 (Northeastern Expressway) provides a direct route to Downtown Columbia from Interstate 20 west via forthcoming Exit 73A. The 8.14 mile long route spurs southwest from I-77 to Bull Street, where it ties into U.S. 76.

05/24/19

Confirming marker preceding the directional cloverleaf interchange (Exit 73A) with S.C. 277 south. There is no Exit 73B in the westbound direction or access to S.C. 277 north.

05/24/19

Exit 73A departs I-20 west for S.C. 277 south. S.C. 277 has three exits before the freeway end at Bull Street and Harden Street Extension near the Cottontown neighborhood in Columbia.

05/24/19

S.C. 555 (Farrow Road) mirrors the course of S.C. 277 southwest from I-77 to the Colonial Heights neighborhood in Columbia. A folded diamond interchange joins S.C. 555 with I-20 adjacent to a Norfolk Southern Railroad line at Exit 72.

05/24/19

Exit 72 leaves I-20 west for S.C. 555 (Farrow Road). A 14.90 mile long route, S.C. 555 originates at the intersection of Harden Street and S.C. 12 (Taylor Street) at Waverly in Columbia and ends at U.S. 21, south of Blythewood.

09/20/21

U.S. 21 (Wilson Boulevard) angles southwest from Blythewood and I-77 at Exit 24 to follow N Main Street south from forthcoming Exit 71 into the city of Columbia.

09/20/21

Interstate 20 maintains six overall lanes across the north side of Columbia with a 60 mile per hour speed limit. The confirming marker west of S.C. 555 was knocked down by January 2016.

12/20/13

The Carolina Crossroads interchange with Interstate 26 is 7.2 miles ahead along I-20 west. Augusta, Georgia is an hour beyond there.

09/20/21

A parclo B2 interchange joins I-20 with U.S. 21 at Exit 71. U.S. 21 (N Main Street) south combines with U.S. 321 at Columbia College and U.S. 176 at the Earlewood community. The three routes circumvent Downtown via Elmwood Avenue west and Huger Street south.

09/20/21

Curving southward, Interstate 20 advances to the parclo B2 interchange (Exit 70) with U.S. 321 (Fairfield Road) at Exit 70.

09/20/21

U.S. 321 constitutes a 517 mile long, L-shaped route between U.S. 17 at Hardeeville, South Carolina and Interstate 40 near Lenior City, Tennessee. Locally the route follows Fairfield Road south to the overlap with U.S. 21/176 through Columbia, West Columbia and Cayce.

09/20/21

North from Exit 70, U.S. 321 travels 22 miles to the Fairfield County seat of Winnsboro.

09/20/21

A modified diamond interchange (Exit 68) links I-20 with S.C. 215 (Monticello Road) at Windhill Drive and Buckner Road (Road 511).

09/20/21

Buckner Road (Road 511) runs along the south side of I-20 from U.S. 321 west 1.38 miles to S.C. 215. A number of industrial businesses line the freeway right of way.

09/20/21

Exit 68 leaves I-20 west to overtake parallel Windhill Drive ahead of S.C. 215 (Monticello Road). S.C. 215 branches northwest from U.S. 21/321 near the Eau Claire community in Columbia and continues 21 miles from I-20 to Jenkinsville.

09/20/21

Progressing west to the Broad River, Interstate 20 lines the bluffs south of Crane Creek. The exchange with I-26 lies three miles ahead.

09/20/21

Built in 1965 and reconstructed in 1991,¹ a nondescript bridge carries Interstate 20 across the Broad River. The freeway enters a swath of Columbia city limits at the crossing.

09/20/21

Flowing 150 miles south from Black Mountain in North Carolina, the Broad River is a tributary of the Congaree River. The mouth lies opposite the Saluda River, where the Congaree River commences southeast from Columbia to Lake Marion.

12/20/13

U.S. 176 turns west from U.S. 21/321 (N Main Street) and the Earlewood community to span the Broad River via River Drive. A diamond interchange (Exit 65) joins U.S. 176 with I-20, a mile east of Interstate 26.

09/20/21

An auxiliary lanes opens westbound to Exit 65 for U.S. 176 (Broad River Road). U.S. 176 comprises a busy commercial arterial, serving the St. Andrews community and Dutch Square Center mall.

05/24/19

Two lanes part ways with I-20 west for U.S. 176 (Broad River Road). U.S. 176 follows the I-26 corridor northwest to Harbison State Forest and the suburb of Irmo. Overall U.S. 176 travels just 238 miles from Hendersonville, North Carolina to Goose Creek in the LowCountry.

09/20/21

The cloverleaf interchange (Exits 64B/A) with Interstate 26 follows at the unincorporated community of St. Andrews. This sign was knocked down in 2018 and subsequently replaced.

09/20/21

Exit 64B joins commuters with I-26 west for Irmo and the outer suburbs to White Rock. Interstate 26 continues northwest to Newberry, Clinton and Spartanburg in the Upstate.

09/20/21

Exit 64B joins I-26 west ahead of St. Andrews Road along a heavily traveled stretch of freeway to U.S. 76/176 at Irmo. Overall I-26 west joins Cola with Greenville (via I-385), Spartanburg, Asheville, North Carolina and the Tri-Cities in Tennessee.

09/20/21

Weaving traffic patterns at the cloverleaf joining I-20/26 and the close proximity of the I-26/126 split to the south, led to the nickname of Malfunction Junction. Phase 3 of the Carolina Crossroads project from late 2023 to Fall 2028 builds a turbine interchange at I-20/26.

09/20/21

Interstate 20 enters Lexington County at the I-26 over crossing. Exit 64A follows onto I-26 east to Orangeburg, Summerville and Charleston.

09/20/21

Phase 1 of the Carolina Crossroads project, from Spring 2022 to Late 2024, reconfigures the nearby exchange along I-26 east with I-126 to remove weaving traffic. I-126/U.S. 76 spur east to Downtown Columbia while I-26 shifts west through West Columbia and Cayce.

09/20/21

Bush River Road (Road 31/273) stems west from U.S. 176 (Broad River Road) as a commercial arterial to Interstate 20 at Exit 63.

09/20/21

North from the parclo interchange (Exit 63) with I-20, Bush River Road (Road 273) winds through suburban areas of St. Andrews to Tram Road. Phase 3 of the Carolina Crossroads project will rebuild Exit 63 into a DDI.

09/20/21

Turning more southward, Interstate 20 crosses over both a CSX Railroad line and the Saluda River beyond Exit 63.

04/16/12

09/20/21

U.S. 378, a 234 mile long highway stretching west from Conway to Washington, Georgia, converges with Interstate 20 at a six-ramp parclo interchange (Exit 61) in one mile.

09/20/21

Exit 61 is the first of three interchanges along Interstate 20 serving both the city of Lexington and Lake Murray Dam (via S.C. 6 north). U.S. 378 joins Lexington with West Columbia along Sunset Boulevard.

09/20/21

U.S. 378 arcs west from Exit 61 along a commercialized route. Beyond Lexington, U.S. 378 stays south of Lake Murray along a rural course to Saluda.

10/03/10

The six lane extent of Interstate 20 through the Columbia metropolitan area previously concluded west of Exit 61.

09/20/21

Construction from 2016 to September 22, 2020 late 2021 widened Interstate 20 through the suburbanized areas of Lexington west from U.S. 378 to Exit 51.

09/20/21

U.S. 1, which last met I-20 at Dentsville and Exit 74, returns from Columbia to meet the freeway at forthcoming Exit 58.

09/20/21

Following Augusta Road from West Columbia, U.S. 1 comprises a five lane commercial boulevard to a parclo A2 cloverleaf interchange (Exit 58) with Interstate 20.

09/20/21

U.S. 1 (Augusta Road) winds west from Exit 58 into Lexington, following Main Street through Downtown before briefly combining with U.S. 378.

09/20/21

U.S. 1 stays north of I-20 through Batesville-Leesville to Exit 22.

09/20/21

U.S. 1 east connects with Ermine Road south to Columbia Metropolitan Airport (CAE) and west with S.C. 6 (Lake Drive) north to Lake Murray Dam.

09/20/21

The ensuing reassurance marker for I-20 west precedes a Norfolk Southern Railroad crossing.

04/16/12

Augusta, Georgia is 60 miles to the west. The exchange with S.C. 6 (S Lake Drive) is next in two miles.

04/16/12

Stretching 116 miles southeast from Ballentine, near Lake Murray, to Moncks Corner in the Lowcountry, S.C. 6 (S Lake Drive) advances from Downtown Lexington to meet Interstate 20 on the south side of the city.

09/20/21

Exit 55B departs I-20 for S.C. 6 (S Lake Drive) north into Lexington. S.C. 6 straddles the eastern shore of Lake Murray by Lake Murray Dam to S.C. 60 near Irmo.

09/20/21

A loop ramp was added for I-20 west onto S.C. 6 south at Exit 55A. S.C. 6 continues through nearby Red Bank to Edmond and an overlap with S.C. 302. S.C. 302 leads to the town of Pelion while S.C. 6 turns eastward to the town of Swansea.

12/31/12