Interstate 20 (I‑20) is a major east–west Interstate Highway in the Southern United States. I‑20 runs 1,535 miles (2,470 km) beginning near Kent, Texas, at I-10 to Florence, South Carolina, at I-95. Between Texas and South Carolina, I‑20 runs through northern Louisiana, central Mississippi, western and north-central Alabama, and north-central Georgia. I‑20 intersects seven of the ten primary north–south Interstates (all except I‑5, I‑15, and I‑25) and also the east-west Interstates 10 and 30.

From its terminus at I‑95, the highway continues about 2 miles (3.2 km) eastward into the city of Florence as Business Spur 20.

Major intersections

Texas

I-10 in Kent

I-30 near Fort Worth

I-820 in Fort Worth (twice)

I-35W in Fort Worth

I-35E in Dallas, Texas

I-45 in Dallas

I-635 in Dallas

Louisiana

I‑220 in Shreveport

I-49 in Shreveport

I‑220 in Bossier City

Mississippi

I-220 in Jackson

I-55 in Jackson

I-59 from Meridian until Birmingham, AL

Alabama

I-359 in Tuscaloosa

I-65 in Birmingham (Malfunction Junction)

I-59 in Birmingham

I-459 in Birmingham (twice)

Georgia

I‑285 in Atlanta (twice)

I-75 / I-85 (Downtown Connector) in Atlanta

I-520 in Augusta

South Carolina

I-520 near North Augusta

I-26 in Columbia

I-77 in Columbia

I-95 in Florence

Source: http://en.wikipedia.org/wiki/Interstate_20