The Sun Belt Connector (I-20) Road Conditions & Traffic

01 Route overview

Interstate 20 runs 1,539 miles from Kent, Texas (where it splits off from I-10 in the Davis Mountains) to Florence, South Carolina, where it terminates at I-95. It is the secondary southern east-west corridor, paralleling I-10 about 200 miles to the north and serving the major Sun Belt cities of Dallas-Fort Worth, Shreveport, Jackson, Birmingham, Atlanta, Augusta, and Columbia.

For freight, I-20 is the preferred long-haul route between the Texas oil patch and the southeastern US, particularly for petroleum products, lumber, and automotive supplies feeding the Mercedes, Hyundai, Honda, and BMW assembly plants in Alabama, Georgia, and South Carolina. Truck volume is heaviest in the metro stretches: the I-20 at I-285 (West) interchange in Atlanta ranks among the nation's worst truck bottlenecks (ATRI ranked it #6 in 2024, and #10 in 2025), making it the busiest congestion point on the whole corridor.

The terrain is mostly rolling. The Texas Hill Country and the southern Appalachian foothills are the only significant climbs. Weather hazards skew toward severe thunderstorms, tornadoes (Dixie Alley runs right through the central segment), and occasional ice events from late January through February. The Atlanta Perimeter (I-285) intersection is one of the most congested truck interchanges on any US interstate.

Begins at I-10 in Kent, TX and ends at I-95 in Florence, SC
Crosses six states: TX, LA, MS, AL, GA, SC
Carries the bulk of Texas-to-Southeast freight
Atlanta segment (with I-285) is among the most congested in the South
Atlanta has three of ATRI's 2024 top 10 national truck bottlenecks: I-285 at I-85 North (#5), I-20 at I-285 West (#6), I-285 at SR 400 (#9)
Concurrent with I-59 across most of central Alabama
Crosses the Mississippi River at Vicksburg
Designated hurricane evacuation route from coastal LA and MS

02 Key cities & junctions

State	Mile	City / Junction
TX	MM 0	Kent (I-10 jct)
TX	MM 138	Odessa
TX	MM 158	Midland
TX	MM 287	Abilene
TX	MM 408	Fort Worth (I-35W jct)
TX	MM 442	Dallas (I-35E jct)
TX	MM 528	Tyler / Longview
LA	MM 19	Shreveport (I-49 jct)
LA	MM 95	Monroe
MS	MM 4	Vicksburg
MS	MM 47	Jackson (I-55 jct)
MS	MM 154	Meridian (I-59 jct)
AL	MM 17	Tuscaloosa
AL	MM 130	Birmingham (I-65/I-59 jct)
AL	MM 173	Anniston
GA	MM 51	Carrollton
GA	MM 91	Atlanta (I-75/I-85/I-285 jct)
GA	MM 165	Madison
GA	MM 199	Augusta
SC	MM 18	Aiken
SC	MM 64	Columbia (I-26/I-77 jct)
SC	MM 160	Florence (I-95 jct)

04 Notable hazards & trouble spots

Hazard

Severe truck congestion and HOV/HOT lane restrictions

Atlanta / I-285 interchange (MM 50-90)

I-20 through metro Atlanta intersects I-285, I-75, and I-85 in a 40-mile span that is among the busiest truck corridors in the country. GDOT enforces left-lane truck restrictions and operates HOT lanes that are off-limits to commercial vehicles. Delivery windows that miss the morning and afternoon peaks save hours.

Hazard

Concurrent interstate, frequent incident-driven closures

Birmingham I-20/I-59 stack (MM 125-130)

I-20 and I-59 share pavement through downtown Birmingham. The elevated section is narrow, has tight curves, and any incident on the bridge spreads queues across both interstates. ALDOT publishes real-time alerts; allow extra time during peak hours.

Hazard

Tornado and severe-storm corridor

Dixie Alley severe weather (MM 600 TX - 100 GA)

I-20 from East Texas through Georgia runs through the heart of "Dixie Alley." Unlike the Great Plains, where most tornadoes hit in the late afternoon, the Southeast sees a much larger share of its tornadoes at night, when Gulf moisture keeps storms going after dark and warnings are easy to sleep through (Weatherology; National Geographic, citing the 1950-2019 record, found over 35% of tornadoes in several Southern states struck at night). Severe thunderstorms with damaging winds and hail are routine from March through May. Monitor NWS alerts and park under solid shelter when warnings are active.

Hazard

Long, narrow Mississippi River crossing

Vicksburg Bridge, MS (MM 1-4)

The I-20/US-80 bridge over the Mississippi at Vicksburg is a long-span crossing with limited shoulders. High winds and bridge ice events can prompt MDOT to close the crossing. The practical detour adds 100+ miles via Greenville or Natchez.

Hazard

Limited services and oil-patch truck congestion

West Texas (MM 0-280)

The 280 miles between Kent and Abilene cross the Permian Basin, where oil-field traffic dramatically increases truck volume in either direction. Construction is constant. Fuel and parking thin out east of Pecos, so plan stops at Odessa or Midland.

05 Active incidents (67)

CONSTRUCTION AL

Planned Roadway Improvements

I-20/59 EB @ MP 104.33

CONSTRUCTION AL

Planned Bridge Work/Inspections

I-20/59 EB/WB @ MP 28.65 to MP 30

CONSTRUCTION AL

Planned Bridge Work/Inspections

I-20/59 WB @ MP 71.5 to MP 69

CONSTRUCTION MS

Road Work : I-20 E between Flowers / Ceres Blvd EX 15 and MS 22 / Flora / Edwards EX 19 - Left lane closed

I-20 between Flowers / Ceres Blvd EX 15 and MS 22 / Flora / Edwards EX 19

CONSTRUCTION MS

Road Work : I-20 W between MS 22 / Flora / Edwards EX 19 and Flowers / Ceres Blvd EX 15 - Right lane closed

I-20 between MS 22 / Flora / Edwards EX 19 and Flowers / Ceres Blvd EX 15

CONSTRUCTION GA

roadwork

I-20

CONSTRUCTION MS

Road Work : I-20 E at MS River Bridge - Right lane closed

I-20 at MS River Bridge

INCIDENT AL

Disabled Vehicle

I-20 WB @ MP 187.96

INCIDENT AL

Hazmat Spill

I-20/59 EB @ MP 96.7

INCIDENT AL

Abandoned Vehicle

I-20/59 EB @ MP 45.71

CONSTRUCTION AL

Planned Bridge Work/Inspections

I-20/59 WB @ MP 31.02 to MP 27.41

CONSTRUCTION AL

Planned Roadway Improvements

I-20/59 EB/WB @ MP 0.1 to MP 4.58

CONSTRUCTION AL

Planned Roadway Improvements

I-20/59 EB/WB @ MP 75.8 to MP 100.5

CONSTRUCTION AL

Planned Roadway Improvements

I-20/59 WB @ MP 87

CONSTRUCTION AL

Planned Roadway Improvements

I-20/59 EB @ MP 33.4 to MP 41

CONSTRUCTION AL

Planned Bridge Work/Inspections

I-20/59 EB/WB @ MP 27.29 to MP 33.49

OTHER AL

Welcome Center

I-20 WB @ MP 212.97 to MP 212.97

CONSTRUCTION AL

Planned Roadway Improvements

I-20/59 EB @ MP 55.37 to MP 62.37

Showing 18 of 67. View all on map →

06 Active weather alerts (1)

SEVERE THUNDERSTORM WATCH

Severe Thunderstorm Watch issued July 4 at 3:24PM CDT until July 4 at 7:00PM CDT by NWS Springfield MO

Dent, MO; Shannon, MO; Texas, MO

07 FAQ

How long does it take to drive I-20 end to end?

A passenger car can cover the 1,539 miles in 22-25 hours of driving time. Commercial drivers respecting hours-of-service rules typically need 3 to 4 days, with stops aligned to the Dallas, Birmingham, and Atlanta metros.

Is I-20 a toll road?

No. I-20 is toll-free across all six states. Atlanta's I-285 has optional Express Lanes that carry tolls but are not part of I-20 itself.

What major cities does I-20 connect?

I-20 directly serves Midland-Odessa, Abilene, Fort Worth, Dallas, Shreveport, Jackson, Birmingham, Atlanta, Augusta, and Columbia.

Does I-20 close in winter?

Rarely. The southern routing keeps it largely snow-free, but ice events in central Texas, the Birmingham metro, and the Atlanta area can shut down sections for 12-48 hours. The South is poorly equipped to plow ice, so wait it out rather than try to push through.

Where does I-20 begin and end?

I-20 begins at I-10 in Kent, Texas (about 100 miles east of El Paso) and ends at I-95 in Florence, South Carolina. It does not connect to the Atlantic Ocean directly. Coastal Charleston is reached via I-26 from Columbia.

I-20: The Sun Belt Connector

Severe truck congestion and HOV/HOT lane restrictions

Concurrent interstate, frequent incident-driven closures

Tornado and severe-storm corridor

Long, narrow Mississippi River crossing

Limited services and oil-patch truck congestion

Severe Thunderstorm Watch issued July 4 at 3:24PM CDT until July 4 at 7:00PM CDT by NWS Springfield MO

Interstate 20 Live Map