Every Major Texas Highway

You will likely drive one or more of these Texas interstates in your commute or other regular travels.

Houston, Dallas, Fort Worth, El Paso, Austin, San Antonio, and Laredo experience significant interstate traffic, particularly from commercial motor vehicles transporting goods.

Texas Interstate Highways

The 12 major interstate highways, according to the Texas official travel map, include:

1. I-2 running from Harlingen to Peñitas
2. I-10 stretching from Louisiana to New Mexico
3. I-14, beginning in Copperas Cove to Belton
4. I-20 from Louisiana to just west of Kent before joining with I-10
5. I-27 connecting Lubbock to Amarillo
6. I-30 beginning in Texarkana on the Arkansas border and ending in Fort Worth
7. I-35, extending from Laredo to Hillsboro, then dividing into I-35 East, which passes through Dallas into Denton, and I-35 West stretching through Fort Worth and terminating in Denton. I-35 reconvenes after the east and west split, continuing into Oklahoma.
8. I-37 starting in Corpus Christi and moving north to San Antonio
9. I-40 connecting New Mexico with Oklahoma through the upper panhandle of Texas
10. I-44 picking up in Wichita Falls, extending into Oklahoma
11. I-45 extending from the coast in Galveston to Dallas
12. I-69 running from Rosenburg to Cleveland

Industry growth and the influx of residents into Texas also create critical transportation challenges that translate into higher accident rates. Texas is only second in annual vehicle miles traveled annually to California. Texas recognizes interstate highways I-10, I-20, I-30, and I-40 as critical economic components, connecting the eastern, western, and southern US economic centers.

13 Most Congested and Bottleneck Segments of Texas Interstates

According to the American Transportation Research Institute (ATRI), there are 13 truck bottleneck segments that impact driving on Texas interstates.

Nine of these bottlenecks are in Houston and include the fourth-highest congested area in the US. While not all locations are on major interstates, their impact on Texas traffic is noteworthy.

The top 13 most congested areas include:

1. I-45 at I-69/US 59 in Houston
2. I-10 at I-45 in Houston
3. I-45 at I-30 in Dallas
4. I-45 at I-610N in Houston
5. I-10 at I-610W in Houston
6. I-610 at US 290 in Houston
7. I-35 in Austin
8. I-10 at I-610E in Houston
9. US 75 at I-635 in Dallas
10. I-35W at I-30 in Fort Worth
11. I-10 at I-69/US 59 in Houston
12. I-610 at I-69/US 59W in Houston
13. I-45 at Sam Houston Tollway N. in Houston