5 Most Congested Highways in America

In this article, we will take a look at the top 5 most congested highways in America. If you wish to see our detailed analysis, you can go to 20 Most Congested Highways in America.

5. Houston, TX: I-45 at I-69/US 59

Peak Average Speed: 21.7 Miles Per Hour

Non-peak Average Speed: 35.8 Miles Per Hour

In Houston, I-45 is a major highway that goes through the city and ranks as one of the 20 most congested highways in America. The average speed during peak hours was recorded at 21.7 miles per hour in 2022. This speed decreased by 11% from 2021 to 2022. Interstate 45 (I-45) at I-69/US 59 has heavy congestion.