Worst Houston-area roads: Segments of I-10 Katy Freeway and SH 99 Grand Parkway rank on state’s 100 most congested in 2024 [Video]

KATY, Texas — Two Katy-area roadways ranked among the 100 most congested roads statewide in the Texas A&M Transportation Institute’s annual report.

In a nutshell

Analysis of the TTI’s annual report shows that TxDOT projects have reduced traffic delays by 7% since 2019, even though the total number of miles traveled statewide has risen 7%, according to a Texas Department of Transportation Nov. 25 news release.

However, the data shows congestion on segments of I-10 and the Grand Parkway in the Katy area worsened between the 2023 and 2024 rankings.

The overview

The TTI measures congestion on over 2,100 road segments, or about 10,000 miles of Texas roads each year. The Texas Legislature directed the TTI to begin conducting the annual study in 2009 due to growing urban road congestion, Community Impact reported.

The study, which focuses on the state’s top 100 congested roadways, found that upgrades to key roads have saved commuters around $915 million in time …