Relating to flood control measures for Texas Department of Transportation highway projects.

HB 3544 requires the Texas Department of Transportation (TxDOT) to coordinate with local flood control authorities during highway construction to minimize flooding impacts. It mandates TxDOT to add stormwater outfalls and other flood control features to highway projects and consider existing, proposed, and expected nearby roadways when designing these measures. The bill directly affects TxDOT's planning process for highway projects and aims to reduce flood risks for communities near new or upgraded roads. It takes effect September 1, 2025, if enacted.