H.B. No. 286 mandates the Texas Water Development Board (the "Board") to conduct a comprehensive study and report on flooding risks and potential solutions in the upper Guadalupe River basin. The Board, in collaboration with the Upper Guadalupe River Authority, Kerr County, and the City of Kerrville, will assess the risk to life and property from flooding, evaluate possible mitigation strategies, and propose up to eight projects aimed at reducing these risks. The study will involve collecting and analyzing existing data, updating it with recent weather events, and developing hydraulic models for local waterways.

The bill outlines specific requirements for the Board's assessment, including identifying projects that enhance flood resilience, conducting community meetings for public input, and determining the costs and benefits of proposed projects. At least half of the proposed projects must originate from local entities. The Board is required to submit a report to the legislature by January 1, 2029, detailing the findings of the study and the recommended projects. The Act will expire on January 1, 2030, and will take effect 91 days after the legislative session concludes.