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August 1, 2025

Interview: Recent Austin area flash flooding focused attention on the Highland Lakes and dam system. Here’s how it works and why we have it in the first place.

By: Jennifer Stayton

After deadly flash flooding in the Hill Country and Austin area over the July 4, 2025, holiday weekend, people were warned to stay off the Highland Lakes, and the Lower Colorado River Authority had to open some floodgates.  This is often what happens in the aftermath of intense rains and flooding. But what is actually going on when that happens? What are the Highland Lakes, and how do these dams work? KUT’s Jennifer Stayton turned to KUT’s Energy and Environment reporter Mose Buchele for this dam explainer.