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Construction on Dam 101, an almost 1-mile long and four-story flood mitigation project near Round Rock, will wrap up by the end of the year.
The dam sits outside city limits—north of SH 45 and south of RM 620—and will bring flood relief to homes near Lake Creek.
Diving deeper
The dam will serve an area historically prone to flooding. Nearby neighborhood Greater Round Rock West flooded from Lake Creek in 2010 and 2015.
Dam 101 will reduce flood risk and contain runoff from heavy rain for more than five miles of Lake Creek.
Some background
The Upper Brushy Creek Water Control and Improvement District found that Dam 101 was a priority project after conducting a watershed study in 2010.
In 2020, voters approved $85 million in bonds to fund flood safety projects in the region, including Dam 101. Other projects include a smaller dam, which is less than a mile from Dam 101.
The Upper Brushy Creek WCID, city of Round Rock, Williamson County and the Texas Water Development Board all collaborated while planning the project.
What's next
Once the dam is complete, the Federal Emergency Management Agency will determine if nearby homeowner insurance rates can be adjusted based on changes in the floodplain.
