The Tom Miller Dam in Austin, Texas spans the Colorado River generating hydroelectric power for the city. It’s 100 feet tall and just under 1600 feet long, with 9 floodgates. It’s the third dam on this site. The original dam gave way during torrential rains late in the morning of 7 April 1900, killing several people, including two children. The second failed with no loss of life. So far, so good with this third structure.