If we flood, Austin is in for a hell of a surprise! We are about 750’ and Lake Travis is about .5 mile to our west. We live on a hilltop that is almost the highest point in the immediate neighborhood. There are higher points, but all runoff runs away from our house. Just looked a bit ago and we’ve had about 5.5 - 6” today.
Ok, hilltop is good. We’re high enough not to worry about most major river flooding but we catch it when it comes down the hill right into the back door. I tried to work the garden so it diverts some of the rain but we still have sweep the water when there’s a downpour. In recent years the water coming off the hills have washed away the roads so we’ve been blocked in.