Olathe expanding flood prevention program after successes

If more than 3.6 inches of rain fell on Olathe, Kansas, in one hour, the city predicts 33 buildings and several roads along Mill Creek would flood. To be clear, that is a lot of rain; there’s only about a one percent chance it happens every year. To prevent that worst-case scenario the city is designing flood prevention measures for the creek this summer and will begin construction in 2021 after getting permits from a variety of agencies.