Why do street drains flood every time it rains?
Build up from street debris or leaf fall accumulates at storm grates or in the winter may be blocked by ice and snow. If you want to help, you can use a shovel or rake to clear off the top of the grate. If this does not correct the problem, notify the Street Traffic Division at (406) 657-8250. Also, it is not cost effective to build storm drain pipes large enough to handle every storm. Local streets are designed to be temporarily covered by water during heavy thunderstorms.
