Chances are it has happened to you.
You're on the way to work or school, or you're just driving along the Milwaukee River. Then, suddenly, you hear the familiar clang of warning bells and see those white and red gates lowering across traffic.
You're stuck at the drawbridge. And you might be where a while.
But have you ever wondered what — and who — is at work behind the scenes? What actually happens inside that little house above each of Milwaukee's drawbridges?