Imes Covered Bridge. The sign says it one of the Covered Bridges of Madison County. I just filled up with Diesel here in Saint Charles, IA. Muddy, wet, nasty truck stop. I've noticed they don't use a lot of pavement back here, and most of the truck stops are filthy, inside and out..Sort of surprising. Not counting the fill up when I left Coos Bay, the total for my fuel so far is $528! Maybe now that I'm going down hill, the mpg should bet better