High trestle trail Bridge is one of the most unique biking bridges in Iowa. It is a half a mile long bridge that stands 13 stories high over the Des Moines River Valley. The Bridge is on a 25 mile bike trail and is located between two small towns called Woodward and Madrid. It once was a bridge for a pacific railroad train, but is now a beautiful bike/walking path that attracts many people because of it's unique architecture and view. It also lights up at night too.