The Wabash Bridge carries a single track railroad from St. Louis County to the city of St. Charles. It is positioned next to the Discovery Bridge. It is used by the freight trains of Norfolk Southern Railway.
Wikipedia https://en.wikipedia.org/wiki/Wabash_Bridge_(St._Charles,_Missouri)
Address MO-370 E, St. Charles 63045, United States
Coordinates 38°47'50.982" N -90°28'2.419" E