I remember that bridge quite well. I lived about three miles east of that bridge from 1975 to 1982. It was simply posted as a narrow bridge until about 1990, and that was an understatement. The only way two vehicles could meet on the bridge was if they were both motorcycles (I think it was only 14 or 16 feet wide). When MoDOT started marking bridges for one-lane traffic for weight concerns, this bridge was included. The bridge is near the unincorporated village of Cora (population around 10 at last check) and is in an area prone to flooding. I'll see about getting pictures of it in the next week.