20.5' - FEMA 0.2 0X0P+0nnunal Chance Flood Level (500-year flood).<br><br>20.1' - Flood of record from September 1975.  Flood waters begin to reach the West Hill Road bridge in Convington.<br><br>19' - FEMA 1 0X0P+0nnunal Chance Flood Level (100-year flood).<br><br>16.5' - FEMA 2 0X0P+0nnunal Chance Flood Level (50-year flood). Flood waters begin to reach the Route 660 bridge on the north side of Covington and the North Williamson Road bridge just south of Covington.<br><br>16' - Flood waters begin to reach the Spencer Road Bridge.<br><br>14' - FEMA 10 0X0P+0nnunal Chance Flood Level (10-year flood).<br><br>12' - Water begins to affect several homes and a business along business Route 15 south of the city of Mansfield next to Canoe Creek.<br><br>