Bitting School Road

The project was in FEMA Flood Zone A and the roadway flooded frequently at the location of the culvert after moderate rainfall, making the crossing impassible to vehicular traffic. During design, in anticipation of the County approving and implementing NOAA Atlas 14 data (which resulting in higher rainfall intensities), American Structurepoint selected an interim 100-year criteria. The existing culvert was adjacent to Wilbarger Creek and when the creek over topped its banks, it combined flow at the culvert. To perform hydrologic analysis, an HEC-HMS model was created and included the five watershed areas and reach lengths that outfall into Wilbarger Creek.