The ineffective flow areas were set and are OK. I did change it to pressure flow (didn't realize the energy only option had been chosen) which helped with the upstream WSEL but I'm still getting that dip and hydraulic jump downstream of the bridge. The WSEL is now:
22.91 at the bridge
18.24...
I'm modeling the 100-year storm in a river using HEC RAS but the water surface elevation immediately downstream of a bridge seems unrealistic. The model shows the bridge being overtopped by about 8 feet (WSEL = 28.21 ft). Just downstream of the bridge, the WSEL dips down almost 10 feet to...
