Study on Flood Control Impact Assessment of Highway Cross River Bridge Engineering
A study was conducted using a certain bridge as an example to calculate its design flow rate,design water level,backwater height,and scouring depth.The calculation results show that the design flow,design water level,maximum damming height,damming influence distance,and total scouring depth of the bridge are 680 m3/s,34.3 m,1.4 m,151 m,and 2.35 m,respectively,which meet the flood control standards in case of floods.The above results indicate that bridges have a rela-tively small impact on the flood discharge trend and stability of the river regime.
cross river bridgeflood control impactflood control standardswater level calcula-tionscour analysis