Please Post Your Answer to Worked Example 4.4

Group E:

By using 1 nos. 5×2.3m2 culvert.

Hw for Q50 is 2.9m,Froude number is 0.72 and outlet control.

Hw for Q100 is 3.82m, Froude number is 0.95 and inlet control.

group B answer

using box culvert
B=4.5m x D=2.00m

H2 Q2 H1 Q1
0 0.000 0 0.000
0.25 4.103 0.25 2.053
0.5 8.210 0.5 4.092
0.75 12.321 0.75 6.118
1 16.436 1 8.131
1.25 20.556 1.25 10.131
1.5 24.679 1.5 12.117
1.75 28.807 1.75 14.090
2 32.939 2 16.050
2.25 37.075 2.25 17.997
2.5 41.216 2.5 19.930
2.75 45.360 2.75 21.850
3 49.509 3 23.757
3.25 53.661 3.25 25.651
3.5 57.818 3.5 27.531