4.34 In the region just downstream of a sluice gate, the water may develop a reverse flow region as indicated in Fig. P4.34 and Video V10.11. The velocity profile is assumed to consist of two uniform regions, one with velocity V, 10 fps and the other with V₁ = 3 fps. Determine the net flowrate of water across the portion of the control surface at section (2) if the channel is 20 ft wide. (1) Sluice gate V₁=3 ft/s- SS FIGURE P4.34 (2) -Control surface 1.8 ft 1.2 ft V = 10 ft/s

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.