A canal transports a flow of 100 m3/s with a depth of 1.5m. This canal is made of concrete (Manning coefficient of 0.012) and has a slope of 0.02%. The cross-section can be found below.

A 3.0 m wide rectangular channel caries water to of 1.5 m. In order to measure the discharge, the width is reduced to 2.0 m and a hump of 0.3m height is provided in the bottom. Calculate the discharge if water surface in the contracted section drops by 0.15 m. Assume no losses.

A 5.0 m wide rectangular concrete canal with a bottom slope of So = 0.0016, conveys the flow discharge of Q= 19.0 m/s in the normal depth of y, 1.63 m. A sluice gate is designed in one section of this canal, if the water depth at downstream of gate is y2 =0.65 m, estimate the forces acting on the sluice gate. Sluice gate

A 6.0 m rectangular channel carries a of 30 m³/s at a depth of 2.5 m. the channel width that produces discharge Determine the critical depth.