During a large flood, the water level in the channel is given in the following figure. Manning's n is 0.015 for the main channel and 0.035 for the flood banks. The bed slope S, is 0.001. Estimate the discharge for a maximum flood level of 4 m.

A pluvia drainage channel, in a city where large sudden rains occur, has the shape shown in the figure. It is made of unfinished concrete and has a 0.5 percent slope. The sectionhigher allows large volumes to be transported through the channel. Determine the normal discharge for depths of 0.5 m and 2.5 m

a rectangular section 3 meters wide carries a flow of 5.60 m3/sec. calculate the critical slop if n = 0.010

2. You're designing a stilling basin and you need to know the minimum length of that basin and also how much energy loss will be achieved before flow is released into the downstream channel. Given the basin width is 10-feet, the flow rate is 240 CFS, the upstream froude number is found from hydraulic modeling to be 4.0. Solve the following: • Minimum length of the stilling basin. • Energy loss within the stilling basin (Calculate both energy loss in feet and in tons). • The depth of water being released outside of the stilling basin. • The Froude Number being released from the Stilling Basin. • Look at USBR Design of Small Dams and Write a paragraph (4-5 sentences) of the recommended stilling basin you would propose for the hydraulic scenario.