A concrete-lined, rectangular channel is to be constructed to carry a discharge of 500 ft³/s. Design the channel assuming that the following values are fixed based on the design conditions: Bed slope = 0.002 n=0.015 ⚫ ⚫ b/y ratio = 2.0 (i.e., the width, b, is equal to 2y)

Refer to Figure 7.24. The following data were collected during the field permeability measurement of a confined aquifer using a pumping test. Determine the hydraulic conductivity of the permeable layer. Use Eq. (7.49). Thickness of the aquifer, H = 4.5 m Piezometric level and radial distance of the first observation well: h1 = 2.9 m; r1 = 17.8 m Piezometric level and radial distance of the second observation well: h2 = 1.8 m; r2 = 8.1 m Rate of discharge from pumping, q = 0.5 m3/min