Consider a trapezoidal channel with a bottom width of 4 m, side slopes of 3:1 (H:V), and a bottom slope of 0.002 that carries 50 cms. The channel has a Manning's roughness of 0.034
(a) Using the standard step method, determine the water depth 40 m upstream of a location with a depth of 2 m.
(b) Design an Excel spreadsheet to calculate the following reach steps.
All lengths and water depths must be accurate to 2 decimal places. Plot the water surface pro?le. Your spreadsheet will be uploaded to Moodle with the filename format of lastname_firstname_hw5_prob5.xls.