CWR 4306 – Urban Stormwater Systems Design Fall 2011 Name____________________ Homework Assignment 5 (Due: Friday, October 14) Please hand in this homework pamphlet as a cover sheet with your answers (everything will be returned once graded). Be sure to list all assumptions and show all your work. Credit will only be assigned if it is clear how each problem was solved. 1.Use Excel or another appropriate spreadsheet application to construct a synthetic unit hydrograph using the NRCS (SCS) method for a drainage basin with an area of 250 acres. The time of concentration has been estimated as 0.5 hours. Assume that the time to peak tpcan be estimated as Lpttt+∆=2Note: In your submission be sure to show both the tabular values and a plot of the
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