CTC 260 Hydrology Jayne Baran HOMEWORK SET 10
(8 points) Determing the 25 year peak by reworking example 5-2 (developed). Assume P, CN, Q and AmQ remain the same; however, make the following subarea changes:
|
Subarea |
Tc |
Tt |
|
5 |
No Change |
0.75 |
|
6 |
0.75 |
--- |
|
7 |
0.50 |
0.25 |
Print the developed hydrograph using Excel. Estimate the complete hydrograph by sketching in the missing data.
(2 points) Rework example 6-1 except change the peak outflow discharge from 180 to 270 cfs. Calculate the percent reduction required in storage volume.