HOMEWORK SET 10

 

CTC 260

Hydrology

Jayne Baran

 

 

 

 

 

 

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

 

Develop and graph the hydrograph (include as much data as you can from exhibit 5) using Excel.  Print the graph and finish the complete hydrograph by sketching it in with pencil. 

 

 

Rework example 6-1 except change the peak outflow discharge from 180 to 270 cfs.  Calculate the percent reduction required in storage volume.