CEEN 4362

Homework 5 (small project)

The Zuhair Creek Watershed in the figure below (figure 1) has the parameters listed in the

accompanying table.

Sub-

basin

A

B

C

D

E

F

G

Area Lag time

(mi²) (min)

17

240

19

180

9

|

12

10

11

15

190

SCS Method

Land use

Wooded

Residential%

ac

Cultivated

land with

conservation

treatment

Meadows

Meadows

Cultivated

land (with

conservation

treatment)

Cultivated

land

(without

conservation

treatment)

Hydrologic Standard Lag

soil group

(hr)

B

C

A

Snyder's method

A

A

A

4

3

2

3

Peak

Coefficient

0.6

do

0.6

0.5

0.6

Muskingum

Coefficient

X

0.2 5

к

(hr)

0.2 4

0.2

A 5-hr rainfall hyetograph in in/hr that occurred on January 30, 2023, is shown in figure 2 below.

Assume the rain fell uniformly on the watershed. Use the information given to determine the

predicted outflow at the watershed outlet using HEC-HMS. Assume no base flow. Use SCS method

for unit hydrograph (transform component) for the sub-basins A, B, and C. Use Snyder's method for

unit hydrograph (transform component) for Sub-basin D, E, F, and G. Use SCS method for Loss

component

window

for all Sub-basins. Submit Homework as MS word with screenshots of: 1) HEC-HMS

that shows the entire window including Basin model before starting the run. 2) HEC-HMS

window that shows the Global Summary Result. 3) The results in graphs for each subbasin, reach,

and Junction. 4) the project HEC-HMS file.

6

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