PERMFILE131108

• Permit No: C1981018
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Doc Name: SAE Sedcad Runs ‎(Revised TR-54)‎
• Section_Exhibit Name: Illustration 44 PART 1
• Media Type: D
• Archive: No

worksheet 2: Runoff curve number and runoff
Projetat SDH~4 AREA "B" ByDGA Date 7/1/93
Location "V DITCFI AROUND CELL AND POND Checked Date
Circle one: Present Developed
1. Runoff curve number (CN)
LJ

Soil name
and Cover description ~
CN J Area Product
of
hydrologic
group

(appendix A) (cover type, treatment, and
hydrologic condition;
percent impervious;
unconnected/connected impervious
area ratio) ~~
w
m
a
Fm, ~
~
`~'
~
'"„ ~
i
~'
oo
y
QJacres
Omi'-
^ X CN x area
N13YERSON
"D" - POOR COIIDITION
508 GROUAID ODVER
89
1.87
166.43

1/ Use only one CN source per line. Totals ~ 1.87 166.43
CN (weighted) ~ total product ~ 166.43 89
total area 1.87
2. Runoff
Frequency .............................. yr
Rainfall, P (24-hour) .................. to
Runoff, Q ..................... .... ... in
(Use P and CN with table 2-l,.fig..2-1,
ur eqs. 2-3 and 2-4.)

Use CN ~ fl9
Scorn O1 Storm A2 Storm p3
lOYR 25YR
1.4" 1.8"
0.5
42-4
U•'_' (°_IU-VI-TP,-55. Second Gd.. June I9RIi) I