FLOOD06389

• County: Statewide
• Community: State of Colorado
• Basin: Statewide
• Title: Urban Storm Runoff Inlet Hydrograph Study - Volume 4
• Date: 5/1/1975
• Prepared By: Cheng-lung Chen
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

Table 13. Continued.
Location Date Rain
City, State M/D/Y Gage
No.
7/19/73 P.l
" P.2
" P.3
" P.4
" P.5
" P.6
8/16/73 P.I
" P.2
" P.3
" P-4
" P-5
" P-6
9/ 1/73 P.1
" P.2
" P.3
" P-4
" P.5
" P.6
10/ 8/73 P.1
" P.2
" P.3
" P-4
" P.5
" P.6
0.8

0.7
0.6
0.5 .
.!t 0.4
.II
f 0.3
.II
0.2
0.1
0
0

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td a b C a/bc
min. min. in./hr.
107 119.69 43.59 !.l31 1.68
93 67.03 27.11 1.054 2.07
145 62.39 19.10 1.027 3.02
90 88.15 38.28 1.105 1.57
89 57.12 23.36 1.014 2.34
115 93.20 37.58 !.l01 1.72

b/td r

0.407 0.243
0.291 0
0.132 0.216
0.425 0.209
0.262 0.157
0.327 0.281

99 29.02 11.05 1.003 2.61 0.112 0.378
73 27.57 3.01 1.019 8.98 0.041 0.096
20 31.17 3.24 1.026 9.32 0.162 0.735
776 9.98 6.29 0.769 2.43 0.008 0.025
468 30.21 27.50 0.962 1.25 0.059 0.126
479 48.70 44.37 1.032 0.97 0.093 0.046
421 36.09 28.79 0.966 1.41 0.068 0.029
333 80.14 57.97 1.125 0.83 0.174 0.606
588 ]05.51 155.00 1.202 0.25 0.264 0.564
637 107.10 167.50 !.l82 0.25 0.263 0.524
567 28.47 63.12 1.034 0.39 0.111 0.626
397 806.84 260.00 1.457 0.24 0.655 0.903

Ilqo. 12 ond 13
with .. 54.62
b . 40.55
c.1.156
r . 0.322

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20

40

50

..

30

T_, mia.

Figure 17. Typical hyetograpb occurred on May 25.26, 1973, at gage L-5 in Layton, Utah, and its best.fitted
counterpart.

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