FLOOD10347

• County: Fremont
• Community: Fremont County
• Stream Name: Oak Creek, Coal Creek
• Basin: Arkansas
• Title: Hydrologic Analysis - Oak Creek & Coal Creek
• Date: 9/1/2000
• Prepared For: CWCB
• Prepared By: USACE - Albuquerque District
• Floodplain - Doc Type: Floodplain Report/Masterplan

. ID
10
ID
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IT
10
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OAK CREEK BAgIN FLORENCE, CO
500-YR, 24-HR RAINFALL
JUNE 2000--LISA A. DEBETTIGNIES

MULTI-BASIN MODEL - MODELED WITH SCS DIMENSIONLESS UNIT HYDROGRAPH

HYETOGRAPH IS SCS TYPE II
UNIT HYDROGRAPHS FROM KIRPICH Tc
Tc = 0.0078 * L^.77 * S^-.385 AND "TLAG"
LOSS RATES ARE SCS CURVE NUMBER
15 30JUNOO 0015 300
5

0.6*Tc

* DIAGRAM
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KK MOC-P MAIN OAK CREEK (UPPER WATERSHED JUST NORTH OF SILVER PARK CREEK)
KM COMPUTE RUNOFF HYDROGRAPH FOR SUBAREA MOC-P
BA 6.98
* TOTAL 500-YR 24-HR RAINFALL
PB 4.75
* RAINFALL PATTERN IS SCS TYPE II
IN 15
PC 0 .0020 .0050 .0080 .0110 .0140 .0170 .0200 .0230 .0260
PC .0290 .0320 .0350 .038 .0410 .0440 .0480 .0520 .0560 .0600
PC .0640 .0680 .0720 .0760 .0800 .0850 .0900 .0950 .1000 .1050
PC .1100 .1150 .1200 .1260 .1330 .1400 .1470 .1550 .1630 .1720
. PC .1810 .1910 .2030 .218-0 .2360 .2570 .2830 .3870 .6630 .7070
PC .7350 .7580 .7760 .7910 .8040 .8150 .8250 .8340 .8420 .8490
PC .8560 .8630 .8690 .8750 .8810 .8870 .8930 .8980 .9030 .9080
PC .9130 .9180 .9220 .9260 .9300 .9340 .9380 .9420 .9460 .9500
PC .9530 .9560 .9590 .9620 .9650 .9680 .9710 .9740 .9770 .9800
PC .9830 .9860 .9890 .9920 .9950 .9980 1 1 1 1
* SCS CURVE NUMBER
LS 0 77
* SCS DIMENSIONLESS UNIT HYDROGRAPH FROM KIRPICH METHOD Tc
UD 1.17
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KK MOC-O MAIN OAK CREEK (BEAR GULCH)
KM COMPUTE RUNOFF HYDROGRAPH FOR SUBAREA MOC-O
BA 4.52
PB 4.75
LS 0 77
UD 0.90
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KK CP-18 CONCENTRATION POINT 18
KM COMBINED THE HYDROGRAPH FOR SUBAREA MOC-O WITH THE HYDROGRAPH FOR MOC-P
HC 2
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KK RT18 ROUTING 18 (ROUTE CP-18 TO CP-17)
RS 1 STOR 0
* CROSS-SECTION MOC#10 FROM QUAD MAP AND FIELD NOTES
RC 0.03 0.03 0.03 18400 0.0801
. RX 1000 1150 1270 1283 1317 1330 1550 1750
RY 8560 8520 8493 8483 8483 8492 8520 8560
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