FLOOD10330

• County: Mesa
• Stream Name: Colorado River, Big Salt Wash, Little Salt Wash
• Basin: Colorado Mainstem
• Title: Hydrology Report - Flood Insurance Studies in Mesa County, Colorado
• Date: 5/1/1989
• Prepared For: FEMA
• Prepared By: J. F. Sato & Associates, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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* FLCOO FLOW FR~GU~NCY ANALYSIS ·
* VERSION DATE ~~3 9, 1982 *
* AFTER SULLET IN 178, SEPT 1981 *

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******...**+**w*********+***....*

Q**TITLE CARO<S)** ~
TT STATION~- COLC RIVE~ - STAT~ LINE
TT PERIOD OF RECORD IS 1951-84
TT PEAKS FOR 1934-50 ESTIMATED
TT NEW ESTIMATES WITH PLATEAU CR ADDEO
TT BY ADDING CAMEO TO ONE-DAY CONC., GUNNISON RIVER
O**JOB CARD<S)**
IPPC ISKFX IPROUT
Jl 2 1 52
O**STATION IDENTIFICATION**
10 1635 COLO RIVER NR STATELINE, 1934-84

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193 '/- B 'I

IFMT
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IUNIT
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IWYR
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ISMRY
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IPNCH
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IREG
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-

**SYSTEHATIC EVENTS**
51 EVENTS TO BE ANALYZED
O**ENO OF INPUT DATA**
ED +++++++++++++++++++++++++++++++++++++~++++++++++++++++++++++
+++++++~++++++++++++++++++++++++++++++++++++++++++++++++++++++++

-SKEW WEIGHTING -

-----------.----------------------------------------------------

BASED ON 51 EVENTS, MEAN-SQUARE ERROR OF STATION SKEW :-99.000
DEFAULT OR INPUT MEAN-SQUARE ERROR OF GENERALIZED SKEW: 0.302

----------------------------------------------------------------

PRELIMINARY RESULTS
-FREQUENCY CURVE- 1635

COLO RIVER NR STATELINE, 1934-84

****************************************************************
*........FLOW,CFS........* *...CONFIDENCE LIMITS...*
* EXPECTED * EXCEEOANCE * *
* COMPUTED PROBABILITY * PROBABILITY * 0.05 LIMIT 0.95 LI"IT *

*------------------------*-------------*---------------~-------*

*

76300.
72100.
68400.
64100.
59200.
51200 .
43800.
30300.
19000.
14300.
11100.
6490.

78500.
73900.
69900.
, 65300.
60000.
51700.
44000.
3030 o.
18800.
14000.
10700.
5950.

0.002
0.005
0.010
0.020,
0.040
0.100
0.200
0.500
0.800
0.900
0.950
0.990

96400.
90200.
8~900.
78700.
71800 .
6090 0 .
51000.
3~20 o.
21600.
16600.'
13200.
8200.

'63900. *
60100. *
57900. *
5~700. *
50800. *
4~600. *
3B500. *
26900. *
16400. *
11900. *
8860. *
4720. *

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*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*

*

fREQUENCY CURVE STATISTICS

STATISTICS BASED ON

*

*

*--------------------------------*-----------------------------.

*

MEAN LOGARITHM
STANDARD DEVIATION
COMPUTED SKEW
GENERALIZED SKEW
ADOPTED SKEW

14.14517
0.2213
-0.7826
-99.0000
-o.aoo,o

HI STORIC EVENT S
HIGH OUTLIERS
LOW OUTLIERS
ZERO OR HISSING
SYSTEMATIC EVENTS

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51

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