FLOOD06449

• County: Delta
• County: Montrose
• Community: Collbran, Cedaredge, Paonia
• Stream Name: Buzzard, Plateau, Grove Creeks
• Basin: Gunnison
• Title: Hydrology Report Unincorporated Areas of Delta and Montrose Counties
• Date: 4/1/1979
• Prepared For: FIA
• Prepared By: Meuer Serafini & Meuer, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

I
I
I
I
I
I
I
I
II
I
I
I
I
I
I
I
I
I
I

TABLE 5: CALCULATION OF OVERALL SKEW OOEFFICIENTS
RAINFLOOD EVENTS

R: Regional Skew
G: Generalized Skew

RFGION I
Best Other Years
Gage It Skew Skew Record
960 R:-.l G:-.3 9
965 R:-.l G:-.3 36 Regional skew selected as fitting
975 R:-.l G:-.3 33 most flow-frequency data plots best.
976 R:-.l G:-.3 9
1005 G:-.3 R:-.l 7
1050 R:-.l G:-.3 33
1306 R:-.l G:-.3 9 Straight average:
1312 G:-.3 R:-.l 12 (reg. skew) = -.17
1320 Either:-.3 -.3 9
1325 Either:-.3 -.3 36
1329 G:-.3 R:-.l 13 Weighted average (yrs. record):
1345 Either:-.3 -.3 29 (reg. skew) = -.19 = -.2
1430 Either:-.3 -.3 34
1435 Either: -.3 -.3 35
1520 G:-.3 R:-.l 31
RFGION II
Best Other Years
Gage It Skew Skew Record
1450 R:-.3 G:-.2 14
1460 G:-.2 R:-.3 16 Generalized skew selected as fitting
1464 G:-. 2 R:-.3 15 most flow-frequency data plots best.
1465 R:-.3 G:-.2 16
1650 G:-.1 R:-.2 25
1681 G:-.1 R:-.2 19
1720 R:-.2 G:-.l 18 Straight average:
1725 G:-.2 R:-.l 36 (gen. skew) = -.17
1745 G:-.2 R:-.3 10
1750 G:-.1 R:-.2 12 Weighted average (yrs. record):
1755 R:- .1 G:-.2 39 (gen. skew) = -.17 = -.2
1775 R:+.2 G:-.2 23

-30-