PLATTE RIVER BASIN

06712000 CHERRY CREEK NEAR FRANKTOWN, CO

LOCATION.--Lat 39°21'21", long 104°45'46", in NE14 sec.15, T.8 S., R.66 W., Douglas County, Hydrologic Unit 10190003, on right bank 1.3 mi downstream from Castlewood Dam site, 1.5 mi upstream from Russellville Gulch, and 2.5 mi south of Franktown.

DRAINAGE AREA.--169 mi2.

PERIOD OF RECORD.--November 1939 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06712000

REVISED RECORDS.--WSP 1730: Drainage area. WDR CO-87-1: 1983-85 (P).

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 6,150 ft above NGVD of 1929, from topographic map. See WSP 1730 for history of changes prior to Oct. 1, 1953.

REMARKS.--Records fair except for estimated discharges, which are poor. Many small diversions upstream from station for irrigation of about 800 acres. Several measurements of specific conductance and water temperature were obtained and are published in the "Supplemental Water-Quality Data For Gaging Stations" section of this report.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Aug. 3, 1933, caused by Castlewood Dam failure, exceeded all other observed floods at this location.

Discharge, cubic feet per second 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAILY MEAN VALUES

DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
1	1.8	2.6	2.8	2.5	4.2	4.5	63	11	5.8	3.2	1.3	1.7
2	2.1	2.6	2.9	e2.7	4.5	4.2	90	10	6.9	3.5	1.3	1.8
3	2.0	3.1	3.1	e2.7	4.0	4.5	52	8.9	4.5	2.8	1.3	1.8
4	1.9	3.0	3.3	3.1	e3.4	4.2	36	8.6	4.0	1.9	1.5	1.5
5	1.9	2.7	3.0	3.4	4.0	5.1	25	8.4	8.0	1.7	1.7	1.5
6	1.9	2.7	2.7	3.9	3.5	4.0	19	7.5	6.3	1.7	1.5	1.4
7	1.9	2.7	2.8	3.5	e3.1	4.3	12	7.2	5.7	1.7	1.5	1.8
8	1.8	2.8	2.8	3.5	e2.9	4.5	11	7.0	5.2	1.6	1.9	1.7
9	1.8	2.7	e2.4	3.4	3.1	4.3	11	6.9	4.0	1.7	1.5	1.6
10	1.8	2.6	2.5	e3.2	e2.9	4.8	12	8.5	3.6	1.8	1.4	1.6
11	1.8	2.5	2.9	e2.9	3.2	5.0	11	7.0	4.4	1.7	1.7	1.6
12	1.8	2.6	2.9	3.1	3.6	3.6	9.8	5.9	3.9	1.8	1.6	1.5
13	1.8	2.7	2.7	3.5	4.6	3.6	8.8	4.8	3.1	1.6	1.3	1.5
14	1.8	3.1	2.7	4.1	6.0	3.4	7.2	4.5	2.9	1.6	1.3	1.7
15	1.8	3.2	2.8	3.7	6.3	3.3	9.0	4.6	2.4	1.7	1.3	1.4
16	1.8	3.1	3.2	3.8	5.2	3.2	11	7.4	1.8	1.5	1.3	1.3
17	1.8	2.9	3.2	2.9	5.1	3.5	4.1	4.9	24	1.3	1.1	1.5
18	1.9	3.0	3.3	e2.9	e4.5	10	5.3	4.0	25	1.3	1.2	1.4
19	1.9	3.1	3.5	e3.2	5.3	27	11	3.8	17	1.3	1.3	1.4
20	2.0	3.0	e2.8	3.6	4.6	29	11	4.0	9.7	1.4	1.1	1.4
21	2.0	2.9	2.6	e3.5	3.6	11	9.6	3.7	8.0	1.5	1.0	1.5
22	2.0	3.1	e2.3	3.4	4.0	9.1	8.0	3.3	5.3	1.4	1.0	1.4
23	2.1	3.3	e2.4	e3.3	3.6	11	9.4	2.8	4.6	1.5	1.1	1.4
24	2.3	3.2	e2.5	3.8	3.9	13	27	14	3.9	1.5	1.2	1.4
25	2.3	2.9	e2.5	3.9	e3.5	13	122	11	3.9	1.5	1.2	1.6
26	2.4	2.3	e2.5	3.9	3.7	22	138	5.2	3.8	1.9	1.1	1.4
27	2.7	2.7	e2.5	4.2	4.2	25	49	4.2	3.2	2.3	1.0	1.5
28	2.6	2.6	e2.5	4.1	4.6	17	21	3.4	3.0	1.7	1.0	1.5
29	2.8	2.8	e2.3	3.5	---	12	9.0	3.6	2.9	1.8	1.3	1.5
30	2.6	2.8	2.6	3.8	---	19	12	3.9	2.7	1.5	1.8	1.5
31	2.6	---	2.4	3.8	---	34	---	4.5	---	1.4	2.6	---
TOTAL	63.7	85.3	85.4	106.8	115.1	322.1	824.2	194.5	189.5	54.8	42.4	45.8
MEAN	2.05	2.84	2.75	3.45	4.11	10.4	27.5	6.27	6.32	1.77	1.37	1.53
MAX	2.8	3.3	3.5	4.2	6.3	34	138	14	25	3.5	2.6	1.8
MIN	1.8	2.3	2.3	2.5	2.9	3.2	4.1	2.8	1.8	1.3	1.0	1.3
AC-FT	126	169	169	212	228	639	1,630	386	376	109	84	91
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2003, BY WATER YEAR (WY)
MEAN	4.44	5.65	5.17	5.31	8.59	21.7	19.6	15.9	8.65	6.96	8.94	3.62
MAX	29.1	30.7	25.2	17.7	29.3	184	138	138	42.6	43.8	59.9	18.2
(WY)	(1985)	(1985)	(1985)	(1985)	(1948)	(1960)	(1984)	(1973)	(1983)	(1957)	(1945)	(1984)
MIN	0.97	1.32	1.41	1.57	1.99	2.36	1.70	1.43	1.12	0.80	0.76	0.78
(WY)	(1953)	(1955)	(1964)	(1951)	(1956)	(1972)	(1963)	(1963)	(1954)	(1981)	(1962)	(1950)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1940 - 2003
ANNUAL TOTAL	2,050.51	2,129.6
ANNUAL MEAN	5.62	5.83	9.55
HIGHEST ANNUAL MEAN			31.9 1984
LOWEST ANNUAL MEAN			2.89 1954
HIGHEST DAILY MEAN	476 Aug 27	138 Apr 26	1,400 May 6, 1973
LOWEST DAILY MEAN	0.81 Jul 17	1.0 Aug 21	0.20 Jul 13, 1946
ANNUAL SEVEN-DAY MINIMUM	0.83 Jul 14	1.1 Aug 21	0.29 Jul 10, 1946
MAXIMUM PEAK FLOW		350 Apr 25	a9,170 Aug 5, 1945
MAXIMUM PEAK STAGE		5.39 Apr 25	b4.91 Aug 5, 1945
ANNUAL RUNOFF (AC-FT)	4,070	4,220	6,920
10 PERCENT EXCEEDS	9.1	11	17
50 PERCENT EXCEEDS	2.6	3.0	4.5
90 PERCENT EXCEEDS	0.96	1.4	1.3

e Estimated. a Site and datum then in use, by float measurement. b Maximum gage height, 9.33 ft (revised), Aug 27, 2002, current site and datum.