ARKANSAS RIVER BASIN

07103990 COTTONWOOD CREEK AT MOUTH AT PIKEVIEW, CO

LOCATION.--Lat 38°55'41", long 104°48'35", in SW14SW14 sec.8, T.13 S., R.67 W., El Paso County, Hydrologic Unit 11020003, on left bank 20 ft upstream from Vincent Drive bridge, 0.3 mi south of Woodmen Road, 0.3 mi upstream from mouth, and 1.2 mi northeast of Pikeview.

DRAINAGE AREA.--18.7 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--December 1985 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07103990

GAGE.--Water-stage recorder with satellite telemetry, crest-stage gage, and concrete control. Elevation of gage is 6,265 ft above NGVD of 1929, from topographic map.

REMARKS.--Records fair except for estimated daily discharges, which are poor. Natural flow of stream affected by erosion-control and livestock-watering reservoirs and ground-water withdrawals.

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	6.8	3.7	5.2	e3.5	e3.0	e4.0	4.9	3.2	16	3.0	3.1	7.8
2	9.9	10	4.9	e3.0	e3.5	e5.0	4.6	3.3	2.7	2.8	4.1	13
3	4.6	4.6	5.9	e3.0	e3.5	e3.0	3.8	2.9	2.6	2.7	8.5	18
4	4.4	3.3	5.3	e4.0	e3.0	3.5	4.1	4.1	15	2.5	9.9	4.1
5	3.9	3.4	5.2	e4.0	e3.0	e3.0	11	2.2	21	2.7	3.0	3.7
6	4.0	e3.0	e5.0	e5.0	4.0	e3.0	8.4	2.8	3.0	3.4	3.5	12
7	3.9	e3.0	e4.5	e5.0	3.4	e2.5	3.0	2.6	8.3	2.4	3.9	12
8	4.1	e3.0	e4.0	e5.5	e3.0	e5.5	3.5	2.6	4.2	3.2	3.2	e6.0
9	4.4	e3.0	e4.0	6.1	e3.0	2.4	3.1	3.1	6.3	2.2	7.3	e5.0
10	3.8	e4.0	e3.5	4.9	e3.0	3.6	3.2	7.1	3.7	2.8	e4.0	4.0
11	e3.8	e4.0	e3.0	e4.0	e3.0	3.9	3.3	2.8	4.3	2.6	3.7	4.3
12	3.6	e4.0	e3.0	4.5	e4.0	4.1	2.9	2.4	8.6	3.7	e4.0	4.8
13	4.1	e3.0	e3.5	e5.0	e5.0	4.3	3.3	2.4	6.9	3.0	e3.0	7.7
14	3.8	e3.0	e4.0	e5.0	4.7	5.3	3.0	e2.0	5.3	2.9	e3.0	7.3
15	3.1	e3.0	4.5	e5.0	5.7	4.5	4.3	4.9	5.7	3.0	e2.5	7.1
16	4.4	e3.0	3.5	e5.0	4.5	4.4	3.6	3.4	5.9	5.8	e2.5	5.2
17	4.9	e3.0	4.7	e4.0	4.7	9.7	3.0	2.5	53	2.4	e2.5	4.0
18	3.3	e3.0	4.9	e4.0	5.3	15	e3.5	2.4	7.9	2.2	4.6	4.2
19	3.2	e3.0	e5.0	e4.0	13	8.9	4.6	2.5	33	13	e4.0	4.6
20	2.8	e3.0	e4.5	3.7	6.5	32	4.2	2.3	10	3.9	e3.0	3.4
21	2.6	e4.0	e4.0	3.9	4.1	14	3.4	2.0	6.5	2.7	e3.0	3.1
22	3.6	e4.0	e4.0	3.7	4.6	12	15	3.5	6.0	4.0	e3.0	3.8
23	3.7	e4.0	e4.0	e6.0	5.3	11	21	8.0	5.7	4.4	e3.0	3.4
24	5.3	e4.0	e4.0	5.0	e4.5	22	29	2.3	5.3	3.3	5.0	3.4
25	4.2	e5.0	e4.0	6.1	e4.0	12	3.5	3.5	6.9	4.2	4.9	4.3
26	15	e5.0	e4.0	5.6	e4.0	7.1	3.1	4.6	15	5.2	5.8	3.4
27	12	e5.0	e4.5	4.3	e4.0	6.2	3.2	2.8	2.5	13	16	3.7
28	3.0	e5.0	e4.5	5.5	e4.0	5.2	3.9	2.5	3.0	30	4.4	3.8
29	e3.0	4.7	e4.5	e4.0	---	5.3	3.4	6.7	3.2	4.2	30	4.6
30	4.7	4.1	e4.5	e3.5	---	5.4	2.5	3.4	3.3	3.3	36	3.7
31	3.8	---	e4.0	e3.0	---	5.8	---	3.8	---	2.8	53	---
TOTAL	147.7	117.8	134.1	138.8	123.3	233.6	173.3	104.6	280.8	147.3	247.4	175.4
MEAN	4.76	3.93	4.33	4.48	4.40	7.54	5.78	3.37	9.36	4.75	7.98	5.85
MAX	15	10	5.9	6.1	13	32	29	8.0	53	30	53	18
MIN	2.6	3.0	3.0	3.0	3.0	2.4	2.5	2.0	2.5	2.2	2.5	3.1
AC-FT	293	234	266	275	245	463	344	207	557	292	491	348
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 - 2003, BY WATER YEAR (WY)
MEAN	5.75	5.14	4.49	4.36	4.56	5.58	6.84	9.25	9.64	9.65	9.32	6.43
MAX	9.59	9.18	7.90	7.60	7.56	11.1	33.3	40.7	26.4	26.2	27.7	13.9
(WY)	(1995)	(1998)	(1998)	(2000)	(2000)	(1992)	(1999)	(1999)	(1995)	(2001)	(1999)	(1999)
MIN	1.93	2.90	1.92	2.30	2.28	2.57	3.31	2.71	3.05	2.34	3.93	2.67
(WY)	(1987)	(1987)	(1992)	(1987)	(1990)	(1999)	(1989)	(1986)	(1990)	(1992)	(2002)	(1986)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1986 - 2003
ANNUAL TOTAL	1,853.8	2,024.1
ANNUAL MEAN	5.08	5.55	6.91
HIGHEST ANNUAL MEAN			15.7 1999
LOWEST ANNUAL MEAN			4.01 1989
HIGHEST DAILY MEAN	140 Jul 5	53 Jun 17	e500 Apr 30, 1999
LOWEST DAILY MEAN	2.3 Jun 19	2.0 May 14	a0.01 Jul 10, 1989
ANNUAL SEVEN-DAY MINIMUM	2.6 Jun 17	2.7 May 16	0.12 Jul 5, 1989
MAXIMUM PEAK FLOW		b1,440 Jun 17	c,d2,710 Jul 9, 2001
MAXIMUM PEAK STAGE		7.87 Jun 17	d,f9.53 Jul 9, 2001
ANNUAL RUNOFF (AC-FT)	3,680	4,010	5,000
10 PERCENT EXCEEDS	5.4	9.2	10
50 PERCENT EXCEEDS	4.0	4.0	4.7
90 PERCENT EXCEEDS	3.0	2.8	2.5

e Estimated. a Also occurred Jul 11, 1989. b From rating curve extended above 213 ft3/s, on basis of critical-depth measurement of peak flow at gage height 9.02 ft. c From rating curve extended above 900 ft3/s, on basis of critical-depth measurement of peak flow at gage height 9.02 ft. d Also occurred Jul 13, 2001. f From floodmarks.