PLATTE RIVER BASIN

06713500 CHERRY CREEK AT DENVER, CO

LOCATION.--Lat 39°44'33", long 104°59'58", in SE14 sec.33, T.3 S., R.68 W., Denver County, Hydrologic Unit 10190003, on left bank 100 ft downstream from Champa Street Bridge in Denver, and 1.1 mi upstream from mouth.

DRAINAGE AREA.--409 mi2.

PERIOD OF RECORD.--August 1942 to September 1969, February 1980 to September 1983, and annual maximums 1984, 1985. April 1986 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06713500

REVISED RECORDS.--WSP 1710: Drainage area. WDR CO-82-1: 1982 (M).

GAGE.--Water-stage recorder. Elevation of gage is 5,180 ft above NGVD of 1929, from topographic map. See WSP 1730 for history of changes prior to July 16, 1951. Prior to Mar. 1, 1995, at site 0.6 mi downstream, on downstream side of Wazee Street Bridge, at different datum. Mar. 1, 1995 to May 11, 1998, at site 0.4 mi downstream, 300 ft upstream from Market Street Bridge, at different datum.

REMARKS.--Records good except for estimated daily discharges, which are poor. Several diversions upstream from station for irrigation of about 1,900 acres. Floodflow regulated by Cherry Creek Reservoir 11 mi upstream, capacity, 95,960 acre-ft. Water-quality data has been collected at this site as part of the South Platte River Basin National Water-Quality Assessment Program and is available at http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06713500. 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 July 26, 1885, reached a discharge of 20,000 ft3/s, by float measurement. Flood of May 19 and 20, 1864, reached a somewhat higher stage. Flood of Aug. 3, 1933, reached a discharge of about 15,000 ft3/s, as determined by rise of South Platte River at Denver.

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	43	8.0	5.2	7.3	7.2	7.2	107	168	41	40	18	70
2	67	7.2	5.7	8.2	9.0	6.6	103	166	22	42	18	44
3	25	7.6	7.7	6.9	20	6.9	101	166	19	41	27	49
4	22	6.8	7.4	6.8	10	6.9	115	165	22	38	24	20
5	15	7.2	6.2	7.0	9.0	7.8	100	165	44	38	18	19
6	14	7.7	5.7	9.0	8.1	7.6	128	164	45	37	17	19
7	13	7.3	5.6	7.6	8.3	6.7	102	151	68	32	17	29
8	9.9	7.7	5.8	7.4	8.0	6.2	94	81	20	17	137	20
9	e8.8	6.8	6.1	7.2	7.3	6.1	75	103	24	15	58	32
10	e8.2	6.2	6.0	7.1	8.2	6.6	77	253	23	14	19	32
11	e8.3	6.2	5.8	7.1	7.3	6.6	72	134	19	14	24	36
12	e8.0	6.2	5.8	7.0	7.0	6.4	49	59	19	13	25	38
13	e8.2	6.1	5.6	7.3	7.3	6.4	45	45	19	13	18	38
14	e8.1	6.3	5.7	7.7	7.2	6.5	41	28	18	12	17	38
15	e8.0	6.5	5.6	7.3	8.4	6.2	43	43	17	12	17	40
16	e8.3	6.1	e6.1	6.9	7.1	6.1	57	45	18	11	17	39
17	e8.3	5.8	6.1	7.0	5.9	48	39	40	79	11	16	36
18	7.8	5.8	6.5	6.6	5.2	53	37	42	196	17	34	37
19	7.2	5.6	6.1	6.6	5.6	41	104	43	57	e351	15	e34
20	7.2	6.4	6.3	6.8	6.5	89	42	40	54	e35	14	e41
21	6.8	6.5	6.6	7.5	7.3	129	45	40	40	e25	14	42
22	6.5	6.2	5.9	7.0	7.6	118	43	37	37	e18	14	43
23	6.8	5.8	6.2	7.5	8.8	129	179	25	38	15	13	25
24	6.6	7.2	6.5	7.6	7.7	62	259	24	38	15	12	33
25	6.8	8.2	6.0	7.6	7.3	111	68	24	38	16	12	33
26	6.5	6.8	6.9	7.1	12	158	35	21	37	53	11	31
27	11	5.9	6.8	7.2	9.6	141	31	20	38	59	11	29
28	7.4	5.8	6.2	7.0	8.3	111	74	20	42	22	11	29
29	36	5.5	6.4	7.3	---	e105	168	19	45	20	17	30
30	19	5.4	6.8	7.6	---	115	172	19	42	18	284	29
31	9.2	---	6.8	7.5	---	e110	---	21	---	17	150	---
TOTAL	427.9	196.8	192.1	225.7	231.2	1,626.8	2,605	2,371	1,219	1,081	1,099	1,035
MEAN	13.8	6.56	6.20	7.28	8.26	52.5	86.8	76.5	40.6	34.9	35.5	34.5
MAX	67	8.2	7.7	9.0	20	158	259	253	196	351	284	70
MIN	6.5	5.4	5.2	6.6	5.2	6.1	31	19	17	11	11	19
AC-FT	849	390	381	448	459	3,230	5,170	4,700	2,420	2,140	2,180	2,050
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1942 - 2003, BY WATER YEAR (WY)
MEAN	15.3	13.3	11.4	11.4	16.4	26.2	32.3	41.2	31.6	27.2	38.8	18.7
MAX	37.2	47.1	54.4	37.0	73.8	179	119	156	118	161	236	64.9
(WY)	(1998)	(1998)	(1988)	(2000)	(1948)	(1948)	(1983)	(1999)	(1944)	(1983)	(1945)	(1965)
MIN	3.66	3.61	3.39	3.17	4.18	3.25	3.28	6.10	3.17	3.74	4.05	4.03
(WY)	(1949)	(1955)	(1956)	(1956)	(1952)	(1955)	(1955)	(1966)	(1946)	(1948)	(1948)	(1948)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1942 - 2003
ANNUAL TOTAL	6,615.5	12,310.5
ANNUAL MEAN	18.1	33.7	23.7
HIGHEST ANNUAL MEAN			70.7 1983
LOWEST ANNUAL MEAN			6.00 1954
HIGHEST DAILY MEAN	169 May 24	351 Jul 19	1,350 Aug 8, 1945
LOWEST DAILY MEAN	5.2 Dec 1	5.2 Dec 1	a0.40 Jun 16, 1948
ANNUAL SEVEN-DAY MINIMUM	5.8 Nov 26	5.8 Nov 26	0.93 Jun 14, 1948
MAXIMUM PEAK FLOW		2,220 Jul 19	b3,230 Jul 8, 2001
MAXIMUM PEAK STAGE		d8.57 Jul 19	c9.32 Jul 8, 2001
ANNUAL RUNOFF (AC-FT)	13,120	24,420	17,190
10 PERCENT EXCEEDS	30	100	47
50 PERCENT EXCEEDS	14	16	11
90 PERCENT EXCEEDS	6.4	6.2	4.5

e Estimated. a Also occurred Jun 17-18, 1948. b From rating curve extended above 1,000 ft3/s. c Maximum gage height, 11.98 ft, Jun 28, 1997, site and datum then in use. d From floodmark.