PLATTE RIVER BASIN

06711565 SOUTH PLATTE RIVER AT ENGLEWOOD, CO

LOCATION.--Lat 39°39'54", long 105°00'13", in NW14NE14 sec.33, T.4 S., R.68 W., Arapahoe County, Hydrologic Unit 10190002, on right bank, 0.3 mi downstream from Dartmouth Ave bridge at Englewood, and 1.4 mi downstream from Bear Creek.

DRAINAGE AREA.--3,387 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--February 1983 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06711565.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,250 ft above NGVD of 1929, from topographic map.

REMARKS.--No estimated daily discharges. Records good. Natural flow of stream affected by transmountain diversions, storage and flood control reservoirs, power developments, diversions for irrigation and municipal use, and return flow from irrigated areas. Flow regulated by Chatfield Dam since May 29, 1975 (station 06709600), and Bear Creek Dam since July 1979.

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	34	34	18	38	15	23	194	684	434	121	144	257
2	117	34	18	39	16	25	173	476	500	232	78	240
3	34	34	18	35	37	27	181	456	421	190	43	221
4	28	34	19	34	28	22	210	404	271	74	128	233
5	24	32	19	35	18	25	205	293	255	67	184	236
6	23	30	19	37	20	26	234	221	183	103	55	249
7	26	27	17	23	18	20	210	197	340	152	101	159
8	24	23	18	22	16	19	309	184	134	59	96	153
9	25	20	19	20	17	18	454	176	122	56	50	188
10	30	23	17	17	19	18	434	444	290	56	53	265
11	29	23	15	18	20	17	345	340	372	29	118	227
12	26	20	16	21	16	17	276	368	333	22	170	132
13	32	19	15	22	21	17	330	350	317	21	106	74
14	33	29	14	20	23	18	414	283	297	21	104	69
15	33	24	16	19	41	17	432	170	142	90	95	66
16	32	22	23	17	27	19	675	209	254	101	39	62
17	32	22	22	16	23	101	563	333	296	107	37	55
18	31	21	20	14	17	152	437	350	498	142	49	46
19	30	19	17	16	19	121	658	389	295	165	48	42
20	31	18	15	16	18	167	450	380	128	162	43	40
21	32	16	18	16	17	236	463	366	282	128	38	40
22	32	16	20	14	17	260	549	301	305	138	36	38
23	31	19	21	13	20	291	567	154	264	141	36	37
24	32	21	31	13	18	238	762	232	291	123	38	57
25	34	26	34	14	19	435	487	411	257	44	41	66
26	35	22	35	15	27	483	457	464	182	41	96	103
27	45	18	34	16	29	407	449	476	174	98	113	106
28	37	18	34	22	25	302	503	458	162	163	119	111
29	57	19	35	22	---	248	671	459	168	355	158	113
30	39	18	35	26	---	270	815	587	151	384	390	106
31	41	---	35	26	---	276	---	511	---	179	309	---
TOTAL	1,089	701	687	676	601	4,315	12,907	11,126	8,118	3,764	3,115	3,791
MEAN	35.1	23.4	22.2	21.8	21.5	139	430	359	271	121	100	126
MAX	117	34	35	39	41	483	815	684	500	384	390	265
MIN	23	16	14	13	15	17	173	154	122	21	36	37
AC-FT	2,160	1,390	1,360	1,340	1,190	8,560	25,600	22,070	16,100	7,470	6,180	7,520
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1983 - 2003, BY WATER YEAR (WY)
MEAN	141	146	90.2	77.8	82.8	128	356	792	700	503	388	149
MAX	1,050	733	268	216	166	261	1,074	2,576	2,479	2,337	1,574	724
(WY)	(1985)	(1985)	(1985)	(1985)	(1985)	(1983)	(1984)	(1987)	(1995)	(1995)	(1984)	(1984)
MIN	35.1	23.4	22.2	21.8	21.5	51.7	40.5	60.4	73.9	39.2	22.8	36.7
(WY)	(2003)	(2003)	(2003)	(2003)	(2003)	(1991)	(2002)	(2002)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1983 - 2003
ANNUAL TOTAL	15,895	50,890
ANNUAL MEAN	43.5	139	275
HIGHEST ANNUAL MEAN			692 1984
LOWEST ANNUAL MEAN			48.6 2002
HIGHEST DAILY MEAN	344 May 24	815 Apr 30	4,010 Jun 28, 1995
LOWEST DAILY MEAN	12 Aug 15	13 Jan 23	a12 Aug 15, 2002
ANNUAL SEVEN-DAY MINIMUM	13 Aug 13	14 Jan 20	13 Aug 13, 2002
MAXIMUM PEAK FLOW		1,100 Apr 24	b9,710 Jun 4, 1995
MAXIMUM PEAK STAGE		3.12 Apr 24	7.21 Jun 4, 1995
ANNUAL RUNOFF (AC-FT)	31,530	100,900	199,300
10 PERCENT EXCEEDS	79	409	593
50 PERCENT EXCEEDS	33	43	123
90 PERCENT EXCEEDS	18	18	44

a Also occurred Aug 17-19, 2002. b From rating curve extended above 3,800 ft3/s.