COLORADO RIVER MAIN STEM

09163500 COLORADO RIVER NEAR COLORADO-UTAH STATE LINE

LOCATION.--Lat 39°07'58", long 109°01'35", in SE14NW14 sec.5, T.11 S., R.104 W., Mesa County, Hydrologic Unit 14010005, on right bank 0.5 mi downstream from McDonald Creek, 1.7 mi upstream from Colorado-Utah State line, and 12 mi southwest of Mack.

DRAINAGE AREA.--17,843 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--May 1951 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09163500

REVISED RECORDS.--WRD Colo. 1974: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 4,325 ft above NGVD of 1929, from topographic map. May 1951 to Oct. 1979, water-stage recorder at site 5.7 mi upstream at different datum. Oct. 1979 to Mar. 1995, water stage recorder at site 0.2 mi downstream at same datum.

REMARKS.--Records good except for extimated daily discharges, which are fair. Natural flow of stream affected by transmountain diversions, storage reservoirs, power development, and diversions for irrigation. (Records include all return flow from irrigated areas).

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	2,530	3,040	2,180	1,930	1,820	1,930	1,930	4,280	22,900	4,280	2,750	2,840
2	2,490	2,950	2,190	1,850	1,890	1,860	1,850	3,910	24,500	4,130	2,600	2,820
3	2,930	2,790	e2,250	1,870	1,940	1,800	1,830	3,570	23,900	3,970	2,560	2,730
4	3,540	2,720	e2,350	1,800	1,920	1,780	2,070	3,740	19,500	3,930	2,560	2,500
5	2,980	e2,690	2,180	1,930	1,860	1,770	2,160	4,410	16,600	4,040	2,490	2,580
6	2,760	e2,710	2,130	1,990	1,750	1,840	2,120	4,310	14,200	3,980	2,490	2,830
7	2,700	e2,670	2,170	1,960	1,720	1,810	1,970	3,800	11,900	3,790	2,440	3,840
8	2,620	2,730	2,130	1,920	1,560	1,920	1,680	3,450	10,600	3,630	2,410	3,760
9	2,520	3,790	e2,030	1,840	1,530	1,850	1,630	3,440	9,630	3,340	2,430	4,000
10	2,450	3,570	e2,010	1,840	1,520	1,850	1,420	3,970	9,480	3,030	2,440	6,030
11	2,370	3,120	1,840	1,900	1,610	1,870	1,350	3,590	9,460	2,930	2,370	6,860
12	2,300	2,860	1,920	1,970	1,750	1,930	1,380	3,620	9,060	2,830	2,260	5,530
13	2,240	2,740	1,900	1,980	1,840	2,020	1,670	3,400	9,010	2,740	2,220	4,670
14	2,260	2,630	1,940	1,940	1,940	2,140	1,970	3,470	8,890	2,750	2,180	4,330
15	2,240	2,650	2,010	1,890	2,200	2,170	2,370	3,930	8,320	2,730	2,210	4,160
16	2,210	2,650	1,940	1,890	2,140	2,330	3,030	5,790	8,230	2,620	2,580	3,960
17	2,110	2,600	1,950	1,860	2,010	2,350	2,880	7,530	8,280	2,550	2,730	3,760
18	2,110	2,480	1,970	1,790	1,900	2,230	2,540	9,510	7,590	2,650	2,680	3,530
19	2,110	2,470	2,050	1,840	1,880	2,130	2,440	11,900	7,280	2,600	2,860	3,390
20	2,090	2,400	2,010	1,760	1,830	2,110	2,340	12,400	7,200	2,660	3,100	3,560
21	2,060	2,210	1,890	1,780	1,760	2,010	2,050	12,000	7,330	2,670	2,990	3,520
22	2,070	2,230	1,850	1,830	1,730	1,980	1,910	12,100	6,970	2,590	2,680	3,470
23	2,090	2,280	1,930	1,860	1,780	1,940	2,020	12,800	6,500	2,480	2,830	3,320
24	2,320	2,260	1,790	1,880	1,770	1,980	2,510	14,000	6,300	2,590	3,350	3,140
25	2,690	2,250	1,800	1,900	1,750	2,210	2,650	14,600	5,830	2,480	3,050	3,000
26	2,600	e2,250	1,780	1,880	1,800	2,320	2,510	15,600	5,130	2,400	2,980	2,970
27	2,430	e2,260	1,800	1,880	1,910	2,270	2,890	15,700	4,690	2,460	2,860	3,000
28	2,470	e2,070	1,740	1,860	1,900	2,170	3,840	16,800	4,630	3,020	2,830	3,060
29	2,570	e1,930	1,770	1,850	---	2,180	4,550	19,000	4,620	3,290	2,890	3,000
30	2,600	e2,080	1,920	1,860	---	2,130	4,670	20,900	4,500	3,070	2,850	2,960
31	2,630	---	1,950	1,830	---	2,040	---	22,800	---	2,810	2,800	---
TOTAL	76,090	78,080	61,370	58,160	51,010	62,920	70,230	280,320	303,030	95,040	82,470	109,120
MEAN	2,455	2,603	1,980	1,876	1,822	2,030	2,341	9,043	10,100	3,066	2,660	3,637
MAX	3,540	3,790	2,350	1,990	2,200	2,350	4,670	22,800	24,500	4,280	3,350	6,860
MIN	2,060	1,930	1,740	1,760	1,520	1,770	1,350	3,400	4,500	2,400	2,180	2,500
AC-FT	150,900	154,900	121,700	115,400	101,200	124,800	139,300	556,000	601,100	188,500	163,600	216,400
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 2003, BY WATER YEAR (WY)
MEAN	3,988	4,002	3,570	3,347	3,407	3,845	5,787	13,920	16,820	7,637	3,898	3,682
MAX	7,672	6,925	5,993	6,129	5,996	7,486	15,600	37,960	43,830	29,650	10,190	7,174
(WY)	(1987)	(1987)	(1986)	(1985)	(1985)	(1986)	(1985)	(1984)	(1957)	(1995)	(1983)	(1997)
MIN	1,916	2,363	1,980	1,871	1,815	1,984	1,631	2,283	2,431	1,662	1,350	1,361
(WY)	(1957)	(1978)	(2003)	(1964)	(1964)	(1964)	(1977)	(1977)	(2002)	(1977)	(1977)	(1956)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1951 - 2003
ANNUAL TOTAL	826,210	1,327,840
ANNUAL MEAN	2,264	3,638	6,162
HIGHEST ANNUAL MEAN			13,470 1984
LOWEST ANNUAL MEAN			2,417 2002
HIGHEST DAILY MEAN	4,470 Jun 2	24,500 Jun 2	68,300 May 27, 1984
LOWEST DAILY MEAN	1,280 Aug 19	1,350 Apr 11	960 Sep 7, 1956
ANNUAL SEVEN-DAY MINIMUM	1,320 Aug 14	1,590 Apr 7	1,110 Sep 2, 1956
MAXIMUM PEAK FLOW		26,100 Jun 3	a69,800 May 27, 1984
MAXIMUM PEAK STAGE		10.67 Jun 3	b16.12 May 27, 1984
ANNUAL RUNOFF (AC-FT)	1,639,000	2,634,000	4,464,000
10 PERCENT EXCEEDS	2,960	7,060	13,300
50 PERCENT EXCEEDS	2,240	2,480	3,920
90 PERCENT EXCEEDS	1,570	1,830	2,240

e Estimated. a At site 0.2 mi downstream, at present datum. b From high-water mark.