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Water Resources of Colorado


GUNNISON RIVER BASIN

09126000 CIMARRON RIVER NEAR CIMARRON, CO

LOCATION.--Lat 38°15'26", long 107°32'46", in NW14NE14 Sec.8, T.46 N., R.6 W., Gunnison County, Hydrologic Unit 14020002, on right bank 0.2 mi upstream from Forest Service bridge, 0.8 mi upstream from headgate on Cimarron ditch, 1.9 mi downstream from Silver Jack Dam, and 13 mi south of Cimarron.

DRAINAGE AREA.--66.6 mi2.

PERIOD OF RECORD.--October 1954 to current year. Prior to October 1965, published as Cimarron Creek near Cimarron. Statistical summary computed for 1971 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09126000

REVISED RECORDS.--WSP 2124: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry and crest-stage gage. Datum of gage is 8,641.48 ft above NGVD of 1929. Oct. 14, 1954 to Oct. 11, 1972 at site 0.4 mi downstream at different datum. Oct. 12, 1972 to Sept. 30, 1996 at site 0.2 mi downstream at datum 10.00 ft lower.

REMARKS.--Records good except for estimated daily discharges, which are poor, and discharges above 800 ft3/s, which are fair. Diversion upstream from station through Owl Creek ditch into Uncompahgre River basin. Flow regulated by Silver Jack Dam, 1.9 mi upstream since Dec. 23, 1970, total capacity, 13,520 acre-ft. 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.

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

29

14

e16

e11

e17

e14

e16

27

943

138

124

99

2

27

14

e16

e11

e16

e14

e16

26

913

130

123

99

3

23

e14

e14

e11

e14

e16

e18

26

862

124

121

103

4

23

e13

e13

e14

e10

e16

e16

31

809

138

127

105

5

23

e14

e11

e12

e11

e18

e15

51

724

153

135

109

6

23

e14

e12

e12

e11

e17

e16

73

617

154

135

107

7

23

e13

e13

e13

e10

e18

e18

73

550

154

131

110

8

23

e13

e14

e15

e10

e18

e20

77

484

152

125

106

9

23

e15

e13

e13

e12

e18

e19

86

506

152

124

112

10

23

e19

e12

e14

e14

e19

19

86

456

153

125

114

11

23

e14

e13

e13

e14

e21

20

85

466

156

121

108

12

22

e13

e13

e12

e15

e19

21

94

454

153

118

102

13

19

e13

e13

e12

e16

e15

23

110

380

152

118

96

14

13

e13

e12

e13

e18

e17

24

111

349

155

118

93

15

13

e14

e12

e13

e17

e15

23

94

391

150

117

92

16

13

e13

e12

e13

e16

e15

22

73

370

149

117

91

17

13

e14

e13

e14

e14

e14

24

126

315

145

118

91

18

13

e15

e15

e13

e16

e13

23

130

292

142

118

92

19

22

e16

e13

e12

e15

e12

21

130

271

142

119

92

20

28

e17

e11

e11

e15

e14

23

130

271

142

117

92

21

28

e18

e13

e11

e15

e14

24

135

245

145

117

65

22

28

e20

e13

e11

e15

e16

25

117

236

148

118

33

23

28

e21

e12

e11

e15

e17

24

68

240

147

120

26

24

28

e17

e13

e11

e17

e19

22

71

206

144

115

20

25

23

e14

e13

e11

e15

e21

26

85

183

142

107

19

26

14

e13

e13

e11

e13

e20

31

95

172

143

103

19

27

14

e12

e11

e13

e14

e18

31

120

171

144

101

19

28

14

e13

e12

e15

e14

e16

32

662

162

138

100

20

29

14

e13

e13

e15

---

e17

30

984

153

124

100

19

30

13

e16

e11

e17

---

e18

28

1,120

147

123

101

19

31

14

---

e11

e17

---

e18

---

1,060

---

124

100

---

TOTAL

637

442

396

395

399

517

670

6,156

12,338

4,456

3,633

2,272

MEAN

20.5

14.7

12.8

12.7

14.2

16.7

22.3

199

411

144

117

75.7

MAX

29

21

16

17

18

21

32

1,120

943

156

135

114

MIN

13

12

11

11

10

12

15

26

147

123

100

19

AC-FT

1,260

877

785

783

791

1,030

1,330

12,210

24,470

8,840

7,210

4,510

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2003, BY WATER YEAR (WY)
MEAN

46.1

22.4

16.4

15.0

15.3

16.7

24.4

174

421

212

116

74.7

MAX

135

46.9

31.7

30.0

29.4

35.3

46.5

440

799

640

239

126

(WY)

(1983)

(1986)

(1974)

(1974)

(1986)

(1986)

(1987)

(1996)

(1984)

(1995)

(1983)

(1995)

MIN

20.2

8.18

6.79

2.36

3.03

4.45

8.46

46.5

109

82.7

63.8

32.2

(WY)

(1991)

(1990)

(1978)

(1971)

(1971)

(1971)

(1977)

(1995)

(2002)

(2002)

(2002)

(1977)

SUMMARY STATISTICS
FOR 2002 CALENDAR YEAR
FOR 2003 WATER YEAR
WATER YEARS 1971 - 2003
ANNUAL TOTAL
16,602
32,311
ANNUAL MEAN
45.5
88.5
a96.4
HIGHEST ANNUAL MEAN
180 1984
LOWEST ANNUAL MEAN
40.2 1977
HIGHEST DAILY MEAN
128 May 31
1,120 May 30
1,330 Jun 16, 1995
LOWEST DAILY MEAN
e11 Dec 5
e10 Feb 4
b,c0.00 Dec 24, 1970
ANNUAL SEVEN-DAY MINIMUM
e12 Dec 25
e11 Jan 20
0.00 Dec 24, 1970
MAXIMUM PEAK FLOW
1,620 May 30
d,f1,620 Jun 5, 1997
MAXIMUM PEAK STAGE
3.75 May 30
g3.91 Jun 5, 1997
ANNUAL RUNOFF (AC-FT)
32,930
64,090
69,820
10 PERCENT EXCEEDS
102
153
249
50 PERCENT EXCEEDS
27
21
30
90 PERCENT EXCEEDS
13
13
11

e Estimated.
a Average discharge for 16 years (water years 1955-70), 88.6 ft3/s; 64,190 acre-ft/yr, prior to completion of Silver Jack Dam.
b Also occurred Dec 25-31, 1970, and Jan 1-9, 1971. Result of storage in Silver Jack Dam.
c Minimum daily discharge prior to construction of Silver Jack Dam, 8.0 ft3/s, Dec 27-28, 1962, and Jan 13, 1963.
d Also occurred May 30, 2003.
f Maximum discharge and stage for period of record, 1,790 ft3/s, Jun 28, 1957, gage height, 8.32 ft, site and datum then in use.
g Maximum gage height for statistical period, 6.16 ft, Jun 25, 1971.


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