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USGS
Water Resources of Colorado


BLUE RIVER BASIN

09050700 BLUE RIVER BELOW DILLON, CO

LOCATION.--Lat 39°37'32", long 106°03'57", in SE14SE14 sec.12, T.5 S., R.78 W., Summit County, Hydrologic Unit 14010002, on right bank 0.3 mi downstream from Dillon Dam, 0.1 mi upstream from Straight Creek, and 1.1 mi west of Dillon.

DRAINAGE AREA.--335 mi2.

PERIOD OF RECORD.--January 1960 to current year. Statistical summary computed for 1963 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09050700.

GAGE.--Water-stage recorder with satellite telemetry, and concrete control. Elevation of gage is 8,760 ft above NGVD of 1929, from topographic map.

REMARKS.--No estimated daily discharges. Records good. Flow regulated since Sept. 3, 1963, by Dillon Reservoir, 0.3 mi upstream (station 09050600). Natural flow of stream affected by transmountain diversions, transbasin diversions, and diversions upstream from station for irrigation of about 400 acres of hay meadows. 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

54

54

54

56

77

94

75

50

52

51

113

110

2

54

54

54

56

77

94

75

50

52

51

113

110

3

54

54

54

56

77

94

75

50

52

86

113

110

4

54

54

55

55

77

93

61

50

53

110

113

110

5

54

54

54

54

77

94

50

50

54

110

113

110

6

54

54

54

55

77

94

50

50

54

110

113

110

7

54

54

54

55

81

95

50

50

54

110

113

110

8

54

54

54

54

82

94

50

50

54

110

113

110

9

54

54

54

54

82

94

50

51

54

110

113

110

10

54

54

54

54

82

93

50

52

52

148

113

110

11

54

54

54

54

82

83

50

51

50

273

113

86

12

54

54

54

54

82

78

50

51

50

393

113

74

13

54

54

54

55

82

77

50

52

50

350

112

110

14

54

54

54

54

84

70

50

52

51

167

113

110

15

54

54

54

55

82

52

50

52

51

110

113

110

16

54

54

54

55

82

50

50

52

52

110

113

110

17

54

54

54

54

82

50

50

52

51

164

113

110

18

54

54

54

54

82

50

50

52

50

348

113

110

19

54

54

54

54

82

50

50

52

50

395

113

110

20

54

54

54

54

82

50

50

52

50

344

113

110

21

54

54

54

54

82

50

50

52

50

122

113

110

22

54

54

54

54

82

50

50

53

51

50

113

110

23

54

54

54

70

82

50

50

54

51

50

113

111

24

54

54

54

81

82

61

50

53

50

86

113

113

25

54

54

54

82

82

80

50

52

50

109

113

113

26

54

54

54

82

82

81

50

52

50

110

113

113

27

54

54

54

82

90

81

50

51

50

110

113

112

28

54

54

54

79

94

81

50

50

50

111

113

112

29

54

54

54

77

---

81

50

50

50

113

113

113

30

54

54

54

77

---

77

50

50

50

112

111

113

31

54

---

55

77

---

75

---

51

---

113

109

---

TOTAL

1,674

1,620

1,676

1,907

2,287

2,316

1,586

1,589

1,538

4,736

3,496

3,260

MEAN

54.0

54.0

54.1

61.5

81.7

74.7

52.9

51.3

51.3

153

113

109

MAX

54

54

55

82

94

95

75

54

54

395

113

113

MIN

54

54

54

54

77

50

50

50

50

50

109

74

AC-FT

3,320

3,210

3,320

3,780

4,540

4,590

3,150

3,150

3,050

9,390

6,930

6,470

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1963 - 2003, BY WATER YEAR (WY)
MEAN

120

99.1

85.2

77.0

79.2

83.3

124

301

693

425

244

158

MAX

305

268

193

158

155

269

742

1,101

1,813

1,476

999

348

(WY)

(2000)

(1985)

(1985)

(1966)

(1997)

(1996)

(1996)

(1984)

(1984)

(1984)

(1984)

(1983)

MIN

0.000

23.2

44.6

31.0

47.6

48.6

39.3

24.0

32.3

51.5

51.7

18.6

(WY)

(1964)

(1964)

(1989)

(1984)

(1986)

(1986)

(1965)

(1965)

(1965)

(1981)

(1981)

(1963)

SUMMARY STATISTICS
FOR 2002 CALENDAR YEAR
FOR 2003 WATER YEAR
WATER YEARS 1963 - 2003
ANNUAL TOTAL
21,746
27,685
ANNUAL MEAN
59.6
75.8
208
HIGHEST ANNUAL MEAN
538 1984
LOWEST ANNUAL MEAN
65.5 1981
HIGHEST DAILY MEAN
96 Jan 3
395 Jul 19
1,940 May 24, 1984
LOWEST DAILY MEAN
53 Jul 14
50 Mar 16
a0.00 Sep 4, 1963
ANNUAL SEVEN-DAY MINIMUM
54 Jul 8
50 Mar 16
0.00 Sep 4, 1963
MAXIMUM PEAK FLOW
399 Jul 18
2,010 May 25, 1984
MAXIMUM PEAK STAGE
1.78 Jul 18
b3.88 May 25, 1984
ANNUAL RUNOFF (AC-FT)
43,130
54,910
150,400
10 PERCENT EXCEEDS
77
113
455
50 PERCENT EXCEEDS
54
54
103
90 PERCENT EXCEEDS
54
50
51

a Also occurred Sept 5 to Nov 29, 1963.
b Maximum gage height for period of record, 3.95 ft, Jun 22, 1983.


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Water Resources of Colorado
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