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USGS
Water Resources of Colorado


PLATTE RIVER BASIN

06764000 SOUTH PLATTE RIVER AT JULESBURG, CO

LOCATION.--Lat 40°58'46", long 102°15'15", in NW14NE14 and NE14SE14 (three channels) sec.33, T.12 N., R.44 W., Sedgwick County, Hydrologic Unit 10190018, on left bank of channel no. 4 (left channel) 215 ft downstream from bridge, on right bank of channel no. 2, 5 ft downstream from bridge on U.S. Highway 385, and on left bank of channel no. 1, 5 ft upstream from bridge on U.S. Highway 385, 0.9 mi southeast of Julesburg, 3.0 mi upstream from Colorado-Nebraska State line, and 8 mi downstream from Lodgepole Creek.

DRAINAGE AREA.--22,821 mi2 (revised).

PERIOD OF RECORD.--April 1902 to current year. Monthly discharge only for some periods, published in WSP 1310. Published as "near Julesburg" 1903-8, 1915-16, and as "at Ovid" 1922-24. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06764000

REVISED RECORDS.--WSP 1310: 1902, 1906-7, 1948(P). WSP 1440: 1903-4. WDR CO-86-1: Drainage area.

GAGE.--Three water-stage recorders with satellite telemetry. Datum of channel no. 4 gage is 3,446.76 ft above NGVD of 1929. See WSP 1710 or 1730 for history of changes prior to Oct. 1, 1956. Since Oct. 1, 1956, water-stage recorders on channels nos. 2 and 4. Channel no. 2: Oct. 1, 1956 to Sept. 22, 1965, at site 300 ft downstream at present datum. Channel no. 4: Oct. 1, 1956 to Dec. 10, 1958, at site 135 ft downstream at present datum. Since May 11, 1973, supplementary water-stage recorder on channel no. 2 at bridge 800 ft upstream at same datum. Since Aug. 16, 1996, water-stage recorder on channel no. 1; satellite telemetry installed Oct. 24, 1996.

REMARKS.--Records good except for periods Nov. 26 to Mar. 10, and July 15 to Aug. 12, which are fair, and estimated daily discharges, which are poor. Natural flow of stream affected by transmountain diversions, storage reservoirs, power developments, ground-water withdrawals and diversions for irrigation of about 1,200,000 acres upstream from station, and return flow from irrigated areas.

COOPERATION.--Records collected and computed by Colorado Division of Water Resources and reviewed by Geological Survey.

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

21

16

14

21

64

e84

44

138

31

27

20

17

2

27

20

14

27

57

e112

55

152

33

25

24

18

3

24

17

14

36

53

116

61

157

32

25

24

16

4

28

16

14

54

51

104

71

149

33

24

24

e17

5

31

16

14

33

50

86

84

140

32

25

24

15

6

29

16

17

35

47

81

110

134

34

21

26

15

7

26

e16

15

27

44

72

138

127

47

26

26

17

8

26

e16

13

27

46

42

149

141

61

38

26

19

9

26

e16

15

25

47

34

116

146

104

26

25

35

10

27

e15

17

27

44

32

150

147

103

21

23

34

11

27

e16

20

e29

44

30

141

120

108

e20

22

38

12

26

e16

16

e37

44

29

137

114

132

e20

21

42

13

26

16

17

38

44

26

114

84

107

e18

20

44

14

26

16

17

39

44

25

93

78

98

e18

19

51

15

26

16

17

44

43

24

89

69

78

17

18

56

16

29

15

19

e38

42

24

98

69

61

16

18

62

17

19

15

21

e39

43

25

94

69

55

16

18

68

18

18

14

20

e40

44

30

96

67

56

15

e18

79

19

17

15

19

51

49

33

94

67

56

16

19

93

20

16

14

21

56

46

29

92

65

50

17

19

101

21

17

14

20

66

43

27

89

57

42

16

16

107

22

16

14

22

e63

46

27

90

47

38

15

15

108

23

17

15

e29

e64

e39

28

92

43

38

15

15

107

24

16

15

e38

e65

e60

29

101

40

38

21

14

105

25

19

15

e38

e65

e59

29

103

36

36

22

14

111

26

18

15

e49

67

61

27

124

37

34

19

12

116

27

20

15

e48

87

63

27

139

34

31

24

12

114

28

16

14

e48

96

67

26

115

33

31

30

e16

103

29

26

14

e37

91

---

49

104

31

34

25

15

95

30

20

14

35

76

---

44

115

32

30

22

14

91

31

16

---

26

75

---

40

---

30

---

20

14

---

TOTAL

696

462

724

1,538

1,384

1,391

3,098

2,653

1,663

660

591

1,894

MEAN

22.5

15.4

23.4

49.6

49.4

44.9

103

85.6

55.4

21.3

19.1

63.1

MAX

31

20

49

96

67

116

150

157

132

38

26

116

MIN

16

14

13

21

39

24

44

30

30

15

12

15

AC-FT

1,380

916

1,440

3,050

2,750

2,760

6,140

5,260

3,300

1,310

1,170

3,760

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1902 - 2003, BY WATER YEAR (WY)
MEAN

313

353

415

530

610

550

545

1,054

1,474

303

186

247

MAX

2,427

2,358

1,371

1,571

1,864

2,200

2,808

9,922

12,200

5,059

1,882

1,964

(WY)

(1985)

(1985)

(1985)

(1998)

(1930)

(1939)

(1983)

(1980)

(1983)

(1983)

(1997)

(1984)

MIN

5.85

15.4

18.8

49.6

49.4

44.9

17.3

24.1

8.33

2.15

2.52

5.60

(WY)

(1904)

(2003)

(1912)

(2003)

(2003)

(2003)

(1904)

(1911)

(1910)

(1903)

(1902)

(1903)

SUMMARY STATISTICS
FOR 2002 CALENDAR YEAR
FOR 2003 WATER YEAR
WATER YEARS 1902 - 2003
ANNUAL TOTAL
33,705
16,754
ANNUAL MEAN
92.3
45.9
551
HIGHEST ANNUAL MEAN
2,882 1983
LOWEST ANNUAL MEAN
45.9 2003
HIGHEST DAILY MEAN
550 Feb 5
157 May 3
30,800 Jun 16, 1921
LOWEST DAILY MEAN
13 Dec 8
12 Aug 26
a0.00 Aug 18, 1902
ANNUAL SEVEN-DAY MINIMUM
14 Nov 28
14 Aug 24
0.00 Jul 25, 1903
MAXIMUM PEAK FLOW
174 May 2
37,600 Jun 20, 1965
MAXIMUM PEAK STAGE
b3.46 May 2
c10.44 Jun 20, 1965
ANNUAL RUNOFF (AC-FT)
66,850
33,230
399,500
10 PERCENT EXCEEDS
279
104
1,170
50 PERCENT EXCEEDS
26
31
227
90 PERCENT EXCEEDS
16
15
28

e Estimated.
a Also occurred Aug 19-20, 1902, and Jul 25 to Aug 7, 1903.
b Gage height recorded for channel #1.
c From floodmarks in gage well.


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Water Resources of Colorado
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Last Modified: April 28, 2004