DWR_2668988

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 2003
• Document Type - Publications and Reports: Streamflow Report

PLATTE RIVER BASIN

06710500 BEAR CREEK AT MORRISON, CO

LOCATION.--Lat 39°39'11", long 105°11'42, in SE¼SW¼ sec. 35, T.4 S., R.70 W., Jefferson County, Hydrologic
Unit 10190002, on left bank at Morrison, 180 ft upstream from bridge on State Highway 8 and 0.2 mi
upstream from Mount Vernon Creek.

DRAINAGE AREA AND PERIOD OF RECORD.--164 mi². Sporadic, incomplete data Sep. 1881 to Feb. 1902. Good data
October 1919 to current year. Monthly data for some periods only. Some early years published as
near Morrison, at Starbuck, at Idledale. Water quality data from Oct. 1976 to Sep. 1981.

GAGE.--Water-stage recorder with satellite telemetry, shaft encoder and Telemark in a 48-inch metal shelter
and well. A new concrete wier was installed and put into operation Sep. 10, 2002.

REMARKS.--Hourly data is the primary record, taken from satellite monitoring with chart back-up. The
record is complete, except for February 7-10 when both satellite and chart record were missing. The
gage pool behind the new weir accumulates 100% ice during the winter, but the flow this year was
100% within the notch portion of the weir. The recorded GH’s computed discharges that were
generally close to what was estimated to be present at the gage. Using temperature data, ice can be
presumed to have been present from about December 5 through March 3. The record is rated as good,
except for December 5 to March 3, which is considered to be estimated. Record developed by Robert
E. Cooper. Station maintained by Division One personnel.

RATING TABLE.--BCRMORCO23 USED FROM 01-OCT-2002 TO 16-OCT-2003

DISCHARGE, IN CFS, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
MEAN VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

1 11 12 11 4.6 9.4 7 92 162 177 62 30 39
2 25 14 12 4.3 9 7.8 142 149 133 58 30 31
3 22 14 11 5.6 8.7 8.2 152 137 114 54 28 35
4 19 13 10 6.7 7 7.9 137 131 110 52 38 44
5 18 14 7 6.9 8.5 7.5 116 116 124 50 28 35
6 16 12 7.2 7.7 9 8.9 105 108 115 50 24 31
7 15 12 7.9 7.2 7 10 92 103 121 49 24 40
8 15 13 8.1 7.6 8 13 84 99 103 47 25 57
9 15 15 6.3 7.2 9 13 100 98 94 42 25 46
10 15 12 5.7 6.2 10 14 139 107 97 41 26 43
11 14 10 7.6 8 8.2 15 183 100 93 39 23 38
12 13 9.8 7.4 8 7 17 206 95 91 39 22 36
13 13 12 6.9 7.5 8.8 17 234 96 91 38 20 36
14 12 13 8.8 7.8 9.7 18 265 100 93 35 19 38
15 12 12 8.9 7.4 11 19 276 113 84 35 19 36
16 11 11 8 7.3 9.7 17 236 131 82 36 18 33
17 11 13 8.2 7.8 9.2 19 225 130 82 38 20 29
18 12 12 8.6 5.7 8.7 14 215 139 86 35 26 31
19 11 10 6 7.9 9 8.7 215 133 92 44 27 30
20 11 11 4 7 7.8 15 192 125 97 44 21 30
21 10 12 4 7.9 9.1 20 169 116 89 43 17 27
22 11 11 4.7 6.5 8.7 30 167 117 79 38 18 26
23 11 12 3 7.9 6 32 173 122 77 34 24 26
24 11 11 2.9 8.3 5 34 169 137 76 33 28 24
25 12 9.1 4.8 8 7 31 158 142 77 31 23 23
26 11 7.7 2 7.7 7.5 45 161 131 73 30 22 22
27 11 8.7 2 9.2 7.5 56 175 134 68 30 20 22
28 12 11 3 8.7 6.5 44 177 150 65 35 19 22
29 13 12 2.8 8.8 --- 35 185 142 65 55 21 22
30 11 12 2.9 9 --- 40 180 161 69 44 66 22
31 9.5 --- 3.7 8.8 --- 55 --- 148 --- 35 58 ---

TOTAL 413.5 351.3 196.4 229.2 232 679 5120 3872 2817 1296 809 974
MEAN 13.3 11.7 6.3 7.4 8.3 21.9 171 125 94 42 26 33
AC-FT 820 697 390 455 460 1350 10160 7680 5590 2570 1600 1930
MAX 25 15 12 9.2 11 56 276 162 177 62 66 57
MIN 9.5 7.7 2 4.3 5 7 84 95 65 30 17 22

WTR YR 2003 TOTAL 16989.4 MEAN 46.5 MAX 276 MIN 2 AC-FT 33700

MAX DISCH: 312 CFS AT 01:15 ON Apr. 15, 2003 GH 7.24 FT. SHIFT 0 FT.
MAX GH: 7.24 FT. AT 01:15 ON Apr. 15, 2003

FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD.

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