DWR_2669006

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 2004
• Document Type - Publications and Reports: Streamflow Report

21
PLATTE RIVER BASIN

06727000 BOULDER CREEK NEAR ORODELL, CO

LOCATION.--Lat 40°00'23", long 105°19'49", in NE¼SW¼ sec. 34, T.l N., R.71 W., Boulder County, Hydrologic
Unit 10190005, on left bank along State Highway 119, 0.7 mi southwest of old Orodell, 1.1 mi
upstream from Fourmile Creek, and 2.9 mi southwest of courthouse in Boulder.

DRAINAGE AREA.--102 mi².

GAGE.--Stevens A35 graphic water-stage recorder and Sutron 8210 DCP with shaft encoder in a 6 foot by 6
foot exposed aggregate concrete shelter with a 54-inch corrugated metal well. The primary reference
is a tape down from RP. There is an outside staff gage across the stream that reads approximately 1
foot lower than gage datum. The data collection platform (DCP) provides the primary record. The
station now includes a pressure transducer installed by Urban Drainage and Flood Control District.

REMARKS.--Primary record is taken from hourly satellite data, with graphic chart as backup. Record is
complete and reliable, except for the winter record where the station was off. Measurements were
made approximately every two weeks to create an estimated record. Estimates for these days were
taken from the daily average releases from Barker Reservoir. Record is good, except for the period
November 24, 2003 – March 26, 2004 which is estimated and poor due to ice. The station was turned
off from December 18, 2003 through March 26, 2004. Station maintained and record developed by Lee
Cunning.

RATING TABLE.--BOCOROCO13 USED FROM 01-OCT-2003 TO 18-DEC-2003
BOCOROCO13 USED FROM 26-MAR-2004 TO 30-SEP-2004

DISCHARGE, IN CFS, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004
MEAN VALUES

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

1 18 14 17 14 11 7.5 23 38 97 291 57 39
2 18 15 17 14 11 7.5 24 39 91 237 58 42
3 24 16 16 14 11 7.5 24 36 108 192 61 34
4 30 16 16 14 11 7.5 22 35 159 167 58 34
5 26 15 15 13 10 7.5 25 37 190 155 64 34
6 24 16 15 13 10 7.5 27 54 214 184 62 36
7 25 18 15 13 9.7 7.5 22 74 245 161 56 40
8 25 19 14 13 9.4 7.5 22 78 265 132 54 38
9 25 20 14 12 9.1 7.5 25 76 375 120 64 39
10 24 21 14 12 8.8 7.5 23 85 433 111 71 37
11 26 22 13 12 8.5 7.5 20 83 341 100 67 34
12 28 22 13 12 8.2 13 21 89 239 91 50 37
13 26 23 13 11 7.9 13 23 96 197 92 45 38
14 22 23 13 11 7.7 13 32 88 181 89 46 37
15 18 23 12 11 7.4 13 34 90 197 103 43 37
16 18 23 12 11 7.2 13 33 91 214 127 41 36
17 17 23 12 11 7.2 13 28 85 248 167 41 36
18 16 22 11 11 7.2 13 31 82 359 212 43 34
19 15 26 11 11 7.2 23 24 77 393 200 71 30
20 15 27 11 11 7.2 23 22 86 342 185 65 30
21 15 22 11 11 7.2 23 21 115 324 147 67 43
22 14 22 12 11 7.2 28 23 135 277 137 62 55
23 14 24 12 11 7.4 28 26 142 193 181 63 57
24 14 22 13 11 7.5 33 28 140 172 184 54 49
25 14 21 13 11 7.5 40 37 130 174 162 62 46
26 14 20 13 11 7.5 41 40 112 199 137 59 46
27 14 19 13 11 7.5 39 49 98 226 113 51 41
28 15 19 14 11 7.5 35 48 120 236 90 43 45
29 14 18 14 11 7.5 27 48 180 207 80 39 43
30 14 18 14 11 --- 28 43 168 231 72 42 48
31 14 --- 15 11 --- 27 --- 110 --- 61 37 ---

TOTAL 596 609 418 365 243.5 568.5 868 2869 7127 4480 1696 1195
MEAN 19 20 14 12 8.4 18.3 29 93 238 145 55 40
AC-FT 1180 1210 829 724 483 1130 1720 5690 14140 8890 3360 2370
MAX 30 27 17 14 11 41 49 180 433 291 71 57
MIN 14 14 11 11 7.2 7.5 20 35 91 61 37 30

WTR YR 2004 TOTAL 21035 MEAN 57.5 MAX 433 MIN 7.2 AC-FT 41720

MAX DISCH: 461 CFS AT 04:00 ON Jun. 10, 2004 GH 3.12 FT. SHIFT 0.21 FT.
MAX GH: 3.12 FT. AT 04:00 ON Jun. 10, 2004

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

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