DWR_2668988

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

PLATTE RIVER BASIN

06725500 MIDDLE BOULDER CREEK AT NEDERLAND, CO

LOCATION.--Lat 39°57'42", long 105°30'14", in NE¼SE¼ sec. 13, T.l S., R.73 W., Boulder County, Hydrologic
Unit 10190005, on left bank at Nederland just downstream from North Beaver Creek at inlet to Barker
Reservoir.

DRAINAGE AREA.--36.2 mi².

GAGE.--Water-stage recorder and data collection platform in wooden shelter with concrete well at a compound
sharp-crested weir. DCP is the primary record with chart recorder as backup. The DCP was upgraded
to a High Data Rate (HDR) during the 2002 Water Year. A new continuous graphic stage recorder was
installed in June of 2003 and the weekly recorder was removed.

REMARKS.--Record is complete and reliable, except for the following periods, which are considered poor when
the stage-discharge relation was affected by ice catching on the weir and inlets freezing: November
27, 28, 29, 2002; December 3, 4, 6-13, 20, 26-31, 2002; January: 1-3, 10-19, 2003. Record is
fair, except for ice affected days, which are estimated. Station maintained by Public Service Co
and record developed by M.L. Cunning.

RATING TABLE.--BOCMIDCO07 USED FROM 01-OCT-2002 TO 30-SEP-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 12 10 7.7 1.6 5.9 5.1 8.8 46 577 207 60 41
2 16 12 8 1.2 5.7 5.2 11 44 482 205 57 37
3 18 10 7.9 3.4 6 5.2 12 45 420 208 60 38
4 16 13 7.3 5.8 7.6 5 11 46 353 192 64 38
5 16 10 7.5 5.9 5.8 5 9.8 43 301 180 55 35
6 15 11 7.1 5.8 5.9 5.5 9.4 42 248 166 49 43
7 15 10 6.5 5.9 5.4 5.2 9.2 42 234 150 47 41
8 17 9.8 6.1 5.8 5.8 5.3 9.7 42 201 143 47 44
9 15 10 5.5 5.4 4.8 5.2 11 40 223 142 46 61
10 14 11 5.5 4.5 8.2 6.2 16 41 280 134 44 48
11 13 11 5.3 8.9 8.6 6.9 24 39 319 127 42 45
12 12 12 4.5 12 5.5 6.4 29 43 325 126 40 41
13 11 11 4.9 13 5.1 6.7 38 55 295 121 39 37
14 11 9.8 6.8 16 5.1 7.6 48 77 302 116 39 35
15 11 9.3 6.8 14 5.1 8.3 52 99 314 113 37 31
16 10 12 6.7 12 4.9 8.1 45 136 296 111 37 30
17 9.8 9.7 6.5 10 4.9 7.6 44 198 276 113 59 28
18 9.9 8.9 6.7 9.8 4.9 6.6 43 246 282 109 68 30
19 9.4 11 3.4 9.1 4.6 8.7 39 253 291 105 54 31
20 9.1 8.9 2.6 6.9 5.6 15 36 224 280 116 44 29
21 8.8 8.9 2.4 6.3 4.6 15 34 232 260 105 40 26
22 9.3 8.8 2.5 6.1 4.9 12 34 261 253 95 38 25
23 9.6 8.6 2.2 6.1 5.4 11 33 315 251 90 36 21
24 10 8.1 1.7 5.8 5.7 9.4 32 352 255 84 39 19
25 9.2 8.8 1.2 5.9 5.8 8.4 35 360 235 84 43 18
26 9.8 9.6 1.5 5.7 5.2 7.9 44 376 193 79 43 17
27 11 8 3.5 5.8 5.5 7.6 51 423 195 82 37 17
28 10 8 3.2 5.6 5.3 7.3 48 488 207 84 35 17
29 9.3 8 5.6 5.4 --- 7.4 50 540 219 84 35 16
30 6.9 7.9 2.7 6.2 --- 7.2 50 584 216 82 63 16
31 11 --- 1.5 5.7 --- 7.1 --- 581 --- 66 51 ---

TOTAL 365.1 295.1 151.3 221.6 157.8 235.1 916.9 6313 8583 3819 1448 955
MEAN 11.8 9.8 4.9 7.2 5.6 7.6 30.6 204 286 123 47 32
AC-FT 724 585 300 440 313 466 1820 12520 17020 7570 2870 1890
MAX 18 13 8 16 8.6 15 52 584 577 208 68 61
MIN 6.9 7.9 1.2 1.2 4.6 5 8.8 39 193 66 35 16

WTR YR 2003 TOTAL 23460.9 MEAN 64.3 MAX 584 MIN 1.2 AC-FT 46530

MAX DISCH: 662 CFS AT 21:30 ON May. 31, 2003 GH 3.87 FT. SHIFT 0 FT.
MAX GH: 3.87 FT. AT 21:30 ON May. 31, 2003

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

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