DWR_2668978

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 2002
• Document Type - Publications and Reports: Streamflow Report

34

PLATTE RIVER BASIN

06736000 NORTH FORK BIG THOMPSON RIVER AT DRAKE, CO

LOCATION.--Lat 40°20'45", long 105°26'30", NW¼ sec. 3, T.5 N., R.71 W., Larimer County, 400 ft upstream
from mouth at Drake, Co. on U. S. Highway 34 to Estes Park, Co.

DRAINAGE AREA AND PERIOD OF RECORD.--85.1 mi²; 1947 to present.

GAGE.--Graphic water-stage recorder and DCP in a 42-inch well. The electric drop tape is the primary
reference with a supplemental outside wire weight as backup. An outside wire weight staff was added
on April 26, 2002.

REMARKS.--The primary record is hourly satellite data with chart backup. The record is complete and
reliable except for the following periods: November 14,2001 through April 10, 2002 when the station
was closed for winter. September 18-19, 2002 when the inlets were left closed from a previous
flush. Ponds in the channel upstream often ice up and break loose in the fall and cause bumps in
the record when there is no ice at the control. The record is good, except for the following days
which were estimated and considered poor: November 14,2001 through April 10, 2002, and September
18-19, 2002. The peak flow is considered fair. Station maintained and record developed by Merlin
Friedrichsen.

RATING TABLE.--BTNFDRCO10 USED FROM 01-OCT-2001 TO 05-SEP-2002

DISCHARGE, IN CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
MEAN VALUES

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

1 12 11 9 7 5 6 8 9.6 35 18 9.5 8.9
2 12 10 9 7 4 6 8 8.8 31 18 9.9 8.5
3 11 11 9 7 4 6 8 8.3 32 18 11 8.1
4 11 9.9 9 7 4 5 8 8.2 43 18 12 8
5 12 11 9 7 4 5 8 8.5 39 19 12 7.5
6 12 11 9 7 4 5 8 8.7 32 18 19 7.6
7 12 11 9 7 4 6 8 9.7 33 19 17 8
8 11 12 9 7 4 6 8 10 35 17 20 8.2
9 12 8.1 9 7 4 6 8 9.3 35 17 20 10
10 12 9.2 9 7 4 6 8 8.7 34 17 17 15
11 11 12 9 7 5 7 8.8 8.6 32 17 14 13
12 11 13 9 7 5 7 8 10 28 15 12 17
13 11 11 9 7 5 7 8.4 9.2 26 14 12 14
14 12 9 9 7 5 7 9.2 11 28 13 10 12
15 13 9 8 7 6 8 9.7 10 33 13 9.4 11
16 12 9 8 6 6 8 9.2 11 30 12 9.4 9.7
17 12 9 8 6 6 8 7.8 13 27 12 8.7 9.4
18 12 9 8 6 6 8 8.6 13 26 12 8.5 9.3
19 11 9 8 6 7 9 8.5 14 25 11 8.2 9.2
20 11 9 8 6 7 9 8.1 16 29 12 8.2 9.2
21 11 9 8 6 7 9 7.8 18 31 14 8.6 9.2
22 11 9 8 6 7 9 8.1 18 30 15 9.4 8.6
23 10 9 7 6 7 8 8 16 28 16 8.7 8.2
24 10 9 7 6 7 8 8 21 24 15 9.2 8
25 9.5 9 7 6 7 8 7.7 19 23 12 8.7 7.6
26 12 9 7 6 7 8 7.8 22 22 14 7.9 7.9
27 12 9 7 6 7 8 8.6 24 22 12 8.7 7.9
28 11 9 7 6 7 8 8.1 21 22 11 9 7.7
29 12 9 7 5 --- 8 7.8 21 21 11 9.1 7.4
30 11 9 7 5 --- 8 8.2 23 19 10 11 6.8
31 11 --- 7 5 --- 8 --- 32 --- 9.5 9.4 ---

TOTAL 353.5 293.2 253 198 155 225 246.4 440.6 875 449.5 347.5 282.9
MEAN 11.4 9.8 8.2 6.4 5.5 7.3 8.2 14.2 29 14.5 11.2 9.4
AC-FT 701 582 502 393 307 446 489 874 1740 892 689 561
MAX 13 13 9 7 7 9 9.7 32 43 19 20 17
MIN 9.5 8.1 7 5 4 5 7.7 8.2 19 9.5 7.9 6.8

WTR YR 2002 TOTAL 4119.6 MEAN 11.3 MAX 43 MIN 4 AC-FT 8170

MAX DISCH: 49.2 CFS AT 22:15 ON Jun. 4, 2002 GH 4.13 FT. SHIFT 0.02 FT.
MAX GH: 4.13 FT. AT 22:15 ON Jun. 4, 2002

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