PLATTE RIVER BASIN

06701700 WEST CREEK ABOVE SHREWSBURY GULCH NEAR WESTCREEK, CO

LOCATION.--Lat 39°08'35", long 105°09'39", in NW14NW14 sec.31, T.10 S., R.69 W., Douglas County, Hydrologic Unit 10190002, on left bank of J.O. Hill Lake, and 2,000 ft upstream from Shrewsbury Gulch, in town of Westcreek.

DRAINAGE AREA.--56.3 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--May to September 2003 (seasonal records only). For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06701700

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 7,520 ft above NGVD of 1929, from topographic map.

REMARKS.--Records poor. Natural flow of the stream affected by a 24 in. pipe diversion through dam, which bypasses spillway and requires further discharges measurements on pipe discharge channel. Several measurements of specific conductance and water temperature were obtained and are published in the "Supplemental Water-Quality Data For Gaging Stations" section of this report.

EXTREMES FOR PERIOD OF RECORD (seasonal only).--Maximum discharge, 273 ft3/s, Aug. 31, 2003, gage height, 6.28 ft; minimum daily, 1.80 ft3/s, many days in Sept. 2003.

EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum flood known, 2,020 ft3/s, May 7, 1973, on basis of slope-area measurement of peak flow made at location about 1.0 mi downstream from present site, caused by failure of two upstream dams.

EXTREMES FOR CURRENT YEAR (seasonal only).--Maximum discharge, 273 ft3/s, Aug. 31, gage height, 6.28 ft; minimum daily, 1.8 ft3/s, many days in Sept.

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	---	---	---	---	---	---	---	e4.5	e5.0	e6.0	e4.6	e8.5
2	---	---	---	---	---	---	---	e4.5	e8.1	e3.8	e25	e6.1
3	---	---	---	---	---	---	---	e4.5	e4.9	e3.2	e7.9	e5.7
4	---	---	---	---	---	---	---	e4.4	e3.6	e2.9	e4.5	e5.0
5	---	---	---	---	---	---	---	e4.4	e4.1	e2.4	e4.1	e3.8
6	---	---	---	---	---	---	---	e4.0	e5.1	e2.3	e3.5	e5.4
7	---	---	---	---	---	---	---	e4.3	e5.1	e2.3	e3.4	e10
8	---	---	---	---	---	---	---	e4.3	e5.1	e2.2	e4.5	e5.8
9	---	---	---	---	---	---	---	e4.3	e4.9	e2.2	e4.5	e2.5
10	---	---	---	---	---	---	---	e4.0	e4.4	e2.2	e4.5	e2.3
11	---	---	---	---	---	---	---	e4.2	e4.3	e2.1	e7.4	e2.2
12	---	---	---	---	---	---	---	e4.2	e4.2	e2.0	e5.5	e2.2
13	---	---	---	---	---	---	---	e4.2	e3.6	e2.0	e4.7	e2.1
14	---	---	---	---	---	---	---	e4.2	e3.7	e2.0	e4.1	e2.1
15	---	---	---	---	---	---	---	e4.1	e4.0	e2.0	e2.5	e2.0
16	---	---	---	---	---	---	---	e6.1	e5.0	e2.0	e2.0	e1.9
17	---	---	---	---	---	---	---	e6.1	e10	e2.1	e2.0	e1.9
18	---	---	---	---	---	---	---	e5.2	e24	e2.1	e2.1	e1.9
19	---	---	---	---	---	---	---	e4.5	e11	e2.4	e3.6	e1.9
20	---	---	---	---	---	---	---	e4.1	e8.9	e22	e4.8	e1.9
21	---	---	---	---	---	---	---	e4.0	e4.0	e8.6	e3.0	e1.8
22	---	---	---	---	---	---	---	e3.9	e3.5	e6.1	e2.8	e1.8
23	---	---	---	---	---	---	---	e3.9	e3.0	e5.0	e3.0	e1.8
24	---	---	---	---	---	---	---	e3.9	e2.5	e4.6	e5.9	e1.8
25	---	---	---	---	---	---	---	e3.9	e2.5	e4.2	e4.9	e1.8
26	---	---	---	---	---	---	---	e4.0	e2.1	e3.9	e4.8	e1.8
27	---	---	---	---	---	---	---	e4.1	e2.3	e6.7	e4.9	e1.8
28	---	---	---	---	---	---	---	e4.8	e2.3	e17	e4.6	e1.8
29	---	---	---	---	---	---	---	e3.9	e38	e22	e4.2	e1.8
30	---	---	---	---	---	---	---	e3.2	e13	e11	e11	e1.8
31	---	---	---	---	---	---	---	e3.2	---	e6.8	e44	---
TOTAL	---	---	---	---	---	---	---	132.9	202.2	166.1	198.3	93.2
MEAN	---	---	---	---	---	---	---	4.29	6.74	5.36	6.40	3.11
MAX	---	---	---	---	---	---	---	6.1	38	22	44	10
MIN	---	---	---	---	---	---	---	3.2	2.1	2.0	2.0	1.8
AC-FT	---	---	---	---	---	---	---	264	401	329	393	185

e Estimated.