USGS Water-Year Summary for Site 07103980

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	Available Parameters
	00045 Precipitation(Sum)
	00060 Discharge(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

07103980 COTTONWOOD CREEK AT WOODMEN ROAD NEAR COLORADO SPRINGS, CO

LOCATION - Lat 38°56'22", long 104°44'26" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.11, T.13 S., R.66 W., El Paso County, CO, Hydrologic Unit 11020003, on right bank 100 ft downstream from Woodmen Road, 4.0 mi east of Interstate 25, 5.0 mi upstream from mouth, and 8.2 mi northeast of courthouse in Colorado Springs.

DRAINAGE AREA - 10.2 mi².

REVISIONS HISTORY - WDR CO-96-1: 1995 (M). WDR-US-2011: Drainage area. WDR-US-2007: 2003 (maximum daily precipitation).

SURFACE-WATER RECORDS

PERIOD OF RECORD - May 1992 to current year.

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 6,680 ft above NGVD of 1929, from topographic map. Prior to Apr. 13, 1999, at present site and datum. Apr. 13, 1999 to Nov. 29, 2009, at site 150 ft downstream at datum 10 ft lower.

REMARKS - Water year 2014; records fair except for estimated daily discharges, which are poor. Water year 2015; records fair except for flows above 100 ft³/s, and estimated daily discharges, which are poor. Water year 2016; records fair except for flows above 25 ft³/s, and estimated daily discharges, which are poor. Water year 2017; records poor. Water year 2018; records fair except for flows above 128.3 ft³/s, and estimated daily discharges, which are poor. Water year 2019; records fair except for flows above 128.3 ft³/s, and estimated daily discharges, which are poor. Water year 2020; records poor. Water year 2021; records poor. Water year 2022; records poor. Water year 2023; records poor. Natural flow of stream affected by erosion-control and livestock-watering reservoirs and groundwater withdrawals.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,500 ft³/s, Aug. 22, 2013, from rating curve extended above 23.8 ft³/s, on basis of slope-conveyance study at gage height 4.00 ft and runoff comparisons with nearby stations, gage height, 7.61 ft, from floodmark.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - April 2003 to current year (seasonal records only).

INSTRUMENTATION - Tipping-bucket rain gage with satellite telemetry.

EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation, 3.36 inches (estimated), Sept. 14, 2011.

REMARKS - Gage operated seasonally, March through October. Unless otherwise noted, records are not rated, and periods of missing record are not estimated. Water year 2014; estimated daily precipitation are less accurate than the rest of the published records. Water year 2015; estimated daily precipitation are less accurate than the rest of the published records.