USGS Water-Year Summary for Site 09019500

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	Available Parameters
	00010 Temperature, water(Min.,Max.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

09019500 COLORADO RIVER NEAR GRANBY, CO

LOCATION - Lat 40°07'15", long 105°54'00" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.22, T.2 N., R.76 W., Grand County, CO, Hydrologic Unit 14010001, on right bank 0.3 mi upstream from bridge on U.S. Highway 34, 1.3 mi upstream from Willow Creek, and 3.2 mi northeast of Granby.

DRAINAGE AREA - 323 mi².

REVISIONS HISTORY - WSP 2124: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1907 to September 1911 (published as Grand River near Granby), October 1933 to September 1953. May 1961 to current year (irrigation season only). Monthly discharge only for some periods, published in WSP 1313.

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 7,960 ft above NGVD of 1929, from topographic map. June 10, 1908 to Sept. 30, 1911, and May 12 to June 10, 1934, nonrecording gage, at site 300 ft upstream at different datums. June 11, 1934 to Sept. 30, 1953, water-stage recorder at present site and datum.

REMARKS - Water year 2014; no estimated daily discharges. Records good. Water year 2015; no estimated daily discharges. Records good. Water year 2016; records good except for estimated daily discharges, which are poor. Water year 2017; no estimated daily discharges. Records good. Water year 2018; no estimated daily discharges. Records good. Water year 2019; no estimated daily discharges. Records good. Water year 2020; no estimated daily discharges. Records good. Water year 2021; no estimated daily discharges. Records good. Water year 2022; records good except for estimated daily discharges, which are poor. Water year 2023; no estimated daily discharges. Records good. Flow regulated by Lake Granby (station 09018500) since Sept. 13, 1949. Several diversions for irrigation of hay meadows upstream from station. Transmountain diversions upstream from station by Eureka and Grand River ditches and Alva B. Adams Tunnel.