09085000 ROARING FORK RIVER AT GLENWOOD SPRINGS, CO
LOCATION.--Lat 39°32'37", long 107°19'44", in SW14SE14 sec.9, T.6 S., R.89 W., Garfield County, Hydrologic Unit 14010004, on left bank at Glenwood Springs, 2,100 ft upstream from mouth.
DRAINAGE AREA.--1,451 mi2.
PERIOD OF RECORD.--October 1905 to September 1909, September 1910 to current year. Monthly discharge only for some periods, published in WSP 1313. Prior to October 1960, published as Roaring Fork at Glenwood Springs. Statistical summary computed for 1972 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09085000
REVISED RECORDS.--WSP 2124: Drainage area.
GAGE.--Water-stage recorder with satellite telemetry. Datum of gage is 5,720.73 ft above NGVD of 1929. Prior to Nov. 20, 1915, nonrecording gage on highway bridge 800 ft downstream, at different datum. Nov. 20, 1915 to Oct. 26, 1917, nonrecording gage at present site and datum.
REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions upstream from station for irrigation of about 35,000 acres. Transmountain diversions to Arkansas River basin through Busk-Ivanhoe tunnel since 1925, Twin Lakes tunnel since 1935, and Charles H. Boustead tunnel since 1972. Natural flow of stream affected by storage in Ruedi Reservoir on Fryingpan River (station 09080190) since May 1968.
a Average discharge for 65 years (water years 1906-09, 1911-71), 1368 ft3/s; 99,1100 acre-ft/yr, prior to diversion through Charles H. Boustead tunnel.
c Minimum daily discharge for period of record, 179 ft3/s, Jan 21, 1935; minimum discharge during the day of Jan 21, 1935, 145 ft3/s, gage height, 0.65 ft.