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Water-Year Summary for Site 06412500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Mean)  

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

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USGS Water-Year Summary 2023
06412500 RAPID CREEK ABOVE CANYON LAKE, NEAR RAPID CITY, SD
LOCATION - Lat 44°03'10", long 103°18'41" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 NW 1/4 sec.17, T.1 N., R.7 E., Pennington County, SD, Hydrologic Unit 10120110, on left bank between bridges on State Highway 44, at city limits of Rapid City, and 2.9 mi downstream from Victoria Creek.
DRAINAGE AREA - 374 mi².
REVISIONS HISTORY - SD WDR 2009: 1998. WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1946 to current year. Low-flow records not equivalent prior to Oct. 1, 1991, because of channel loss between sites.
GAGE - Water-stage recorder and concrete broad-crested V-notch weir. Datum of gage is 3,401.20 ft above NAVD of 1988. Prior to conversion to NAVD88 datum, datum of gage was published as 3,398.17 ft above NGVD of 1929. Prior to Oct. 6, 1947, nonrecording gage, Oct. 6, 1947, to Nov. 2, 1967, and Oct. 1, 1968, to Sept. 30, 1976, water-stage recorder all at datum 9.25 ft higher. Nov. 3, 1967, to Sept. 30, 1968, nonrecording gage at site 0.1 mi downstream at datum 6.13 ft higher. Oct. 1, 1968, to Oct. 1, 1989, at datum 7.22 ft higher. Prior to Oct. 1, 1991, at site 0.1 mi upstream at datum 7.25 ft higher.
REMARKS - Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good except for Jun. 21, 2018 to Aug. 31, 2018, and May 18, 2019 to Aug. 6, 2019,  which are fair, and estimated discharges, which are poor, unless otherwise noted. Flow regulated by Deerfield Reservoir since December 1945 and by Pactola Dam 21.0 mi upstream since August 1956 (reservoir filled from August 1956 to June 1963). Satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge prior to Sept. 30, 1963, 2,600 ft³/s, May 23, 1952, gage height 10.08 ft, site and datum then in use. Maximum discharge since Sept. 30, 1963, 31,200 ft³/s, Jun. 9, 1972, from rating curve extended above 1,300 ft³/s, on basis of slope-area measurement of peak flow, gage height 15.77 ft, from floodmarks, site and datum then in use; minimum daily discharge, 0.00 ft³/s, Dec. 12, 1990, no flow for many days in 1991 water year.