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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
06411500 RAPID CREEK BELOW PACTOLA DAM, SD
LOCATION - Lat 44°04'36", long 103°28'54" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.02, T.1 N., R.5 E., Pennington County, SD, Hydrologic Unit 10120110, on right bank 2,000 ft downstream from Pactola Dam, 3.9 mi upstream from Deer Creek, and 13.0 mi west of Rapid City.
DRAINAGE AREA - 321 mi².
REVISIONS HISTORY - WSP 1309: 1931(M). WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1928 to September 1932 (combined records of Creek and Dakota Power and Light Co. flume), July 1946 to current year. Prior to October 1953, published as "near Pactola." Monthly discharge only for some periods, published in WSP 1309.
GAGE - Water-stage recorder and concrete control since Oct. 16, 1962. Datum of gage is 4,407.82 ft above NAVD of 1988. Apr. 19, 1929, to Jun. 30, 1932, nonrecording gage at site 3,500 ft upstream at different datum. Jul. 24, 1946, to Aug. 24, 1947, nonrecording gage and Aug. 25, 1947, to Nov. 18, 1953, water-stage recorder, at site 2.0 mi upstream at different datum.
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 May 9 to Aug. 5, 2019 which are fair, and estimated discharges, which are poor, unless otherwise noted. Flow regulated by dam on Castle Creek since Dec. 3, 1945, and completely regulated by Pactola Dam 2,000 ft upstream since Aug. 22, 1956 (reservoir filled from August 1956 to June 1963). Maximum discharge prior to Sept. 30, 1963, 2,170 ft³/s, May 22, 1952, gage height, 6.74 ft, site and datum then in use; minimum daily discharge, 0.0 ft³/s, Oct. 11-17, 1962. Satellite data-collection platform at station.
