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Water-Year Summary for Site 06438500

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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
06438500 CHEYENNE RIVER NEAR PLAINVIEW, SD
LOCATION - Lat 44°31'46", long 101°55'47" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 NE 1/4 sec.34, T.7 N., R.18 E., Ziebach County, SD, Hydrologic Unit 10120112, on SD Highway 34 and 73 bridge, 10.5 mi south of Howes.
DRAINAGE AREA - 21,351 mi² of which 11 mi² probably is noncontributing.
REVISIONS HISTORY - WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct. 1950 to Sept. 1981, Oct. 1994 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,848.70 ft above North American Vertical Datum of 1988 (NAVD88). Prior to conversion to NAVD88 datum was published as 1,868 ft above NGVD of 1929, from topographic map. Prior to Oct. 1994 at site 3 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 estimated discharges, which are poor, unless otherwise noted. Flows regulated by: Angostura Dam, 167 mi upstream on the Cheyenne River (see station 06401000) since October 1949 significantly affect peak flows; Pactola Reservoir, 25.4 mi upstream from Rapid City (see station 06411000) since June 1963; Keyhole Reservoir (see station 06427000) near Moorcroft, WY, since Oct. 25, 1952; and Belle Fourche Reservoir near Belle Fourche (see station 06435000) since May 1910. Flow also affected by diversions for irrigation of about 70,000 acres and return flow from irrigated areas. Satellite data-collection platform at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood late in May 1920 reached a stage of about 17.5 ft, previous datum, and flood in May 1927 reached a stage of about 14 ft, previous datum, from information by local residents.
EXTREMES FOR PERIOD OF RECORD - Minimum daily discharge, 0.00 ft³/s, Dec. 14, 19-21, 1961.