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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.
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USGS Water-Year Summary 2024
06404998 GRACE COOLIDGE CREEK NEAR GAME LODGE, NEAR CUSTER, SD
LOCATION - Lat 43°45'40", long 103°21'49" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.26, T.3 S., R.6 E., Custer County, SD, Hydrologic Unit 10120109, on right bank 0.3 mi downstream from bridge on U.S. Highway 16A, 0.9 mi east of Game Lodge, 1.5 mi southwest of junction of State Highway 36 and U.S. Highway 16A, and 11.5 mi east of Custer.
DRAINAGE AREA - 26.8 mi².
REVISIONS HISTORY - WDR SD-88-1: 1988(M). WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1945 to July 1947, October 1976 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 4,107.04 ft above NAVD of 1988. From July 17, 1945, to July 31, 1947, nonrecording gage at site 1,800 ft upstream at different datum. Site 06405000 operated June 1967 to June 13, 1976, at site 500 ft downstream at same 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 Dec 1, 2020 to May 5, 2021 are considered fair and estimated discharges, which are poor. Considerable loss occurs to sinkholes downstream from gage and about 50 ft above the gage. Satellite data-collection platform at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 10, 1972, reached a stage of 10.35 ft, from floodmarks at site 06405000, 500 ft downstream from current location, discharge of 709 ft³/s from slope-area measurement of peak flow. Flood of June 15, 1976, reached a stage of 10.90 ft, from floodmarks at site 06405000, 500 ft downstream from current location, discharge of 980 ft³/s on basis of slope-area measurement of peak flow.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,030 ft³/s, from rating curve extended above 709 ft³/s, on basis of slope-area measurement of peak flow, Sept. 7, 1989, gage height, 10.84 ft, from floodmarks; minimum daily discharge, 0.00 ft³/s, June 5, 1977, no flow for some days in 1977, 1988, and 1989.
