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USGS Water-Year Summary 2024
03375500 PATOKA RIVER AT JASPER, IN
LOCATION - Lat 38°24'49", long 86°52'36" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 sec.20, T.1 S., R.4 W., Dubois County, IN, Hydrologic Unit 05120209, on left bank 0.3 mi upstream from unnamed outlet of Idlewild Lake, 1.2 mi downstream from county road bridge, 1.2 mi downstream from Beaver Creek, 3.3 mi northeast of Jasper, and at mile 91.5.
DRAINAGE AREA - 262 mi².
REVISIONS HISTORY - WSP 1909: 1958. WSP 2109: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 1947 to current year.
GAGE - Water-stage recorder. Datum of gage is 445.22 feet above the North American Vertical Datum of 1988 or 446.00 ft above National Geodetic Vertical Datum of 1929 (levels by State of Indiana, Department of Natural Resources). Nonrecording gage at bridge 5.6 mi downstream, used for high-water periods when flow exceeds about 2,500 ft³/s, at datum 0.15 ft lower. Prior to Sept. 18, 1956, nonrecording gage at bridge 5.6 mi downstream at datum 0.15 ft lower.
REMARKS - Flow regulated by Beaver Creek Reservoir beginning Oct. 11, 1955, and by Patoka Lake beginning Feb. 13, 1978.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in March 1913 reached a stage of 15.9 ft at downstream site, from floodmark furnished by local residents, discharge 16,000 ft³/s.
