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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
06809210 East Nishnabotna River near Atlantic, IA
LOCATION - Lat 41°20'45.6", long 95°04'36.7" referenced to North American Datum of 1983, in NE 1/4 NW 1/4 NW 1/4 sec.35, T.76 N., R.37 W., Cass County, IA, Hydrologic Unit 10240003, on left bank on downstream side of bridge on Lansing Road, 5.2 mi southwest of intersection of U.S. Highway 6 and State Highway 83 in Atlantic, 1.6 mi upstream from Turkey Creek, 74.3 mi upstream from confluence with West Nishnabotna River, and 89.9 mi upstream from mouth of Nishnabotna River.
DRAINAGE AREA - 436 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Discharge records from October 1960 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,106.06 ft above North American Vertical Datum of 1988. Prior to October 1, 1970, at site 2.2 mi upstream at datum 5.00 ft higher.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS IA Water Science Center.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of July 2, 1958, reached a stage of 22.49 ft, from high-water mark, discharge 34,200 ft³/s.
