USGS Water-Year Summary 2021
06807410 West Nishnabotna River at Hancock, IA
LOCATION - Lat 41°23'24", long 95°22'17" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 NE 1/4 sec.18, T.76 N., R.39 W., Pottawattamie County, IA, Hydrologic Unit 10240002, on right bank on upstream side of bridge on County Highway G30, at western edge of Hancock, 3.0 mi downstream from Jim Creek, 60.1 mi upstream from confluence with East Nishnabotna River, and 75.7 mi upstream from mouth of Nishnabotna River.
DRAINAGE AREA - 609 mi².
PERIOD OF RECORD - Discharge records from October 1959 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,085.83 ft above National Geodetic Vertical Datum of 1929. Prior to September 15, 1980, on downstream end of right bridge pier at same datum.