USGS Water-Year Summary 2020
05426067 BARK RIVER AT NAGAWICKA ROAD AT DELAFIELD, WI
LOCATION - Lat 43°05'16", long 88°22'34" referenced to North American Datum of 1983, in NE 1/4 NW 1/4 sec.9, T.7 N., R.18 E., Waukesha County, WI, Hydrologic Unit 07090001, on left bank 20 ft upstream from Nagawicka Road in Delafield.
DRAINAGE AREA - 35.9 mi².
PERIOD OF RECORD - November 2002 to current year.
GAGE - Water-stage recorder and crest stage gage. Elevation of gage is 895 ft (NAVD88), from map.