USGS Water-Year Summary 2021
05481950 Beaver Creek near Grimes, IA
LOCATION - Lat 41°41'18", long 93°44'07" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 SW 1/4 sec.35, T.80 N., R.25 W., Polk County, IA, Hydrologic Unit 07100004, on left bank 10 ft upstream from bridge on Northwest 70th Avenue in Johnston, 2.5 mi east of Grimes, 0.5 mi downstream from Little Beaver Creek, and 6.3 mi upstream from mouth.
DRAINAGE AREA - 358 mi².
- WDR IA-77-1: 1974(P). WDR IA-95-1: Location.
PERIOD OF RECORD - Discharge records from April 1960 to current year.
GAGE - Water-stage recorder. Datum of gage is 806.98 ft above National Geodetic Vertical Datum of 1929. Prior to August 31, 1966, non-recording gage at same site and datum.
PERIOD OF RECORD - Water years 2008, 2012.