LOCATION.--Lat 42°45'35.9", long 93°37'17.9"
referenced to North American Datum of 1927, in NW 1/4 NE 1/4 NE 1/4
sec.25, T.92 N., R.24 W., Wright County, IA, Hydrologic Unit
07080207, on left bank 10 ft downstream from bridge on County Highway
C38, 3.8 mi northwest of Rowan, 0.9 mi downstream from Drainage Ditch
123, 10.7 mi downstream from confluence of East and West Branches,
and 313.5 mi upstream from mouth. (map)
DRAINAGE AREA.--429 mi2.
SURFACE-WATER RECORDS
PERIOD OF RECORD.--Discharge records from October 1940 to
September 1976, June 1977 to current year.
REVISED RECORDS.--WSP 1308: 1942-43 (M). WSP 1438: Drainage area.
WDR IA-80-1: 1978.
GAGE.--Water-stage recorder. Datum of gage is 1,143.35 ft above
National Geodetic Vertical Datum of 1929. Prior to October 14, 1948,
non-recording gage at same site and datum.
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1958-1962, 2001-2004, 2009-2010,
2012.
PERIOD OF DAILY RECORD.--
WATER TEMPERATURE: Daily instantaneous values collected in
conjunction with suspended-sediment samples, October 1957 to
September 1962, records fragmentary.
SUSPENDED-SEDIMENT CONCENTRATION AND DISCHARGE: October 1957 to
September 1962.
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