LOCATION.--Lat 41°24'33", long 91°17'25" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 SW 1/4 sec.2, T.76 N., R.4 W., Muscatine County, IA, Hydrologic Unit 07080206, on right bank 10 ft downstream from bridge on County Highway G28, 3.4 mi northeast of Conesville, 5.2 mi downstream from Wapsinonoc Creek, and 10.8 mi upstream from mouth of Cedar River. (map)

DRAINAGE AREA.--7,787 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD.--Discharge records from September 1939 to current year.

REVISED RECORDS.--WSP 1438: Drainage area. WSP 1708: 1956.

GAGE.--Water-stage recorder. Datum of gage is 581.95 ft above National Geodetic Vertical Datum of 1929. Prior to February 2, 1940, and April 11, 1952, to July 1, 1954, non-recording gage; February 2, 1940, to April 10, 1952, and July 2, 1954, to September 16, 1963, water-stage recorder at site 150 ft downstream at same datum.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 2008, 2012.

Advanced Hydrologic Prediction Service

U.S. Army Corps of Engineers - Rock Island District

National Streamflow Information Program