LOCATION.--Lat 41°51'33", long 92°16'40"
referenced to North American Datum of 1927, in SW 1/4 NW 1/4 NW 1/4
sec.5, T.81 N., R.12 W., Iowa County, IA, Hydrologic Unit 07080208,
on right bank 5 ft downstream from bridge on State Highway 21, 1.7 mi
south of Belle Plaine, 1.2 mi downstream from Salt Creek, and 0.9 mi
downstream from Walnut Creek. (map)
DRAINAGE AREA.--2,455 mi2.
SURFACE-WATER RECORDS
PERIOD OF RECORD.--Discharge records from September 1939 to
September 1959, October 2014 to current year.
REVISED RECORDS.--WSP 1438: Drainage area. WSP 1558: 1940(M),
1941.
GAGE.--Water-stage recorder. Datum of gage is 749.76 ft above
North American Vertical Datum of 1988. Prior to March 13, 1940,
non-recording gage at same site and datum.
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