USGS Water-Year Summary 2024
05452500 Iowa River near Belle Plaine, IA
LOCATION - Lat 41°51'32.6", long 92°16'40.5" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 NW 1/4 sec.05, 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.
DRAINAGE AREA - 2,455 mi².
REVISIONS HISTORY - WSP 1438: Drainage area. WSP 1558: 1940(M), 1941.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Discharge records from September 1939 to September 1959, October 2014 to current year.
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.