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Water-Year Summary for Site 05486490

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
05486490 Middle River near Indianola, IA
LOCATION - Lat 41°25'27", long 93°35'14" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 SW 1/4 sec.35, T.77 N., R.24 W., Warren County, IA, Hydrologic Unit 07100008, on right bank 10 ft downstream from bridge on 115th Avenue, 1.5 mi upstream from bridge on U.S. Highway 69, 4.6 mi northwest of Indianola, 0.4 mi upstream from Cavitt Creek, and 14.8 mi upstream from mouth. Gage was temporarily moved downstream 1.5 miles to HWY 65/69 bridge, due to construction of a new bridge at current site from May 24, 2017 to November 15, 2017.
DRAINAGE AREA - 489.4 mi².
REVISIONS HISTORY - WSP 1438: Drainage area. WSP 1508: 1940(M), 1941, 1944, 1946, 1949(M). WDR US-2008: Drainage area.
PERIOD OF RECORD - Discharge records from March 1940 to current year.
GAGE - Water-stage recorder. Datum of gage is 776.15 ft above National Geodetic Vertical Datum of 1929 (U.S. Army Corps of Engineers benchmark). Prior to June 11, 1946, June 9, 1947, to November 23, 1948, and September 8, 1951, to October 30, 1952, non-recording gage at site 1.6 mi downstream at datum 2.81 ft lower; June 11, 1946, to June 8, 1947, destroyed by flood; November 24, 1948, to September 7, 1951, and October 31, 1952, to September 30, 1962, water-stage recorder at site 1.6 mi downstream at datum 2.81 ft lower.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS IA Water Science Center.
PERIOD OF RECORD - Water years 1963-1967.
WATER TEMPERATURE: Daily instantaneous values collected in conjunction with suspended-sediment samples, October 1962 to September 1967.