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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
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USGS Water-Year Summary 2024
05466000 EDWARDS RIVER NEAR ORION, IL
LOCATION - Lat 41°16'20.09", long 90°22'38.97" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 sec.21, T.15 N., R.1 E., Henry County, IL, Hydrologic Unit 07080104, on left bank at downstream side of bridge on U.S. Highway 150, 1.5 mi. north of Opheim, 5.5 mi. south of Orion, and at mile 51.5.
DRAINAGE AREA - 155 mi². (Revised WDR IL-75-1).
REVISIONS HISTORY - WSP 1175: 1947(P). WSP 1508: 1942. WDR IL-75-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1940 to current. Monthly discharge only for some
periods, published in WSP 1308.
STAGE: Water years 1994 to current.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1940 to current. Monthly discharge only for some
periods, published in WSP 1308.
STAGE: Water years 1994 to current.
GAGE -
Water-stage recorder, satellite telemeter and crest-stage gage.
Datum of gage is 653.47 ft. above NAVD of 1988. Prior to Apr. 4, 1941, and Apr. 8 to Nov. 11, 1981, nonrecording gage at same site and datum.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS IL Water Science Center.
EXTREMES OUTSIDE PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE:
Flood of August 1924 reached a stage of 20.2 ft, from floodmarks.
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE:
Maximum discharge, 8,910 ft³/s, Feb. 19, 1951, gage height, 13.41 ft, from floodmark; maximum gage height, 16.35 ft, Feb 20, 2014, ice jam, discharge 5,000 ft³/s estimated; minimum, 0.0 ft³/s, several days in Sept. 2023.
