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Water-Year Summary for Site 03399800

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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.
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Available Parameters
00060 Discharge(Mean)  

Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022
LOCATION - Lat 37°09'33", long 88°25'38" referenced to North American Datum of 1927, Pope County, IL, Hydrologic Unit 05140203,

at Smithland Dam, 1.1 miles upstream from Cumberland Island, 1.8 miles northwest of Smithland, and at mile 919.0.


DRAINAGE AREA - 144,000 mi².
REVISIONS HISTORY - Discharge revised for 7/16/16 to 1/8/18.
PERIOD OF RECORD - October 1993 to current year.
GAGE - Water-stage recorders with telemetry. Datum of HEADWATER is 311.03 feet above NAVD of 1988 and 311.22 ft above NGVD of 1929. Datum of TAILWATER gage 0.8 miles downstream is 289.09 feet above NAVD of 1988 and 289.28 ft above NGVD of 1929.
COOPERATION - U.S. Army Corps of Engineers, Louisville District.
REMARKS - Records fair except for estimated daily discharges which are poor. Discharge computed from tailwater elevation, head, gate openings, and lockages. Flow regulated by Ohio River system of locks, dams, and reservoirs upstream from station.