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LOCATION.-- Lat 40°01'13", long 90°26'12" (NAD of 1927), in NE1/4 sec. 15, T. 18 N., R. 12 W., Cass County, Hydrologic Unit 07130003, at highway bridge on State Street in Beardstown, 9.5 mi downstream from Sangamon River. Auxiliary gage at the upstream side of LaGrange Lock & Dam. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1920 to September 1938. |
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STAGE: Water years 1878 to 1904 published in House Document 263, Fifty-ninth Congress. Water years 1905 to 1921 available from U.S. Weather Service Reports. |
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GAGE.-- Staff gage. Datum of gage is 419.89 ft above NGVD of 1929 (419.52 ft NAVD 1988). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge observed, 105,000 ft3/s on Oct. 9, 1926; maximum gage height observed, 26.25 ft Oct. 12, 1926; minimum discharge observed, 9,140 ft3/s July 8-14, 1936, gage height, 7.4 feet. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge known, about 115,000 ft3/s on Apr. 4, 1904 (gage height, 20.0 ft). Maximum recorded stage, 21.8 ft, April 5,1913 (discharge not determined). Flood of 1844 reached a stage of 22.2 ft. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |