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LOCATION.-- Lat 40°36'19", long 88°53'56" (NAD of 1927), in SW1/4SW1/4 sec.20, T.25 N., R.3 E., McLean County, Hydrologic Unit 07130004, on right bank 25 ft downstream from highway bridge, 3 mi north of Towanda, 5 mi east of Hudson, and at mile 8.3. |
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DRAINAGE AREA.-- 49.0 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: May 1958 to March 1983. |
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REVISED RECORDS.-- WDR IL-75-1: Drainage area. |
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GAGE.-- Water-stage recorder and steel-sheet piling control. Datum of gage is 723.65 ft above NGVD of 1929 (State Water Survey bench mark). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,600 ft3/s June 2, 1980, gage height, 11.70 ft, from floodmark; maximum gage height, 12.82 ft Mar. 4, 1979, backwater from ice; no flow for many days in most years. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |