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LOCATION.-- Lat 41°37'35", long 87°38'05" (NAD of 1927), in NW1/4 sec. 9, T. 36 N., R. 14 E., Cook County, Hydrologic Unit 07120003, at Illinois Central Railroad bridge at Harvey. |
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DRAINAGE AREA.-- 570 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1916 to September 1933. |
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GAGE.-- Staff gage. |
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REMARKS.-- Most of flow from upper 330 mi2 of drainage area is diverted to Lake Michigan above gage. Gage-height records furnished by Sanitary District of Chicago. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3,750 ft3/s Mar. 18, 1919, gage height, 10.28 ft; minimum discharge, 3.9 ft3/s July 24, 1932, gage height, 2.71 ft. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum stage known, 13.4 ft Mar. 6, 1908. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |