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LOCATION.-- Lat 41°54'18", long 87°50'40" (NAD of 1927), in NW1/4NW1/4 sec. 2, T. 39 N., R. 12 E., Cook County, Hydrologic Unit 07120004, on downstream side of bridge on 9th Avenue, 0.3 mi east of Melrose Park. |
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DRAINAGE AREA.-- 11.2 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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PARTIAL RECORD: Annual maximum, water years 1961 to 1980. |
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GAGE.-- Crest-stage gage. Datum is 617.45 ft above NGVD of 1929 (617.16 ft NAVD 1988). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 752 ft3/sec, September 18, 1972, gage height, 3.57 ft. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Flood of October 19, 1954 reached a stage of 2.36 ft, discharge 547 ft3/s. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |