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LOCATION.-- Lat 41°49'20", long 87°49'15" (NAD of 1927), in SW1/4SW1/4 sec.36, T.39 N., R.12 E., Cook County, Hydrologic Unit 07120004, on left bank 400 ft downstream from bridge on Barry Point Road in Riverside, 500 ft downstream from Hoffman Dam, 4,000 ft downstream from Salt Creek, and at mile 44.3. |
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DRAINAGE AREA.-- 630 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1943 to current year. Monthly discharge only for some periods, published in WSP 1308. |
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STAGE: Water years 1994 to current year. |
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SURFACE-WATER QUALITY |
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CHEMICAL: Water years 1987-92 and 1999 to current year. |
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SEDIMENT: April 1979 to September 1982, January 2003 to current year. |
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MISCELLANEOUS: Contaminants in streambed sediments, August 1998; contaminants in fish tissue, August 1998; sediment concentration and particle size, water years 1998-2003. |
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BIOLOGICAL |
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BENTHIC MACROINVERTEBRATES: Water year 1999, and 2002. |
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FISH: Water years 1999-2000, and 2002-03. |
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HABITAT: Water years 1999, and 2002-03. |
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REVISED RECORDS.-- WSP 1174: 1944, 1948. WSP 1308: 1944(M). WDR IL-75-1: Drainage area. |
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GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, pumping sampler, and rain gage, and concrete dam. Datum of gage is 594.68 ft above NGVD of 1929. Prior to Nov. 27, 1946, nonrecording gage at bridge 400 ft upstream at same datum. |
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REMARKS.-- Occasional regulation by gates at Hoffman Dam. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 9,770 ft3/s, Aug. 15, 1987, gage height, 9.90 ft; no flow Aug. 22-24, 1962, and part of Sept. 5, 1968, Aug. 31, Oct. 7, 1974. |
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SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 297 mg/L Apr. 12, 1979; minimum daily mean, 3 mg/L Jan. 24, Feb. 1, 3, 4, 1982 |
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SUSPENDED-SEDIMENT LOADS: Maximum daily, 3,240 tons Apr. 12, 1979; minimum daily, 1.5 tons Feb. 3, 4, 1982. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Flood of Mar. 18, 1919, reached a discharge of 7,450 ft3/s, gage height, 9.43 ft., present datum, from information furnished by Metropolitan Water Reclamation District of Greater Chicago. |
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REMARKS FOR CURRENT YEAR.--Physical and geomorphic habitat data were collected as part of the National Water-Quality Assessment program (NAWQA) in the upper Illinois River Basin. The measures were collected according to Fitzpatrick and others, 1998. Reach A begins 492 ft. upstream of Joliet Rd. Bridge and continues upstream for 984 ft. |
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The following links list up to five tab-delimited text files containing habitat data collected at this site. An explanation of column headers in these files can be accessed at this link.
Reach -- General description of the sampled reach.
Geomorphic Channel Unit (GCU) -- Fluvial geomorphic descriptors of channel shape and stream velocity (for example pool, riffle, or run).
Transect -- Channel and bank measurements made along transects (cross sections) within each reach.
Channel features -- Measurements of bars, shelves, and islands at each transect (cross section).
Transect Points -- Channel and substrate measurements and observations at points along a transect (cross section).
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |