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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
05536085 NB CHICAGO RIVER AT N PULASKI ROAD AT CHICAGO, IL
LOCATION - Lat 41°58'29", long 87°43'42" referenced to North American Datum of 1983, in NE 1/4 NE 1/4 SE 1/4 sec.10, T.40 N., R.13 E., Cook County, IL, Hydrologic Unit 07120003, near life ring station on upstream side of bridge on Pulaski road in Chicago, 1.5 mi upstream from North Shore Channel, and at mile 44.8.
DRAINAGE AREA - 112.4 mi².
REVISIONS HISTORY - Revisions: Gage datum was updated to 575.40 ft NAVD88 on January 30, 2023, based on a GNSS Level II survey using GEOID18.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: April 2018 to current.
STAGE: April 2018 to current.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: April 2018 to current.
STAGE: April 2018 to current.
GAGE - Water-stage recorder and satellite telemeter. Datum of gage is 575.40 ft. above NAVD of 1988.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS Central Midwest Water Science Center.
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,130 ft³/s, May 18, 2020, gage height, 17.90 ft, maximum gage height, 17.90 ft, May 18, 2020,; minimum, 3.60 ft³/s, July 23, 2022, gage height 10.67 ft. Minimum gage height 10.55 ft. July 4, 2022.
