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Water-Year Summary for Site 05437610

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00065 Gage height(Mean)  

Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022
LOCATION - Lat 42°22'08", long 89°03'31" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 SW 1/4 sec.18, T.45 N., R.2 E., Winnebago County, IL, Hydrologic Unit 07090005, at bridge on Latham Road/Ralston Road, 0.75 mi upstream from Willow Creek, 3.1 mi downstream from McDonald Creek, 9 mi upstream of Rockford (Fordham) Dam, and at mile 146.1.
DRAINAGE AREA - 6,476 mi².
REVISIONS HISTORY - Water years 2002 to 2019, datum incorrectly published as 700.00 ft above NGVD of 1929 (699.81 ft NAVD 1988). Datum of gage was 698.85 ft. NGVD 1929 (698.66 ft. NAVD 1988).
  STAGE: July 2002 to current.
  PARTIAL RECORD: Miscellaneous discharge measurements, water years 1927 and 2003 to

Water-stage recorder and phone telemeter.

Datum of gage is 698.742 ft NAVD 88 (698.942 ft above NGVD of 1929).

Prior to Mar. 23, 2019, the datum of gage was 698.85 ft above NGVD of 1929.

Water years 2002 to 2019, datum incorrectly published as 700.00 ft above NGVD of 1929 (699.81 ft NAVD 1988).

REMARKS - Stages regulated by power plant 10.3 mi. upstream of gage and by the operation of Fordham Dam 9.5 mi. downstream of gage.
EXTREMES FOR PERIOD OF RECORD - STAGE: Maximum gage height, 14.46 ft, March 17 and 18, 2019, minimum, 2.75 ft, July 13, 2005.