USGS Water-Year Summary 2022
05437641 ROCK RIVER AT AUBURN STREET AT ROCKFORD, IL
LOCATION - Lat 42°17'19.44", long 89°03'51.88" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 NE 1/4 sec.13, T.44 N., R.1 E., Winnebago County, IL, Hydrologic Unit 07090005, at bridge on Auburn St., 700 ft. downstream from Spring Creek, 2.4 mi upstream of Rockford (Fordham) Dam, and at mile 139.0.
DRAINAGE AREA - 6,528 mi².
- Revisions: Gage datum was updated to 699.72 ft NAVD88 on June 14, 2022, as determined by a GNSS Level II survey.
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
STAGE: August 2002 to current.
Water-stage recorder and phone telemeter.
Datum of gage is 699.72 ft. above NAVD 88.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 7.43 ft., March 17 and 18, 2019; minimum, 1.18 ft., January 9, 2020.