USGS Water-Year Summary 2018
04146063 SOUTH BRANCH FLINT RIVER NEAR COLUMBIAVILLE, MI
LOCATION - Lat 43°09'34", long 83°21'03" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.36, T.9 N., R.9 E., Lapeer County, MI, Hydrologic Unit 04080204, on right bank at upstream side of bridge on Columbiaville Road, 3.0 mi east of Columbiaville, and 3.2 mi upstream from confluence of North and South Branches.
DRAINAGE AREA - 221 mi².
- WDR MI-00-1: 1999 (M).
PERIOD OF RECORD - March 1980 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 765 ft above NGVD 29, from topographic map. Jan. 9, 1996 to Jan. 15, 1997, nonrecording gage at same site and datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,090 ft³/s, Sept. 9, 1985, gage height, 9.60 ft; maximum gage height, 9.61 ft, Feb. 26, 1985, backwater from ice; minimum discharge, 12 ft³/s, July 11, 1988.