USGS Water-Year Summary 2023
04102776 Middle Branch Black River near South Haven, MI
LOCATION - Lat 42°25'57", long 86°12'25" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.32, T.1 N., R.16 W., Allegan County, MI, Hydrologic Unit 04050002, on left bank 10 ft downstream from bridge on 68th Street, 4.0 mi northeast of South Haven.
DRAINAGE AREA - 83 mi².
REVISIONS HISTORY - Revised maximum gage-heights and discharges for water years 2012-16.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1994 to September 2011 (operated as a continuous-record station), water year 2012 to current year.
GAGE - Crest-stage gage. Elevation of gage is 590 ft above NGVD 29, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 4,340 ft³/s, June 21, 1997, from rating curve extended above 1,400 ft³/s, gage-height, 12.85 ft; mimimum (water years 1995-2011), 14 ft³/s, part or all of each day Sept. 4, 7-14, 2005.