USGS Water-Year Summary 2018
04101000 ST. JOSEPH RIVER AT ELKHART, IN
LOCATION - Lat 41°41'30", long 85°58'30" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.05, T.37 N., R.5 E., Elkhart County, IN, Hydrologic Unit 04050001, on left bank 30 ft upstream from Main Street bridge located at the intersection of Main Street and Pottawatomi Dr. in Elkhart, 370 ft downstream from mouth of Elkhart River, 2,170 ft downstream from mouth of Christiana Creek, and 0.53 mile downstream from Elkhart Hydroelectric Plant.
DRAINAGE AREA - 3,370 mi². drainage area derived from the "Drainage Areas of Indiana Streams" publication
- WSP 2111: Drainage area.
PERIOD OF RECORD - August 1947 to current year. Gage heights at site 0.8 mi downstream at different datum from September 1924 to March 1926 are available from the district office.
GAGE - Water-stage recorder. Datum of gage is 699.55 feet above the North American Vertical Datum of 1988.