USGS Water-Year Summary 2021
03377500 WABASH RIVER AT MOUNT CARMEL, IL
LOCATION - Lat 38°23'54", long 87°45'23" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.28, T.1 S., R.12 W., Wabash County, IL, Hydrologic Unit 05120113, on upstream right side of SR64 bridge at Mount Carmel, 0.3 mi downstream from Patoka River, 0.2 mi downstream of Southern Railway bridge, and at mile 94.2.
- 28,635 mi². drainage area derived from the "Drainage Areas of Indiana Streams" publication website
- WDR IN-73-1: Drainage area.
PERIOD OF RECORD - January 1908 to September 1913 (gage heights only), October 1927 to current year. Gage-height records collected in this vicinity November 1874 to December 1878, are contained in files of Louisville office of the U.S. Army Corps of Engineers and since June 1884, are contained in reports of National Weather Service.
GAGE - Water-stage recorder. Datum of gage is 368.98 feet above the North American Vertical Datum of 1988. Formerly 369.46 ft above National Geodetic Vertical Datum of 1929.
Oct. 1, 1949, to Feb. 8, 1977, at datum 2.00 ft higher. See WSP 1725 for history of changes prior to Sept. 30, 1949.
EXTREMES OUTSIDE PERIOD OF RECORD - (1874-78, 1884 to 1985) Maximum discharge, 428,000 ft³/s Mar. 30, 1913, gage height, 33.0 ft, present site and datum.