Station list
07022000 MISSISSIPPI RIVER AT THEBES, IL
LOCATION.--Lat 37°13'00", long 89°27'50", in NW ¼ sec.17, T.15 S., R.3 W., Alexander County, Hydrologic Unit
07140105, near center span on downstream side of railroad bridge at Thebes, 5.0 mi downstream from Headwater
Diversion Channel, and at mile 43.7 above Ohio River.
DRAINAGE AREA.--713,200 mi2, approximately.
PERIOD OF RECORD.--
DISCHARGE: October 1932 to current year. Monthly discharge only for some periods, published in WSP 1311. Prior
to April 1941, published as "at Cape Girardeau, Mo".
GAGE HEIGHT: March 1933 to February 1938 and October 1939 to current year in reports of the U.S. Geological
Survey. Prior to April 1941, published as "at Cape Girardeau, Mo". Since November 1878, under name of "at
Grays Point" in files of the U.S. Army Corps of Engineers; January 1879 to May of 1896, published as "at
Grays Point"; since May 1896, published as "at Cape Girardeau" in reports of the Mississippi River Commission
February 1891 to February 1894; and since 1904, published as "at Cape Girardeau" in reports of the National
Weather Service.
REVISED RECORDS.--WSP 1341: 1844(M). WDR MO-76-1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 300.00 ft above sea level. Mar. 17, 1933, to Dec. 21 1934,
nonrecording gage; Dec. 22, 1934, to Apr. 4, 1941, water-stage recorder, at site 8.2 mi upstream at datum 4.65
ft higher; Apr. 5, 1941, to Sept. 30, 1941, nonrecording gage at present site and datum; Oct. 1, 1941, to Oct.
11, 1943, at datum 0.07 ft higher. Prior to Apr. 5, 1941, various auxiliary gages used. Since Oct. 1, 1943,
former gage at Cape Girardeau used as auxiliary gage.
REMARKS.--No estimated daily discharge. Water-discharge records good. Natural flow of stream affected by many
reservoirs and navigation dams in upper the Mississippi River Basin and by many reservoirs and diversions for
irrigation in the Missouri River Basin. U.S. Army Corps of Engineers satellite telemeter and telemark at
station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of July 4, 1844, reached an elevation of 345.14 ft, present datum, at
Grays Point, from floodmarks, discharge, 1,075,000 ft3/s, computed by the U.S. Army Corps of Engineers.