LOCATION.-- Lat 39°37'11", long 88°36'17" (NAD of 1927), in NE1/4NE1/4 sec.34, T.14N., R.5E., Moultrie County, Hydrologic Unit 07140201, on right bank at upstream side of highway bridge, 0.4 mi upstream from Chicago & Eastern Illinois Railroad, 0.8 mi north of Sullivan, and at mile 5.3. | |
DRAINAGE AREA.-- 8.05 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: July 1950 to September 1982. | |
SURFACE-WATER QUALITY | |
CHEMICAL: Water years 1978-90. | |
REVISED RECORDS.-- WDR IL-75-1: Drainage area. | |
GAGE.-- Water-stage recorder and concrete control. Datum of gage is 624.36 ft above NGVD of 1929. Prior to Sept. 15, 1964, at site 40 ft downstream at same datum. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,460 ft3/s May 19, 1974, gage height, 12.06 ft, from rating curve extended above 660 ft3/s on basis of velocity-area study; no flow for many days in most years. | |