USGS Water-Year Summary 2022
05502000 BEAR CREEK AT HANNIBAL, MO
LOCATION - Lat 39°40'41.7", long 91°24'34.6" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.01, T.56 N., R.5 W., Ralls County, MO, Hydrologic Unit 07110004, at bridge on Industrial Drive, on right downstream bank, and 4.65 mi upstream from mouth.
DRAINAGE AREA - 31 mi².
REVISIONS HISTORY - WSP 1115: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct 1938 to Sep 1942, Oct 1947 to current year. Monthly discharge only for some periods published in WSP 1308. Oct 1936 to Nov 1938 (gage-height and discharge measurements only) in reports of the Missouri Department of Natural Resources.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 508.47 ft above North American Vertical Datum of 1988. Prior to Mar 26, 1948, nonrecording gage; Mar 26, 1948, to Sep 30, 1953, water-stage recorder at datum 2.00 ft higher; Oct 1, 1953, to Oct 30, 1961, at present datum; Oct 31, 1961, to Sep 5, 1972, water-stage recorder 400 ft downstream at present datum; Sep 6, 1972, to Jul 2, 1986, water-stage recorder 525 ft upstream at present datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 6,500 ft³/s, Aug 3, 1957; gage height, 14.05 ft.