PROVISIONAL DATA SUBJECT TO REVISION

 03274000 GREAT MIAMI RIVER AT HAMILTON, OH
 LOCATION.--Lat 39°23'28", long 84°34'20", in NE 1/4 sec. 6, T.1 N., 
     R.3 E., Butler County, Hydrologic Unit 05080002, on right bank 
     1,000 ft downstream from Columbia Bridge at Hamilton, 3 mi downstream
     from Four Mile Creek, 4.3 m  upstream from Pleasant Run, and at mile 
     34.8.
 PERIOD OF RECORD.--January 1907 to June 1909 (fragmentary), January 1910 
     to September 1918, April 1927 to current year. Monthly discharge only 
     for some periods, published in WSP 1305. Gage-height records collected
     at site 0.7 mi upstream since 1911 are contained in reports of National
     Weather Service. Prior to October 1962, published as Miami River at
     Hamilton.
 REVISED RECORDS.--WSP 803: 1936. WSP 1908: Drainage area.
 REMARKS.--Some regulation at low flow by industrial plants upstream from
     station. Flood flow regulated by five retarding basins upstream from
     station beginning in 1920 (see REMARKS for station numbers 03271500
     and 03272000). The Miami and Erie Canal diverted water from the
     basin 1.7 mi upstream from station until Nov. 1, 1930, when the canal 
     was abandoned; amount of diversion not known. Water temperature data 
     collected at this site October 1950 to September 1951, October 1957 
     to September 1976.
 EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 352,000 cubic feet per
     second Mar. 26, 1913, gage height, 38.5 ft, site and datum then in use,
     computed by Miami Conservancy District.