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Station operated in cooperation with the Miami Conservancy District.
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03270000 Mad River near Dayton, OH
LOCATION.--Lat 39°47'50", long 84°05'19", in SW 1/4 sec. 7, R. 8, T.2,
Green County, Hydrologic Unit 05080001, on left bank in retarding basin
300 ft upstream from Huffman Dam, 2.3 mi downstream from Mud Run, 6.2 mi
northeast of Dayton and at mile 6.1. Water-quality sampling site was on
left bank 900 ft downstream.
DRAINAGE AREA.--635 mi².
PERIOD OF RECORD.--October 1914 to current year. Monthly discharge only for
some periods, published in WSP 1305.
REVISED RECORDS.--WSP 453: 1915. WSP 743: 1929-32. WSP 1305: 1916(M), 1925(M)
1930-32(M). WSP 1908: Drainage area. WDR-OH-82-1: 1980.
GAGE.--Water-stage recorder. Datum of gage is 777.06 ft above sea level. Jan.
21, 1959, to Dec. 14, 1967, at site 900 ft downstream, at datum 77.01 ft
lower. See WSP 1725 for history of changes prior to Jan. 21, 1959.
Water-quality data collected at this site 1947-1948, 1962-1963, 1966-1980.
REMARKS.--Flood flows affected by backwater from Huffman retarding dam
beginning in 1921, some regulation by C. J. Brown Reservoir 26 mi upstream
on Buck Creek since 1974. Also see REMARKS for station 03269500.
COOPERATION.--Base data furnished by Miami Conservancy District.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of March 25, 1913, reached a stage
of 14.0 ft, original site and datum; discharge 75,700 cubic feet per
second, computed by Miami Conservancy District.
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