USGS Water-Year Summary 2020
02303330 HILLSBOROUGH RIVER AT MORRIS BRIDGE NEAR THONOTOSASSA, FL.
LOCATION - Lat 28°05'55", long 82°18'41" referenced to North American Datum of 1983, in NW 1/4 sec.33, T.27 S., R.20 E., Hillsborough County, FL, Hydrologic Unit 03100205, on downstream side of bridge on State Highway 579, 2.9 mi north of Thonotosassa, 3.4 mi upstream from Trout Creek, and 29 mi upstream from mouth.
DRAINAGE AREA - 375 mi².
PERIOD OF RECORD - Prior to April 1964 (miscellaneous discharge measurements only); April 1964 to April 1965 (fragmentary); May 1965 to September 1968 (gage heights only); October 1968 to June 1972 (gage heights and miscellaneous discharge measurements); July 1972 to current year.
GAGE - Water-stage recorder. Datum of gage is National Geodetic Vertical Datum of 1929. Prior to Oct. 16, 1972, nonrecording gage at same site and datum.
COOPERATION - This gage is monitored in cooperation with Southwest Florida Water Management District.
PERIOD OF RECORD - October 2002 to current year.
INSTRUMENTATION - A 6-inch diameter, tipping bucket precipitation gage, 15-minute interval, mounted on 2-inch diameter pipe, 6 ft above gage platform.
PERIOD OF RECORD - Water years 1967-83, 1992 to September 2011 (discontinued).