USGS Water-Year Summary 2021
08095300 Middle Bosque River near McGregor, TX
LOCATION - Lat 31°30'33", long 97°21'56" referenced to North American Datum of 1927, McLennan County, TX, Hydrologic Unit 12060203, on left downstream side of bridge on Farm Road 3047, 1,100 ft downstream from Pecan Creek, 5.0 mi upstream from mouth, and 5.2 mi northeast of McGregor.
DRAINAGE AREA - 182 mi².
PERIOD OF RECORD - Aug. 1959 to Sept. 1985 (daily mean discharge), Oct. 1985 to Sept. 2007 (peak discharges greater than base discharge), Oct. 2007 to current year (daily mean discharge).
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Dec. 1961 to Sept. 1964, Oct. 1997 to Sept. 2008.
BIOCHEMICAL DATA: Dec. 1961 to Sept. 1964, Oct. 1997 to Sept. 2008.
GAGE - Water-stage recorder and concrete control. Datum of gage is 530.51 ft above NGVD of 1929. Prior to Oct. 27, 1959, nonrecording gage at same site and datum. Satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of 1889, which reached a stage of 28.5 ft. A flood in 1957 reached a stage of 28.2 ft; and floods in 1913 and 1942 or 1943 reached a stage of about 28 ft, from information by local residents.