USGS Water-Year Summary 2022
08095200 North Bosque River at Valley Mills, TX
LOCATION - Lat 31°40'10", long 97°28'09" referenced to North American Datum of 1927, Bosque County, TX, Hydrologic Unit 12060204, on right bank at downstream side of bridge on Farm Road 56, about 0.8 mi downstream from Thompson Hollow, 0.8 mi north of intersection of State Highway 6 and Farm Road 56 in Valley Mills, and 28.0 mi upstream from mouth.
DRAINAGE AREA - 1,146 mi².
- WDR TX-76-2: Drainage area.
PERIOD OF RECORD - Aug. 1959 to Sept. 2005, Oct. 2007 to current year (daily mean discharge), Oct. 2005 to Sept. 2007 (peak discharges greater than base discharge).
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Oct. 1980 to Aug. 1982, Oct. 1997 to Sept. 2008.
BIOCHEMICAL DATA: Oct. 1980 to Aug. 1982, Oct. 1997 to Sept. 2008.
RADIOCHEMICAL DATA: Feb. 1981 to June 1981.
Water-stage recorder. Satellite telemetry at station.
Datum of gage: 524.23 ft NAVD88 based on a Level 2 Static GNSS survey processed through OPUS, Ref Frame NAD83 (2011)(EPOCH:2010.0000) ITRF2014 (EPOCH:2022.8351) and Geoid 18. The survey was completed on November 1st, 2022, while occupying a TRM referenced to local datum via differential levels.
Prior to 11/1/2022, the datum of the gage was 524.55 ft NGVD29.
Prior to Dec. 29, 1959, nonrecording gage at same site and datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since 1868, flood in May 1908 reached a stage of 43 ft. Floods in Sept. 1936 and Apr. 1945 reached a stage of about 38 ft, from information by local residents.