USGS Water-Year Summary 2020
03302800 BLUE RIVER AT FREDERICKSBURG, IN
LOCATION - Lat 38°26'02", long 86°11'30" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.16, T.1 S., R.3 E., Washington County, IN, Hydrologic Unit 05140104, on downstream side of bridge on U.S. Highway 150 at Fredericksburg, 0.5 mi downstream from South Fork Blue River, and at mile 57.1.
DRAINAGE AREA - 283 mi² of which 76.9 mi² probably is noncontributing.
PERIOD OF RECORD - June 1968 to current year.
GAGE - Water-stage recorder. Datum of gage is 590.00 ft above National Geodetic Vertical Datum of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Jan. 21, 1959, reached a stage of 29.20 ft, from floodmark, on left upstream wingwall.