USGS Water-Year Summary 2021
06884025 Little Blue River at Hollenberg, KS
LOCATION - Lat 39°58'49", long 97°00'17" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 sec.8, T.1 S., R.4 E., Washington County, KS, Hydrologic Unit 10270207, on right bank just downstream from bridge on county road, 0.6 mi west of Hollenberg, 1.8 mi downstream from Nebraska-Kansas State line, and at mile 43.1.
DRAINAGE AREA - 2,752 mi².
PERIOD OF RECORD - March 1973 to February 1974 (discharge measurements only), March 1974 to current year.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 1,216.10 ft above sea level.
EXTREMES OUTSIDE PERIOD OF RECORD - A gage height of 23.07 ft, present datum, from floodmark, discharge not determined, occurred October 12, 1973.
EXTREMES FOR PERIOD OF RECORD
Maximum peak flow, 59,200 ft³/s, May 7, 2015, gage height, 22.97 ft, site and datum then in use.