USGS Water-Year Summary 2021
15515500 TANANA RIVER AT NENANA, AK
LOCATION - Lat 64°33'53.8", long 149°05'38.4" referenced to North American Datum of 1983, in SE 1/4 sec.14, T.4 S., R.8 W., Yukon-Koyukuk Division, AK, Hydrologic Unit 19080307, on left bank on east end of Alaska Railroad dock in Nenana, and 0.3 mi upstream from Nenana River.
DRAINAGE AREA - 25,560 mi². approximately.
- WSP 2136: Drainage area.
PERIOD OF RECORD - May 1962 to current year.
GAGE - Water-stage recorder. Datum of the gage is 343.71 ft. NAVD88. Prior to March 10, 1965, on right bank 280 ft downstream from railroad bridge 0.5 mi upstream at present datum. March 10, 1965 to March 23, 1968, non-recording gage on railroad bridge 0.5 mi upstream at present datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of May 1948 reached a stage of 15.9 ft, discharge, about 135,000 ft³/s, contained in reports of Corps of Engineers.
PERIOD OF RECORD - Water years 1954-57, 1963-64, 1966-75, 1978-1995, 2001 to August 2005, and May 2014 to current year.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: 1954 to 1956, and May 2014 to current year.
INSTRUMENTATION - Electronic water temperature recorder set for 15 minute recording interval.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum 19.6°C, June 19, 2015; minimum 0.0°C, on many days during winter and spring breakup periods.