USGS Water-Year Summary 2024

15493000 CHENA RIVER NEAR TWO RIVERS, AK

LOCATION - Lat 64°54'07.1", long 146°21'40.8" referenced to North American Datum of 1983, in NE 1/4 sec.20, T.1 N., R.7 E., Fairbanks North Star Borough, AK, Hydrologic Unit 19080306, (Big Delta D-5 quad), on left bank about 200 ft upstream from bridge at mi 39.5 on the Chena Hot Springs Highway, 15 mi upstream from South Fork Chena River, 22 mi east of Two Rivers, and 41 mi east of Fairbanks.

DRAINAGE AREA - 934 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1967 to current year.

GAGE - Water-stage recorder. Datum of the gage is 725.91  ft. NAVD88, based on US Army Corps of Engineers survey June 28, 2017. Prior to April 25, 1994, water stage recorder at site 2.5 mi downstream at datum of 700 ft NGVD29.

REMARKS - GOES satellite telemetry at station.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of August 13, 1967 reached a stage of 26.60 ft at site and datum of gage in use prior to April 25, 1994, from floodmarks, discharge not determined.

EXTREMES FOR PERIOD OF RECORD - 20,000 cfs with an associated gage height of 22.04 ft on June 3, 1992 at site and datum of gage in use prior to April 25, 1994.

WATER-QUALITY RECORDS

PERIOD OF RECORD - October 2013 to September 2021 and August 2022 to current year.

INSTRUMENTATION - Electronic water temperature recorder set for 15 minute recording interval.

EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 14.8°C July 6, 2019; minimum, 0.0°C on many days during fall, winter and spring breakup.