USGS Water-Year Summary 2021
15290000 LITTLE SUSITNA RIVER NEAR PALMER, AK
LOCATION - Lat 61°42'37", long 149°13'47" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.26, T.19 N., R.1 E., Matanuska-Susitna Borough, AK, Hydrologic Unit 19020505, (Anchorage C-6 NW quad), on right bank 100 ft downstream from highway bridge on Wasilla-Fishhook Road, 1.5 mi north of road junction, 1.8 mi downstream from unnamed tributary, and 8 mi northwest of Palmer. Prior to October 1, 1991 at site 60 ft upstream.
DRAINAGE AREA - 62 mi².
- WDR AK-2007-1: 2006(peak stage only)
PERIOD OF RECORD - July 1948 to current year. Low-flow records not equivalent prior to January 1962 because most measurements below 300 ft³/s were made at site 3.4 miles downstream.
GAGE - Water-stage recorder. Gage height datum conversion to the NAVD88 datum for this streamgage was completed in 2017. To convert from gage datum to NAVD88 Feet add 921.03 feet to the current gage datum. Prior to August 16, 1948, non-recording gage and August 17, 1948 to May 15, 1972, water-stage recorder on left bank; water-stage recorder on right bank, May 16, 1972 to September 30, 1991, at site 60 ft upstream. Prior to October 1, 1974, at datum 4.00 ft higher; October 1, 1974 to September 30, 1991, at datum 2.00 ft higher.
PERIOD OF RECORD - WATER TEMPERATURE: October 2015 to present.
INSTRUMENTATION - Electronic water temperature recorder set for 15 minute recording interval.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum recorded 16.2 °C, July 7, 2019; Minimum, 0.0°C, on many days during fall, winter, and spring breakup periods.