USGS Water-Year Summary 2024
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.
REVISIONS HISTORY - WDR AK-2007-1: 2006(peak stage only)
SURFACE-WATER RECORDS
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. Datum of gage is 921.03 ft NAVD88. 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.
WATER-QUALITY RECORDS
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.