USGS Water-Year Summary 2024

15295700 TERROR RIVER AT MOUTH NEAR KODIAK, AK

LOCATION - Lat 57°41'41", long 153°09'42" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.05, T.29 S., R.24 W., Kodiak Island Borough, AK, Hydrologic Unit 19020701, (Kodiak C-4 quad), on Kodiak Island, in Kodiak National Wildlife Refuge, on right bank, 0.9 mi upstream from mouth, 7.5 mi downstream from Terror Lake Dam, and 29 mi southwest of Kodiak.

DRAINAGE AREA - 46.1 mi². 45.7 mi² prior to diversion from Terror Lake to hydropower plant on Kizhuyak River.

REVISIONS HISTORY - WDR AK-84-1: 1982-83. WDR AK-96-1: 1995(instantaneous maximum discharge).

SURFACE-WATER RECORDS

PERIOD OF RECORD - February 1964 to October 1968, October 1981 to current year.

GAGE - Water-stage recorder. Datum of gage is 21.40 ft NAVD88. Prior to October 1, 1981 at site 0.2 mi downstream at different datum.

REMARKS - Flow from 15 mi² at headwaters regulated by Terror Lake Dam and some flow diverted from Terror Lake to Kizhuyak River. Regulation for construction began in November 1982. Began filling reservoir April 29, 1984. Diversion to hydropower plant began February 12, 1985. See Water-Data Reports prior to 2010 for Summary Statistics for Water Years 1965-1983, prior to construction of Terror Lake Dam. GOES satellite telemetry at station.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1968, 1982 to current year.

PERIOD OF DAILY RECORD - WATER TEMPERATURE: December 1981 to current year.

INSTRUMENTATION - Water-temperature recorder since December 10, 1981. Electronic water-temperature recorder set for 15-minute recording interval.

REMARKS - Records represent water temperature at sensor within 0.2 °C.

EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 17.0°C, July 7 and 8, 2019; minimum, 0.0°C many days during winter.