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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
01354230 MOHAWK RIVER AT LOCK 9 AT ROTTERDAM JUNCTION, NY
LOCATION - Lat 42°52'41.8", long 74°02'26.7" referenced to North American Datum of 1983, Schenectady County, NY, Hydrologic Unit 02020004, on left bank, 330 ft downstream of Lock 9 on the Erie (Barge) Canal, 8.0 mi west of Schenectady.
DRAINAGE AREA - 3,250 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 2019 to current year (gage heights only).
GAGE - Water-stage recorder. Datum of gage is 199.46 ft above NAVD of 1988.
REMARKS - Considerable regulation of stage by Lock 9 on the Erie (Barge) Canal about 330 ft upstream and Lock 8 about 7.0 mi downstream.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 37.15 ft, Apr. 8, 2022; minimum gage height recorded, 14.10 ft, May 9, 10, 11, 2023, but may have been lower when water levels were below the sensor.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: December 2021 to current year.
INSTRUMENTATION - Water-temperature recorder provides 5-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 28.8°C, Aug. 8, 9, 2022; minimum, 0.0°C, on many days during winter period.
