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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
14181410 BIG CLIFF DAM TAILWATER NEAR NIAGRA, OR
LOCATION - Lat 44°45'05.35", long 122°17'00.16" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 sec.35, T.9 S., R.4 E., Marion County, OR, Hydrologic Unit 17090005, at powerhouse near right end of Big Cliff Dam on North Santiam River, and at mile 58.05.
DRAINAGE AREA - 453 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2013 to current year (gage heights only).
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (levels by U.S. Army Corps of Engineers).
REMARKS - Flow regulated by Big Cliff Dam (active capacity for reregulating purposes, 2,930 acre-ft).
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 1,118.47 ft May 7, 2022; minimum, 1,106.82 ft Jan. 4, 2017.
