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Water-Year Summary for Site 14158850

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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.
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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00095 Specific cond at 25C(Max.,Mean,Min.)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
LOCATION - Lat 44°16'05", long 122°02'55" referenced to North American Datum of 1927, Linn County, OR, Hydrologic Unit 17090004, (unsurveyed), Willamette National Forest, on left bank, 0.4 mi downstream from Trail Bridge Dam, 0.5 mi upstream from Anderson Creek, 5 mi north of town of Belknap Springs and at mile 81.5.
DRAINAGE AREA - 184 mi².
PERIOD OF RECORD - October 1959 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,980.00 ft above NGVD of 1929 (levels by Eugene Water & Electric Board). Prior to Oct. 11, 1963, at datum 5.60 ft higher.
REMARKS - Flow regulated since 1963 by Smith River Reservoir (active capacity, 9,900 acre-ft). Diurnal fluctuations caused by powerplants and by Trail Bridge Reservoir (active capacity for reregulating purposes, 2,100 acre-ft). Water is diverted from McKenzie River in SW 1/4 sec.20, T.14 S., R.7 E., to Smith River Reservoir and returned to river upstream from station. Computation of monthly and annual adjusted flows discontinued water year 2014. Continuous water-quality records for periods November 1976 to September 1985 and July 1992 to September 1993 have been collected at this location.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 11,200 ft³/s Dec. 22, 1964, gage height, 12.45 ft, from rating curve extended above 3,700 ft³/s on basis of slope-area measurement of peak flow; minimum discharge, 185 ft³/s Feb. 3, 1963; minimum daily, 423 ft³/s Nov. 22, 1993.

SPECIFIC CONDUCTANCE: November 1976 to September 1985, July 2017 to current year.

WATER TEMPERATURE: November 1976 to September 1985, July 1992 to September 1993, July 2017 to current year.

INSTRUMENTATION - Water-quality monitor.

SPECIFIC CONDUCTANCE: Maximum recorded, 67 microsiemens Nov. 9, 10, 1977; minimum recorded, 35 microsiemens Dec. 15, 1977, Apr. 8, 9, 2019. 

WATER TEMPERATURE: Maximum recorded, 12.4°C Aug. 4, 2018; minimum, 2.0°C Dec. 24, 25, 1983.