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Scientific Investigations Report 2010–5016

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Development of an Environmental Flow Framework for the McKenzie River Basin, Oregon

Table 4. Minimum and maximum streamflow objectives below Blue River and Cougar Dams, McKenzie River, Oregon.

[Data from National Marine Fisheries Service (2008b). Abbreviations: ft3/s, cubic feet per second; –, no data]

Period Primary use Streamflow (ft3/s)
Minimum Maximum
Blue River Dam
September 1 – October 15 Chinook spawning 50 –
October 16 – January 31 Chinook incubation 50 –
February 1 – August 31 Rearing 50 –
Cougar Dam
September 1 – October 15 Chinook spawning 300 580
October 16 – January 31 Chinook incubation 300 –
February 1 – May 31 Rearing 300 –
June 1 – June 30 Rearing/adult migration 400 –
July 1 – July 31 Rearing 300 –
August 1 – August 31 Rearing 300 –

First posted February 8, 2010

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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