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Scientific Investigations Report 2010–5016

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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