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Scientific Investigations Report 2010–5016

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Prepared in cooperation with the Eugene Water & Electric Board and
The Nature Conservancy

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

By John Risley, J. Rose Wallick, Ian Waite, and Adam Stonewall

Tables

Table 1. Mean streamflow and basin yield at selected streamflow-gaging stations in the McKenzie River basin, Oregon.

Table 2. Locations of study reaches in the McKenzie River basin, Oregon.

Table 3. Dams in the McKenzie River basin, Oregon.

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

Table 5. U.S. Geological Survey streamflow-gaging stations in the McKenzie River basin, Oregon.

Table 6. Streamflow-gaging stations or streamflow points of the study reach, McKenzie River basin, Oregon.

Table 7. Estimated bankfull gage heights and streamflows at study reach streamflow sites, McKenzie River basin, Oregon.

Table 8. Indicators of Hydrologic Alteration parameters used to quantify hydrologic changes resulting from dams and canals, McKenzie River, Oregon.

Table 9. Environmental flow component parameters from the Indicators of Hydrologic Alteration software package and their ecosystem influences.

Table 10. Significant changes to environmental flow components in the McKenzie River basin as a result of upstream dams.

Table 11. Airport median monthly precipitation totals, Eugene, Oregon, 1936–1962 and 1963–2008.

Table 12. Pre- and post-dam flood statistics for McKenzie River, Oregon.

Table 13. Pre- and post-dam streamflow statistics from measured and estimated daily mean streamflow for McKenzie River, Oregon.

Table 14. Median monthly streamflows for pre-dam, post-dam, computed unregulated, and simulated regulated conditions in reaches, McKenzie River, Oregon.

Table 15. Hydrologic changes in selected reaches, McKenzie River, Oregon.

Table 16. Temperature criteria for Federal Clean Water Act section 303(d) listed segments in the McKenzie River basin, Oregon.

Table 17. Monthly streamflow-release target temperatures for Cougar and Blue River Dams, McKenzie River basin, Oregon.

Table 18. Water temperature criteria for listed and sensitive fish species in the McKenzie River basin, Oregon.

Table 19. U.S. Geological Survey stream-temperature monitoring sites in the McKenzie River basin, Oregon.

Table 20. Geomorphic characteristics of reaches in the McKenzie River basin, Oregon.

Table 21. Streamflow and physical habitat relationship summary for the upper, middle, and lower McKenzie River basins, Oregon.


Table 22. Streamflow and exemplar species relationship summary.

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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