Lower Monumental Dam

Location: River Mile  41.6 on the Snake River (365 river miles from the mouth of the Columbia River) located in HUC 17060110
Operated by: United States Army Corp of Engineers, Walla Walla District
Link: http://www.nww.usace.army.mil/dpn/dpn_project.asp?project_id=92

2006 Smolt Monitoring

April 3 to October 15
Sampling conducted by Washington Department of Fish and Wildlife
Project Leader: Monty Price

Passage index formula

1999 to present:	(collection count)/((average(powerhouse 1 flow/(powerhouse 1 flow + total spill))))
1998 to 1991	(collection count)/((average (COE turbine discharge/(COE turbine discharge + COE total spill))))
1990 to 1987:	(collection count)/((average(powerhouse 2 flow/(powerhouse 1 flow + total spill))))
1986:	(collection count)/((average(powerhouse 2 flow/(powerhouse 1 flow + powerhouse 2 flow + total spill))))

Traditional Adult Return Reporting Dates

April 1 to October 31

Page last updated on: December 28, 2007

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