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Bonneville/Lower Granite Dam Steelhead Counts

Thursday, September 18, 2014 

2014 Steelhead Count
From July 1 to December 15


To view winter passage at Bonneville Dam go to: Corps of Engineers Fish Reporting Site
Dam Date of Count Daily Count Total to Date
in 2014
Total to Date
in
2013
5 Year Average
Total Count to Date
Bonneville September 15
3,784
254,288 202,383
320,258
Lower Granite September 15
1,311 21,847
8,699 46,461
  • Counts include wild and hatchery origin fish. Most steelhead bound for Idaho cross Bonneville Dam between July 1 and October 31.
  • Information on numbers of steelhead crossing the Columbia and Snake River dams is taken from data posted by the United States Army Corps of Engineers, and is updated weekly during the counting season.


Daily steelhead count at Lower Bonneville Dam
Daily steelhead count at Lower Granite Dam

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