Steelhead Count for Bonneville Dam and Lower Granite Dam

Latest Update: July 21, 2008

Bonneville Dam	2008	2007
Daily count on 7/20	5,818	2,673
Total count on 7/20	84,719	38,363

Lower Granite Dam	2007-08	2006-07
Daily count on 7/20	116	24
Total count on 7/20	1,566	1,008
Lower Granite Dam is the uppermost of eight Army Corps of Engineer' dams on the Columbia and Snake rivers. The majority of steelhead crossing Lower Granite Dam are headed for Idaho streams. The 2008-09 steelhead counting season at Lower Granite Dam began on June 1 and will continue through May 31, 2009. The Army Corps of Engineers suspends counting between December 16 and March 1.

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.