The Trojan Nuclear Power Plant was located in Prescott, Oregon approximately 42 miles north of Portland, Oregon. The Westinghouse PWR was owned by Portland General Electric Co. Trojan was shutdown in January 1993. Most of the plant site was decommissioned between February 2001 and December 2004. The reactor pressure vessel was shipped (intact and but wrapped in concrete foam) to Hanford, Washington for burial in 2005 and the cooling tower was demolished by dynamite implosion in May 2006.
The 780 SNF assemblies (359 metric tons) from Trojan were transferred to the on-site ISFSI between 2002 and 2003 pursuant to a site-specific license. The ISFSI consists of a single concrete pad approximately 200 by 200 feet square and surrounded by two security fences. There are 34 dry storage casks on the ISFSI in two groups of 3 by 6 arrays. The casks were manufactured by Holtec — the Hi-Storm cask system and the MPC-24 canister type.
Additional information regarding Trojan can be found at the following website: