Slamgeesh Salmon project, which enumerates sockeye and coho adults and smolts, has been in continuous operation by Gitksan Watershed Authorities from 2000 to 2019. The fence was washed out on August 23, 2020 by an extreme precipitation event in conjunction with upstream beaver dam failures, which released relatively massive amounts of stored water and the resulting peak flow collapsed the counting fence. The fence abutments remained solid, fence trusses and panels were subsequently recovered; however, the foundation was altered and the sill disappeared.
This project concept proposes to re-install a functional counting fence foundation and sill (58’ X 12’) utilizing small pipe piles, a structural steel framework capable of supporting the aluminum sill plate and fence superstructure components including the panels and smolt trap accessories.
