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Triton Environmental Consultants Ltd. was retained by Canadian Forest Products Ltd, Plateau Division, to complete Fish-Passage Culvert Inspections (FPCI) along the Bobtail, Kenny Dam, Kluskus, and Dog Creek Trail Forest Service Roads (FSR). FPCI attempt to identify culverts at road crossings that may present barriers to fish passage. The procedures used during this survey followed those outlined in the Fish Passage Culvert Inspection Procedures manual (Parker 2000). The study area lies within the Vanderhoof South Resource Management Zone identified as part of the Vanderhoof Land and Resource Management Plan (LRMP). The Vanderhoof South Zone lies south of the agriculture and settlement area along the Highway 16 corridor, and is developed mainly through timber harvesting. Although numerous sport fish species (e.g. burbot, chinook salmon, Kokanee) are known to occur in the major watercourses within the area (e.g. the Chilako River, Nechako River), operational level Fish and Fish Habitat Inventories in the study area (e.g. Triton Environmental Consultants Ltd. 2005, 2006) indicate that rainbow trout are typically the only species of game fish that would be expected in smaller indirect tributaries to these systems. A total of 170 sites were surveyed between June 13th and July 10, 2006 as part of the field program. Of these, full inspections (Form A) were completed on 106 sites. The remaining sites were visited but not assessed as they were bridges, structures had been removed, or lacked fish habitat (non-classified drainage or dry channel). Another 3 were deleted from the plan as they were duplicated sites or incorrectly identified (road had been deactivated). Of the 106 assessed sites, 19 of the culverts were determined to be full barriers (7 high priority, 10 medium priority, 3 low priority), 48 were partial barriers (7 high priority, 37 medium priority, 4 low priority) and 39 were determined not to be barriers to fish migration. Five culverts with maintenance issues, and two culverts that are low to moderate sediment sources have also been identified. The majority of culverts were found to have a diameter that was inadequate to accommodate the Q100 culvert diameter estimate outlined in Parker (2000), however the formula presented in Parker is a conservative estimate.
Triton Environmental Consultants Ltd.
Triton. 2007. Fish passage culvert inspections (FPCI) at selected crossings throughout the Bobtail, Dog Creek Trail, Kenny Dam and Kluskus road networks. Forest Investment Account (FIA) - Land Base Investment Program. Forest Investment Account Report
Topic: FLNRORD Research Program
Keywords: Forest, Investment, Account, (FIA), Culverts, Environmental, Aspects, British, Columbia
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