South Fork Nooksack River Larson’s Bridge Reach Phase 2 Restoration Project
TRI_0084
The Lummi Nation will construct up to 29 engineered log jams (ELJs) in the mainstem South Fork Nooksack River, consisting of at least nine Type I, nine Type II, three Type III, and five Type IV ELJs. Endangered early spring Chinook salmon and bull trout will benefit from 23 primary pools and more pools may develop indirectly as increased roughness causes dynamic equilibrium. Scour pools provide thermal refugia (holding pools) from elevated South Fork water temperatures during summer spawning months, in addition to pools for juvenile overwintering (rearing pools). All features are focused on enhancement of endangered Spring Chinook habitat by maximizing natural habitat-forming processes inherent in this reach of river.