The Porter Creek Reach In-stream Restoration Project is located between river miles3.9 and 4.95 and on the main stem of the Middle Fork Nooksack, in Welcome, Washington (Whatcom County). The goal of the Middle Fork Porter Reach project is to restore salmonid spawning, rearing and holding habitat in order to recover self-sustaining salmonid runs to harvestable levels by addressing limiting factors of temperature, channel stability, and habitat diversity and quantity in the reach. The Lummi Nation will use this grant to construct 51 engineered log jams (ELJs) in the mainstem Middle Fork Nooksack River, consisting of 3 Type I ELJs (42x80x6'), 15 Type II ELJs (30x60x6'), and 33 Type III ELJs (34x75x4'). Endangered early spring Chinook salmon and bull trout will benefit from 48 new primary pools; more pools may develop indirectly as increased roughness causes dynamic equilibrium. Scour pools provide thermal refugia (holding pools) from elevated Middle Fork water temperatures during summer spawning months in addition to pools for juvenile overwintering (rearing pools). In addition, juveniles will benefit from 1.75 miles of off channel rearing habitat by increasing connectivity with the floodplain and side channels. To improve survival of rearing salmon, at least 800 acres of floodplain is expected to be reconnected. All features are focused on enhancement of endangered Spring Chinook ( Oncorhynchus tshawytscha ) habitat by maximizing natural habitat-forming processes inherent in this reach of river.