Mason Creek Final Design

As part of Final Designs, the project achieved its goal and worked with adjacent landowners to achieve project objectives. As part of Final Designs the project:
- developed designs that maximized wetland creation, fish passage and thermal benefits to fish
- developed designs that took into considerations adjacent lands with reduced impacts including working with the local HOA
- supports rearing juvenile salmonids over 4,000 ft. on Mason Creek and connection to wetlands and 2,000 ft. on the mainstem East Fork Lewis River; in both areas we improved instream habitat
- utilized collected WSE data to drive hydraulic modeling and site inundation mapping for existing and restored conditions
- developed 2d hydraulic model to assess existing and restored conditions
- developed JARPA permit
- initiated initial floodplain modeling for (later) FEMA consultation
- completed cultural assessment
- continued to meet with HOA

The project goals are to: Protect Tier 1 salmonid habitat along the main stem East Fork Lewis River and Mason Creek, a tributary to the East Fork Lewis River.

The purpose of the project is to provide off-channel rearing for upriver fish and Mason Creek fish. The Mason Creek project will connect critical wetland habitat to provide off-channel rearing, while mainstem Eat Fork Lewis River will also focus on rearing and spawning opportunities. Both sites will address degraded riparian and in-stream habitat conditions. The project developed habitat restoration designs that will contribute to the recovery of chum, fall Chinook, coho and winter steelhead.