DESCRIPTION
The Walla Walla County Conservation District intends to complete an application for an engineered design for the MS-9 project area as identified in the Touchet River Conceptual Plan. The MS-9 project area is located upstream of the City of Waitsburg (46.2720, -118.1211). The engineered design will likely include a series of engineered log structures and possible levee setback along 1.26 mile to benefit mid-Columbia steelhead and bull trout habitat. The design will include multiple Hec-Ras modeling as has been requested by past RCO peer reviews.
The Walla Walla County Conservation District intends to complete a preliminary engineered design for a fish habitat restoration project on the mainstem-9 project area on the Touchet River located in Walla Walla County Washington. This area was identified as a tier 1: high priority within the Upper Touchet Basin Plan (2020). The project area is within a major spawning area for ESA listed mid-Columbia River steelhead as identified in the Snake River Salmon Recovery Plan (2011). The overall goal is to create a preliminary engineered design incorporating a series of engineered log structures and possible levee setback along just over a 1.6 miles to benefit mid-Columbia steelhead and bull trout habitat. The intent of the design is to restore natural river processes including increased channel roughness elements, promote sediment sorting and storage, and large wood features. When constructed, the project will provide mid-Columbia steelhead adult holding and juvenile rearing habitat.