DESCRIPTION
This project builds on Upper Deschutes Design project, that will generate numerous designs for seeking funding for implementation in the coming years.
The Upper Deschutes River Restoration Phase 1 project will implement the priority project reach that was identified in the Upper Deschutes Conceptual Design (21-1138). The implementation will take place across 1.75-total miles of the upper Deschutes, with 0.25-miles of Mitchell Creek at the confluence and 1.5-miles between river mile 37-38.5 on the mainstem Deschutes. Multiple large wood implementation techniques will be utilized in this project such as tree tipping and helicopter placement of a myriad of log jam types. A total of 99 full riparian trees will be tipped as part of this project, and nearly 250 additional key pieces via helicopter. The helicopter placed wood will be installed using a series of typical designs that are being developed and permitted under the current Upper Deschutes Final Design & Permits (23-1100). These log jam types range from channel spanning, to margin and deflector, all the way out to floodplain jams. After project completion, this 1.75-miles of restoration will put SPSSEG 18% closer to achieving Scenario A (2015 Squaxin) for the entire upper basin. This project will also strength the current relationship with Weyerhaeuser Co and mark a full buy-in from the company as they will be signing on to accept on-site rise due to the project.