DESCRIPTION
The CTUIR will use these grant funds
to implement designs currently being developed under project 16-1459 to restore
fish habitat and connect floodplain on the N. Touchet River upstream of Dayton,
WA. This is a restoration project involving the cooperation of the Tribes, SRSRB,
and at least 3 private landowners – the project will be phased due to size. The
overall goal is to restore much needed salmonid habitat along a priority reach
of the N. Touchet. While primarily focused on juvenile rearing habitat, the
project will benefit all life stages of ESA listed mid-Columbia Steelhead, bull
trout, redband trout, and now Chinook salmon that were re-introduced in 2015
-2016.
This phase of the project (site 25+00)
involves approximately 200 feet of levee breaching, adding approximately 31 LWD
structures to act as roughness and as a mechanism to sort sediment, provide
habitat cover and scour pools. Two alcoves will be constructed along the
project reach to relieve the current firehouse effect providing approximately 1.5
acres of off-channel habitat for juvenile salmonids. Floodplain connectivity is anticipated to be
increased by approximately X acres at the modeled 25 year return flow. This
project is in a designated priority restoration reach in the Touchet River
major spawning area as identified in the Salmon Recovery Plan for SE Washington
(2011) and regional three year work plan.
The Confederated Tribes of the Umatilla Indian Reservation will use these grant funds to begin implementing designs being developed under project 16-1459 to restore fish habitat and connect floodplain on the N. Touchet River upstream of Dayton, WA. The overall restoration project involves the cooperation of the Tribes, SRSRB, and at least 3 private landowners the project will be phased due to size. The overall goal is to restore much needed salmonid habitat along a priority reach of the N. Touchet. While primarily focused on juvenile rearing habitat, the project will benefit all life stages of ESA listed mid-Columbia Steelhead, bull trout, redband trout, and now Chinook salmon that were re-introduced in 2015 -2016. This first phase of the project (site 25+00) involves breaching approximately 200 feet of levee and adding approximately 31 LWD structures to act as roughness and as a mechanism to sort sediment, provide cover habitat and scour pools. Two alcoves will also be constructed along the project reach to relieve the current "firehouse effect" and provide approximately 1.5 acres of off-channel habitat for juvenile salmonids. Floodplain connectivity is anticipated to be increased by approximately 5 acres at the modeled 25 year return flow. Approximately 2 acres will be planted with native riparian vegetation. This project is in a designated priority restoration reach in the Touchet River major spawning area, as identified in the Salmon Recovery Plan for SE Washington (2011) and regional three year work plan.