DESCRIPTION
The project would develop designs for large wood additions to the lower 2,000 feet of Shale Creek with the goal of aggrading the stream bed by capturing additional spawning gravels, decreasing maximum flow velocities, improving floodplain connectivity, and increasing habitat complexity. Working off the design work at Hurst Creek and Ellsworth Creek large wood placements we will devise a robust yet economically feasible approach to place wood in the Shale Creek channel. We expect that doing this work will lead to more diverse and productive habitat for both spawning and rearing salmonids, especially coho.
The Nature Conservancy (TNC) has completed the Preliminary Design for the 1.4 miles of the Shale Creek Restoration Project, a tributary to the Clearwater River located in Jefferson County, WA. The project goal is to restore physical and ecological processes within the lower 2 miles of Shale Creek for both spawning and rearing salmonids, especially Coho. This initial SRFB Project focused on the preliminary design and below is a list of the work completed during the project:
-Hired an outside consultant, Natural Systems Design (NSD), who is familiar with the project area and has with expertise in stream restoration and engineering design in July 2016.
-Completed an initial habitat and fish presence survey of the reach working with our Partners (the Quinault Indian Nation (QIN), WA Department of Natural Resources, and Trout Unlimited) in August 2016. This included mapping the Shale Creek system of physical characteristics and conducting stream shocking to identify fish presence. During this survey TNC and Partners identified cold water seeps for priority areas and measured stream temperature as well as installed permanent temperature gauges.
-In January 2017, TNC, QIN and Natural Systems Design (NSD) completed baseline measurements including riparian vegetation and habitat characteristics, current wood loading, measured channel incision throughout the treatment reach, to conduct field evaluations of current baseline stream habitat, geomorphological, and hydrologic conditions of two miles of Shale Creek a tributary to the Clearwater River. TNC contracted with NSD and evaluated current stream conditions for habitat. This information was prepared and documented in the “Shale Creek Site Assessment” dated on March 21st 2017 and updated and revised based on TNC feedback on April 13th 2017.
-Based upon the “Shale Creek Site Assessment” From this data collected and measure Habitat Restoration recommendations were created and the engineering designs for the LWD placement were prepared in the “Preliminary Design Report”. This report characterizes log jam priority locations, and the design of each jam as well as conducted a hydraulic analysis. A detailed implementation and construction estimate was also prepared that addressed costs associated with different construction procedures.
-In May of 2017, NSD and TNC worked with regulating agencies WA epartment of fish and Wildlife, Army Corps of Engineering, WA DNR to share the design and implementation and construction ideas. TNC received positive feedback and all agencies are on board with the design and implementation of the project. A scheduled meeting in October of 2017 will be coordinated to continue moving forward on the permitting process.