DESCRIPTION
The problem is a 0% passable fish passage barrier culvert under Newskah Road on an unnamed tributary to Newskah Creek south of Aberdeen in the South Bay Subbasin. The degraded watershed process this project addresses is fish migration access to upstream spawning and rearing habitat. The solution is to remove the barrier culvert and replace it with a structure that is passable to all species and life stages of salmonids and other aquatic species in this unnamed tributary. Project design and permitting have been completed through RCO grant #16-1327; this grant application is for construction funds only. The components of this project include bid packet development and advertising; contractor selection; project implementation including barrier removal and installation of new, larger culvert; monitoring; and planting.
This restoration project corrected a 0% passable fish passage barrier culvert (#125 1709W29C) under Newskah Road at road mile 1.95 on an unnamed tributary to Newskah Creek south of Aberdeen, a Grays Harbor South Bay Subbasin. The project addressed the degraded watershed process of fish migration and access to more than 1.5 miles of upstream spawning and rearing habitat. The goal was to remove the barrier culvert and replace it with a structure that is passable to all life stages of all salmonids and other aquatic species in this unnamed tributary. Salmonid species that now benefits from this correction include coho, chum salmon, steelhead and cutthroat trout. Project design and permitting has been completed through RCO grant #16-1327. This grant application was for the construction portion of the project. Correcting fish passage barriers is a Tier 1 concern according to the Chehalis Basin Lead Entity's restoration strategy: This culvert was in the top 16% on the Lead Entity priority ranked list of barriers in the Chehalis Basin and in the top 10% in the lower Chehalis Basin, WRIA 22.
The correction took place in August of 2020 with the installation of a bottomless arch, deep corrugated, 5 gauge, galvanized, multi plate structure 60 feet long with precast concrete footings. A bypass road was installed upstream of the county road site to allow local residence beyond the site access around the project during construction. There was heavy dump truck traffic from a large rock quarry beyond the project site as well as logging truck traffic. The local utilities companies cooperated by moving and installing taller power poles for the electricity to allow safer machine operation and the phone company spliced in a bypass for the phone line around the project just upstream of the bypass road. The project took three weeks to totally complete from start to finish with no unusual issues. The landowners were cooperative and great to work with as well as residence that lived beyond the project site. A project sign listing funders, cooperators, sponsors and contractors was posted at the site. The Grays Harbor Road Department supplied surveys and project grade staking and the engineers from Gray Harbor County have always been very good to work with fully cooperating with the Task Force consultant and engineer. There is one more county road crossing called Newskah 2 just beyond this site about 1 mile that needs correcting and all known barrier culverts in the Newskah watershed will have been corrected. The timber companies in this basin have already corrected their barriers at this point in time. The permitting and design for Newskah 2 is in process and funding is currently being sought for this last barrier project site.