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Project Title & Location
US 12 - Naches River - Flood Plain Work
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Project Description
The area of US 12 along the Lower Naches River, near the 16th Avenue interchange, suffers from repetitive bank erosion and slope failures. Emergency work has been performed in this area four times since 1999. This project will correct this chronic environmental deficiency by moving the Naches River channel away from US 12, and construct a bio-engineered structure in the river to reduce future problems and protect the roadway and environment.
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Contractor/Consultant
Project has not been advertised or awarded
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Recent Progress
We are currently working with our partners (Yakima County, City of Yakima, NOAA Fisheries and Washington Dept. of Fish and Wildlife) to finalize the design. The preliminary design has been simplified to remain within budget, yet still maintain the intent of the project and provide the necessary highway protection.
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Design Construction Impacts
In our discussions with the resource agencies, NOAA Fisheries has recently requested that more "woody debris" be part of the design for this project. We are now re-designing the project to incorporate more wood structures into the design while trying to maintain the function of the project. If we can't reach the correct balance of wood and rock such that we immediately improve habitat while adequately protecting the highway, we may need to undergo formal consultation to maintain the intent of the project and remain within budget. This could delay the project advertisement date.
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Environmental Impacts / Compliance
There is a strong effort to maintain this project as "self mitigating".
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Impacts to Traffic
No impacts are anticipated at this time.
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