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- The Skinney Creek culverts under US 2 at Milepost 88.5 between Winton and Chiwaukum Creek were replaced with a single, larger structure.
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- Before - the two existing culverts
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- Before - Skinney Creek upstream from the culverts
This P3 Highway Capital Preservation-Major Drainage-Program project removed fish passage barriers - the current culverts - replacing them with a single, larger three sided box culvert under US 2 for Skinney Creek, two miles west of Tumwater Canyon in Chelan County.
Why is WSDOT
replacing the existing culverts?
The two existing 36" culverts on Skinney Creek that cross under US 2 at MP 88.5 were undersized for the water flows experienced on Skinney Creek and were an onging maintenance concern and a barrier to fish passage due to their clogging with stream sediment.
The culverts were replaced with a new three sided box culvert that is designed specifically to improve fish passage.
To reduce environmental impacts, the new culvert was built downstream from the existing two culverts helping minimize in-water work. Wetlands that were temporarily impacted were revegitated to return them to pre-construction conditions.
The new stream channel through the new box culvert was vegitated to minimize erosion and encourage fish passage.
The End Result
This project provides a larger three sided concrete box culvert that is adequate to handle the high seasonal flows of Skinney Creek while encouraging fish passage.
- Reduced maintenance costs
- Removal of fish passage barriers
- Prevention of washout damage to the highway during high runoff events.
What is the project timeline?
Construction was started and finished in Sept. 2013.
Project signage will reflect the cost of construction engineering, project bid award and sales tax.
This project was advertised for private contactor bids on Oct. 29 2012. Nine bids were opened Nov. 29. On Dec. 12, Contract #8385 was awarded to Selland Construction, Inc. for $644,193.20, 44% under the engineering estimate.
The project was funded through the following sources:
- Pre-existing Gas Tax - $1.35 million
- Total Funding from all sources - $1.35 million
How can I get more information?
Bob Romine, Project Engineer
WSDOT North Central Region
2830 Euclid Avenue
Wenatchee, WA 98801-5916
Phone: (509) 667-2880 or toll free (888) 461-8816
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