Overview
This Environmental Retrofit Project a fish barrier under SR 20 where the undercrossing of Little Boulder Creek, a 6-foot by 9-foot, steel structural plate arch, was replaced with a 26-foot bottomless steel pipe arch allowing fish passage in a more natural environment.
Construction began September 6th and was complete October 24th.
 | Protects Environment
Improved fish migration.
Increased culvert capacity to accomodate 100 year flood flows.
The following are the permits and/or documentation required for this project:
Environmental Project Documents:
NEPA - Documented CE
SEPA - Determination of Non-Significance
Environmental Project Permits:
Army Corps of Engineers
Hydraulic Project Approval
Nat. Historic PreservationAct - Section 106
Water Quality Certification - Sec. 401
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 | Economic Incentive
Reduced maintenance costs not having to clean clogged culverts every spring.
|
Partnerships & Cooperation
the undercrossing of Little Boulder Creek was identified as deficient for fish passage by the Washington State Department of Fish and Wildlife.
Funding
This project was advertised for bids on April 18th and eight bids were opened on May 12th. Snelson Companies Inc. was awarded contract #6979 on May 16th for $409,435.00, 11% under the engineering estimate.
This project was funded through the following sources:
Pre-Existing Gas Tax - $545,000
Total funding from all sources - $545,000
Contact Us
Project Engineer Eric Pierson
WSDOT North Central Region
P.O. Box 98
Wenatchee, WA 98807
Phone: (509) 667-2870 or
toll free (888) 461-8816
E-mail: piersoe@wsdot.wa.gov
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