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Project Title & Location
SR 20 Fredonia to I-5 Located on SR 20 in Skagit County between SR 536 and Burlington.
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Project Description
This project will improve approximately 5 miles of State Route 20 in Skagit County, from the intersection of SR 536 (Fredonia) to Interstate 5 (Burlington). This portion of SR 20 is currently a two-lane undivided highway, which this project would upgrade to a four-lane divided highway. In addition, realignment of the southbound I-5 ramps and modifications to the northbound ramps will improve movement at the SR 20/I-5 interchange.
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Environmental Impacts / Compliance
· The project will impact 6.33 acres of wetlands. Wetland impacts are being mitigated by creating 8.35 acres of new wetlands and enhancing 0.69 acres of existing wetlands adjacent to Gages Slough under the Stage I contract. The Stage II contract will provide 0.65 acres of streamside resotration at No Name Slough to mitigate the impacts of disturbing the banks of Higgins Slough.
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Impacts to Traffic
· Moderate daily traffic delays are expected due to normal construction activities such as trucks entering and exiting the roadway etc.
· Traffic control staging will be required.
· Detours will be necessary for intersecting local roads during upgrade of railroad crossings and road work.
· Temporary roadways will be provided to keep southbound traffic at the interchange moving during construction of the new southbound ramps.
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