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Project Title & Location
SR18 - Issaquah/Hobart Rd to I-90 - EA - Maple Valley to Snoqualmie
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Project Description
This project will complete the environmental work for widening
SR 18 to 2 lanes each direction with truck climbing lanes between
Issaquah/Hobart Road and I-90, constructing a new interchange at Tigergate
summit and making improvements to the I-90/SR 18 interchange.
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Contractor/Consultant
Consultant - HDR Engineering
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Recent Progress
Continued environmental analysis and design of the preferred alternative. Held second public open house in November 2005. Began work on corridor level route development plan and SR 18/I90 interchange improvement analysis for Federal Highway Administration approval.
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Design Construction Impacts
Construction phase not yet funded. Please see the project page for more information.
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Environmental Impacts / Compliance
The project is in early stages of the environmental documentation process. During this process, the design team will identify project impacts and address compliance issues.
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Impacts to Traffic
The completed SR 18 project will improve traffic flow and safety on the highway.
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