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Project Title & Location
SR900 / SE 78th Vic to Newport Way Vic Widening -- in Issaquah
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Project Description
This project will widen SR 900 from SE 78th vicinity north to Newport Way from 2 to 4 lanes and a two way left turn lane. The purpose is to add width and capacity to SR 900 to improve operations and safety.
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Contractor/Consultant
Project not yet advertised or awarded.
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Recent Progress
A Cost Risk Assessment was completed for this project. The project estimate is $5 million over the budget amount. The project has been reviewed for cost saving opportunities and a preferred alternative has been identified.
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Design Construction Impacts
Working with the city of Issaquah to determine final channelization layout and location of pedestrian facilities.
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Environmental Impacts / Compliance
Discussing phosphorus removal requirements with permitting agency to determine impacts on size of stormwater treatment ponds. A report has been prepared analyzing the performance of previously constructed treatment facilities and will be presented to the Multi Agency Permitting Team.
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Impacts to Traffic
This project is targeted to improve efficiency of traffic operation. Construction will require non-peak lane closures and temporary detours.
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