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Work to begin on Mercer Island East Link Traffic Mitigation Project
As part of the Environmental Impact Study and Record of Decision for the East Link Light Rail project, Sound Transit will make traffic mitigation efforts around the Mercer Island station. The improvements primarily consist of improved traffic signals, pavement, and markings at three intersections nearest the station.
The scope of these improvements includes:
76th Ave SE and N Mercer Way
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Replacing existing hanging traffic signals with traffic light poles
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Installing new curbs and sidewalks for improved pedestrian experience
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Enhancing crosswalk markings
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Completing final landscaping improvements
77th Ave SE and N Mercer Way
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Replacing an existing catch basin on the SE corner for better stormwater management
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Installing final driving surfaces
80th Ave SE and SE 27th St
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Installing new traffic light poles and signals
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Installing new curbs and sidewalks for improved pedestrian experience
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Enhancing crosswalk markings
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Completing final landscaping improvements
We expect to start the work in mid-August 2024, with utility location, surveys, necessary demolition, and installation of erosion control measures. The public should anticipate some temporary traffic and pedestrian impacts. The City of Mercer Island and the Washington State Department of Transportation reviewed and approved the traffic detour plans. We will install the appropriate signage before implementation.
Additionally, trucks with drilling equipment may be used for "potholing" to investigate subsurface conditions.
Project updates will be ongoing, but here is a high-level view of the project schedule and anticipated activities:
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Traffic control setup, potholing, curb demolition and repair
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Installing temporary pedestrian access
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Removing some existing sidewalks and curbs
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Pouring new concrete and paving
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Anticipated project completion
The schedule primarily focuses on day shift work, with some potential for night work. Coordination with Sound Transit will occur if night work is necessary, and the agency will communicate about the activities accordingly.
Contact us
After-hours construction hotline: 1-888-298-2395
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Your safety is our priority.
Getting around construction zones can be a challenge. Whether you are walking, rolling, cycling or driving, please stay safe.
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Have an after-hours construction concern?
Call our 24-hour hotline: 888-298-2395
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