January 2025
Traffic detours for monitoring equipment in East Lake Sammamish Parkway beginning the week of January 13th
Geotechnical crews will work for up to one day in East Lake Sammamish Parkway. Crews will be performing seasonal monitoring of groundwater and inspecting monitoring wells. The data they collect will inform King County’s Sammamish Plateau Diversion Project.
Crews will monitor and inspect the wells installed in October 2024. This work will result in temporary single-lane closures along East Lake Sammamish Parkway as crews work at each well. Once work begins, it is expected to take up to one day.
What To Expect
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The work will be scheduled between 9 a.m. and 4 p.m. during the work week (Monday-Friday). Work is expected to take up to one day.
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Temporary single-lane or turn-lane closures on East Lake Sammamish Parkway Northeast between Northeast 49th Place and Northeast Inglewood Hill Road (see map below).
- Message signs on East Lake Sammamish Parkway Northeast with advance notice of closures.
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Flaggers directing drivers through the area.
- Local and emergency access will be maintained during the closure.
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Flaggers will treat school buses as an emergency vehicle to reduce delays.
Approximate location of work activities
We anticipate that crews will temporarily close a single lane or turn lane along East Lake Sammamish Parkway Northeast. Drilling locations noted in the map below from work in October 2024 are the same locations as our inspection locations for the week of January 13.
A map showing Lake Sammamish and the approximate closure and drilling locations.
We're here for you!
We know that large construction projects can be stressful for communities, and there are a lot of construction projects going on across the Eastside. Our project team is committed to being available and continuing to work with neighbors, businesses, visitors, and commuters every step of the way. We will be here for you all the way through design and construction and into operations. Feel free to contact us at any time!
Contact us
Monica Van der Vieren,Community Services Lead Monica.VanDerVieren@kingcounty.gov, 206-477-5502 Visit us at kingcounty.gov/SammamishPlateauDiversion
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