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100th Avenue Northeast Corridor Improvements


Kirkland's contractor, Interwest Construction, plans to close a short section of 100th Avenue Northeast for 23 consecutive days, starting July 22. The closure will extend from the south side of Simonds Road to the north side of Northeast 139th Street.

Update (Oct. 9, 2020) -- The City of Bothell is resuming its efforts Oct. 19 to retrofit for earthquakes the Waynita Way Bridge, which crosses over the Sammamish River. View more information by visiting the City of Bothell's project webpage
100th Avenue Northeast & Cedar Creek
In the fall, 100th-Project-Update-cedar-creek-culvertThe City of Kirkland begins planting the area with 530 trees and 3,700 shrubs. This native vegetation will replace the 40 trees Kirkland's contractor had to remove to install the Cedar Creek culvert. Community members can review the planting plan on sheets 28 - 33 of the linked plan set. (The planting plan is on the document's last six pages).   
Click on this Project Update link or on the thumbnail above for more information about other capital projects. 

100th-folioWhy Kirkland wants to redesign and rebuild 100th Avenue Northeast
(Sept. 17, 2015 PDF 650 KB)

Project Manager Debbie Cook,, (425) 572-6878 or Senior Neighborhood Services Coordinator Christian Knight,, (425) 587-3831. 

Construction begins summer 2020 on one of the 100th Avenue Northeast Improvements project’s most ambitious tasks: reconstruction of the Cedar Creek culvert. 

DIGEST-winter-2020The existing three-decade-old box culvert blocks salmon and trout from swimming upstream and limits the roadway’s width to three lanes. The new 10-foot-wide, eight-foot-tall culvert will accommodate an extra two lanes of traffic and, at the same time, provide access to a mile of upstream habitat for trout and salmon.  Reconstruction of the Cedar Creek culvert is the first in a series of Phase I improvements the City will be implementing along the corridor’s northern half-mile, between Northeast 139th and 145th streets. 

Other Phase I improvements include separated sidewalks and elevated bike lanes along both sides of the corridor. The first phase will also optimize traffic flow and safety at 100th Avenue Northeast’s intersections with Northeast 139th, 145th streets and Simonds Road.

The 100th Avenue Northeast Study is available to review under important information on the sidebar of this webpage.  The City's Public Works staff hired the consulting firm of Concord Engineering to perform a study of the 100th Avenue Northeast Corridor. The Study analyzed safety improvements for pedestrians, general travel lane configurations, and associated environmental issues between Northeast 132nd and Northeast 145th Streets. Other considerations will include traffic flow, and future anticipated growth.  The final product from the Study will be used as the basis for future grant funding opportunities.  

July 6, 2020: Interwest Construction begins Cedar Creek project on 100th Avenue Northeast, just south of the Simonds Road intersection.
July 22 - August 12: Interwest closes a short section of 100th Avenue Northeast for 23 consecutive days to install the concrete box culvert
October: Interwest replants native vegetation along Cedar Creek's banks.
November 2020 - December 2021: A Kirkland contractor implements Phase I's remaining improvements.

Related Documents
•    September 2015 Folio [PDF]
•    100th Avenue Corridor Study [PDF]

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