Public Works Projects

Current Arlington Public Works Projects

Public Works Improvement Projects include projects at multiple locations in Arlington. These projects are currently in design, bidding, pre-construction or construction phase.  The benefits of these projects include the upgrading of utilities to improve service and support new development; improving highways, arterials, and neighborhood streets; and addressing safety issues. To get information on specific projects please click on the links to the left to bring up the project page. 

If you have any questions or concerns regarding city projects, please contact us at cityprojects@arlingtonwa.gov or 360-403-3544.

Current Projects are in the left hand column. 

You can view 2022 Projects by clicking here: 2022 Public Works Project Flyer

Traffic and Current Project Updates

  • 40th Ave / SR 531 Intersection

    • March 23, 2022 - Estimated construction start date is April 4, 2022. 
    • April 1, 2022 - Construction will begin on Monday, April 4th. During the first week of construction the City’s contractor, Interwest Construction, will work Monday thru Friday from 7:00 AM to 7:00 PM.  Work will consist of mobilization, surveying the project area, and saw cutting at the intersection corners. The saw cutting will be completed during non-peak travel hours along the east bound lanes early morning and the west bound lanes mid-morning to early afternoon. This work will require lane shifts. Please expect delays if traveling along SR 531 during construction hours.
    • April 8, 2022 - Next week, work will continue between the hours of 7:00AM to 7:00PM, Monday through Friday.  Work will include the moving of a communication pole, installation of the temporary pedestrian access, installation of the new storm system, and removal of the curbs and sidewalks. The curb and sidewalk removal will be completed during the hours of 7:00AM to Noon along the eastbound lanes, and in the early afternoon for the west bound lanes. This work will require lane shifts. Please expect delays during construction hours.
    • April 15, 2022 - Next week work is scheduled Monday – Friday from 7:00 AM to 7:00 PM. Work will consist of removing curb and sidewalk on the south side of 172nd St, road excavation for the bus pullouts, and begin electrical installation of the new signal system.  The roadwork will require lane shifts during the morning hours, please expect delays.
    • April 18, 2022 - Right and left hand turns heading northbound out of the Gateway complex at 40th Ave will be closed until the demolition of the curbs on the south side of 172nd St is complete during the construction hours of 6:00 AM to 6:00 PM.  Traffic is currently flagger controlled, please expect delays when in this area.
    • April 22, 2022 - Next week ICI will continue work on the south side of the intersection with the installation of the new storm system, addition of subgrade material, begin to build the retaining wall on the southeast corner, and continue the electrical installation for the new signal system. Left turns heading north from 40th Ave onto 172nd St will be prohibited while this work is being completed. Please expect delays in travel times and remember to drive slow through construction zones.
    • April 29, 2022 - Next week work will continue with the electrical conduit installation for the new signal system. Impact to traffic is estimated to be minimal.
    • May 6, 2022 - Next week work will continue on the installation of the electrical conduit, fine grading for the curb and sidewalk on the SE corner, and begin formwork for curb and sidewalk on the NW, NE and SW corners. Left turns heading north from 40th Ave onto 172nd St will be prohibited while this work is being completed. Please expect delays in travel times and continue to drive slowly through construction zones for everyone’s safety.
    • May 13, 2022 - Next week work will continue with the electrical conduit installation.  All traffic movement will be open at the intersection of 40th and 172nd St. Please continue to expect delays in travel times and remember to drive slowly through construction zones for everyone’s safety.
  • 43rd Ave / SR 531 Roundabout

    • March 30, 2022 - Estimated construction start date is April 4, 2022.
    • April 1, 2022 - The 43rd Ave Roundabout project will begin construction on Monday, April 4th. Construction will occur Monday thru Saturday from 6:00 AM to 6:00 PM. The contractor for the project, Clark Construction, will be diverting traffic around 43rd Ave during the first phase of construction. The detour will go into place Sunday evening at 6:00PM.  
    • April 8, 2022 - Next week construction will continue with the installation of the new stormwater system, site excavation and grading, and continued removal of the curb and sidewalks.  Construction is scheduled to occur Monday-Saturday from 6:00 AM to 6:00 PM. Detour Maps to 43rd Ave are available on the project website for business access and residential access.
    • April 15, 2022 - Next week scheduled work will include continued excavation, installation of electrical conduit and light pole bases, and the installation of crosswalk signs. Construction is scheduled to occur Monday-Saturday from 6:00 AM to 6:00 PM. Detour Maps to 43rd Ave are available on the project website for business access and residential access. 
    • April 22, 2022 -  Next week’s work includes continued electrical work, installation of fiber optic cable vaults, installation of a WSDOT camera pole, and placement of roadway base course. Construction is scheduled to occur Monday-Saturday from 6:00 AM to 6:00 PM. 
    • April 29, 2022  - Next week’s work includes continued electrical work and addition of subgrade material, installation of fiber optic cable vaults, installation of a WSDOT camera pole, and installation of the north bio swale for the stormwater system.   Construction is scheduled to occur Monday-Saturday from 6:00 AM to 6:00 PM. 
    • May 6, 2022 - Next week’s scheduled work includes the completion of the drainage system on the southwest corner, grading for curb and gutter, and begin to form and pour the curb and gutter. Construction is scheduled to occur Monday-Saturday from 6:00 AM to 6:00 PM.  
    • May 13, 2022 - Next week’s scheduled work on the south side includes continued electrical and stormwater work. On the north side, work includes the installation of the bio swale, fiber vault, WSDOT camera system, and grade and pour for the sidewalk, ADA ramps, and splitter island. Construction is scheduled to occur Monday-Saturday from 6:00 AM to 6:00 PM. 

Snohomish County Projects

Washington State DOT Projects