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 Email City Projects or 360-403-3544.

Current Projects are in the left-hand column. 

You can view our current year Projects by clicking here: 2025 Public Works Project Flyer

Traffic and Current Project Updates

  • Division / Broadway Restoration Project

    • February 20, 2026 - Final roadway striping will be installed in the spring when the temperatures increase, and pavement conditions are dry.   

  • Smokey Point Blvd / 188th St Roundabout

    • February 20, 2026 - This week the Smokey Point Blvd/188th St Roundabout project continued Tuesday through Friday with road demolition and excavation along with the installation of the new sewer main. Next week construction is scheduled to occur Monday –Thursday between the hours of 7:00 AM and 7:00 PM. Work will include continued installation of the new 18” sewer main, road demolition and excavation, installation of the new water main, and tie-in of the new sewer main to the sanitary sewer lift station.  Please continue to use the designated detour route when traveling in this area. Local and business access will be allowed at all times during this phase, however, please expect delays if traveling in the work area. No thru traffic will be allowed. The designated detour route is not a truck route. All trucks will need to use alternate designated truck routes during construction.

  • 74th Ave Trail  

    • February 20, 2026 - The lighting system is currently on schedule to arrive in April. 

  • Snohomish County Public Works Projects
  • Snohomish County 2026 Pavement Preservation Road List

Washington State DOT Projects

  • WA State Dept. of Transportation Projects
  • SR-531 (172nd Street NE) Widening: In July 2019, WSDOT began designing the widening of SR-531 to four lanes between 43rd Avenue NE and 67th Avenue NE. SR-531.
    March 2024: Due to staffing shortages, WSDOT has hired HNTB Corporation, a large national consulting firm, to assist with bringing this project to 30% design level. Once at 30% design, the project will be advertised as a design-build project. This project will likely be constructed in phases by roundabouts and linking roadway segments (43rd to 51st, 51st to 59th, and 59th to 67th).