Project overview
This project will resurface the northbound and southbound lanes of State Route 99 from South 272nd Street to SR 516 to extend the pavement service life. Crews will grind and inlay new Hot Mix Asphalt (HMA), perform pavement repair, traffic loop replacement, striping and traffic control. Pedestrian curb ramps will be evaluated and updated as necessary to meet the Americans with Disabilities Act and current accessibility standards. Additionally, this project is subject to WSDOT’s Complete Streets requirements. We will be working to incorporate as much active transportation facilities as feasible within the project delivery timelines. However, it is likely some active transportation facilities needed to meet the Complete Streets requirement will be implemented at a later date. This project will also require an Environmental Justice Assessment.
What to expect
During construction, crews will grind the road surface and inlay new HMA. Work will primarily be performed at night. Throughout the project, travelers can expect directional and double-lane closures along SR 99. Single-lane closures at some locations for curb ramp construction are possible.
Environmental justice assessment
An Environmental Justice Assessment (EJA) will be completed for this project. These assessments are conducted for significant agency actions (SAAs) that could harm the environment or impact how environmental benefits are distributed to overburdened communities (OBCs) or vulnerable populations (VPs). An EJA guides decision-making to ensure a fair distribution of environmental benefits, reduce environmental harms, and address disparities in environmental and health outcomes. Meaningful engagement with affected communities is a crucial aspect of this process.
This project will pave and make ADA improvements in both directions of SR 99 from South 272nd Street to SR 512.