WSDOT begins work to finish SR 520 Montlake Project

The Washington Department of Transportation (WSDOT) has initiated construction on the final segment of the SR 520 Montlake Project, which aims to connect Portage Bay to Interstate 5. This essential infrastructure project is expected to continue through 2030, with pile-driving activities already causing disturbances for local residents. The construction involves the development of two parallel bridges, starting with the northern span. To facilitate the project, tree and vegetation removal is currently underway, and work near Montlake Playfield is scheduled to begin in January 2025. The project has faced significant budget overruns, with the total estimated cost reaching $1.

4 billion, leading WSDOT to seek cost reductions that may result in design changes or a reduction in project scope. Residents should prepare for various closures and traffic disruptions as construction progresses over the next several years, reflecting the growing demand for improved transportation infrastructure in the Seattle area.