Big things are happening along Renton’s streets — and commuters have good reason to celebrate. Construction has officially begun on King County Metro’s RapidRide I Line, a new rapid-transit corridor coming to Renton that promises faster, more reliable bus service for residents across the city.

The City of Renton announced the construction milestone in mid-July 2026, marking a significant step forward for public transportation in the area. Metro Matters, King County Metro’s official blog, also confirmed the update in its July 2026 construction report, signaling that the project is actively moving from the planning phase into real, on-the-ground work.

The RapidRide I Line is part of King County Metro’s broader RapidRide expansion effort, which aims to bring frequent, all-day bus rapid transit service to more communities across the region. For Renton, this means improved connections to jobs, schools, healthcare, and other destinations — all with the speed and convenience that RapidRide lines are known for, including enhanced stops, off-board fare payment, and more frequent service.

For a city that has long been an important hub in the greater Seattle metro area, the arrival of RapidRide-level service is a meaningful upgrade. Renton residents who rely on public transit — whether for daily commutes or everyday errands — stand to benefit directly from shorter wait times and a smoother ride.

While construction does bring the temporary inconveniences that come with any infrastructure project, the long-term payoff for the community is substantial. Improved transit access can reduce traffic congestion, lower transportation costs for families, and make Renton more connected and accessible than ever before.

Stay tuned to the City of Renton and King County Metro for ongoing construction updates as the RapidRide I Line continues to take shape — Renton’s transit future is being built right now.

Sources: City of Renton (.gov), Metro Matters