133rd Ave NE Grid Rd Ext & Roundabout

The City of Woodinville has completed the extension of 133rd Avenue NE - an important addition to the downtown street grid that strengthens local and regional connections.

As part of this improvement, a new roundabout is being built at the intersection of Woodinville-Snohomish Road and Little Bear Creek Parkway (NE 177th Place), enhancing traffic flow and improving overall intersection safety.

The project also features a dedicated pedestrian and bicycle tunnel beneath the roundabout. The underground crossing allows the Eastrail users to pass safely and seamlessly through the roundabout, maintaining uninterrupted access for trail users while minimizing conflicts with vehicles.

Key Benefits

• Smoother Travel, Every Day: The roundabout will keep vehicles moving more smoothly than traditional signalized intersections, reducing backups and improving travel times.
• Reduced Congestion: Provides an alternative route through downtown to help relieve pressure on the heavily traveled NE 175th Street corridor.
• Safe Crossings for People, Not Just Cars: The dedicated Eastrail Trail tunnel beneath the roundabout ensures the public can cross safely, separated from vehicle traffic.
• Better Downtown Access: Improves connections to and from downtown, supporting access for drivers, cyclists, and pedestrians alike.
• An Open Canvas for Nature and Art: Creates space for improved landscaping, pollinator pathways, public artwork, and future enhancements along the trail corridor.

Public Art Roundabout Selection

Unlocking the Eastrail Corridor

The roundabout and tunnel project is the first phase of Woodinville’s broader Eastrail Corridor initiative, a 1.7-mile multi-use trail connecting Woodinville to the regional Eastrail system. This roundabout project resolves a critical access and infrastructure challenge, unlocking the corridor and enabling future phases of the Eastrail vision.