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Improvements are planned for the intersection of State Route 3 at Mason Lake Road.
After an in-depth review, WSDOT developed a safety plan for this intersection. The plan outlines ways to help manage travel speeds and reduce conflict points. A conflict point is where vehicles cross, merge, or diverge.
WSDOT is proposing a single-lane roundabout on SR 3 at the Mason Lake Road intersection near Shelton. The goal is to reduce and prevent crashes.
This online open house is available through May 14, 2025. You can ask questions and provide comments at the end of the open house.
Roundabouts use physical features to help slow the speed of vehicles.
The proposed single-lane roundabout has splitter islands. Splitter islands are designed to slow and direct traffic into the roundabout.
The center island and outer curbs are raised. They are drivable surfaces. This feature allows the roundabout to accommodate all legal sized loads. This includes fire trucks, semi-trucks, buses, farm vehicles, and logging trucks.
