Target Zero is WSDOT’s safety improvement program. It aims to reduce serious and fatal crashes on state highways. The program focuses on two aspects: crash Reduction and crash prevention.
Studies show that roundabouts are safer than traditional traffic signals or stop signs. They accommodate vehicles of various sizes. This includes emergency vehicles, buses, bicycles, semi-trucks with trailers, and farm and logging equipment.
WSDOT routinely reviews rural area intersections on its state highway system to find ways to reduce potential crashes. We analyze locations that are at the highest risk for severe crashes. Once we identify those intersections, WSDOT develops a plan to reduce crash potential.
December 2024 - January 2025
Data collection and WSDOT coordination
February - April 2025
Analysis and alternative development, advisory committee coordination, community engagement
May 2025
Final project recommendations and documentation
Summer 2025
Project design begins
The roundabout project is funded through the Highway Safety Improvement Program (HISP) and is estimated to cost $5.9 million. Costs are an early estimate. They are subject to change based on final design factors and project award.
WSDOT plans to design a single-lane roundabout at the intersection beginning in the fall of 2025. Construction is currently scheduled to begin in the summer of 2026. Construction schedules are subject to change.
Conceptual drawing for proposed roundabout at SR 3 and Mason Lake Road.
The proposed single lane roundabout has several features. It includes a raised shoulder on two sides of the intersection. It has a center island, splitter islands and shoulder curbing. These are drivable surfaces. This allows larger vehicles and emergency vehicles to access the roundabout.
The center island is 50 feet in diameter. It also features drivable curbing.
