Home / Disasters and Accidents / New System Guards White River Bridge
New System Guards White River Bridge
21 Aug
Summary
- An over-height detection system is now operational on the SR 410 White River Bridge.
- The system alerts vehicles that exceed the 14-foot bridge clearance.
- The new system cost approximately $400,000 and is funded by WSDOT.
A new over-height detection system has become operational on the State Route 410 White River Bridge, following several weeks of construction that concluded on Thursday, August 20, 2026. This system is designed to alert vehicles that may be too tall for the bridge. The decision to implement this technology was made after a significant incident in 2025 when a semi-truck struck the bridge structure, causing substantial damage and leading to a two-month closure.
The closure in 2025 had severe repercussions, including a 50% drop in revenue for local businesses and considerable disruptions for commuters. The new detection system utilizes sensors to identify vehicles exceeding the 14-foot clearance. If a vehicle is too tall, flashing lights and an audible bell are triggered, advising drivers to stop safely and contact law enforcement.
The estimated cost for this new detection system was $400,000, with funding provided by the Washington State Department of Transportation (WSDOT) from existing budgets. While this system adds a layer of protection, WSDOT emphasizes that driver responsibility for knowing vehicle height and securing loads remains paramount in preventing bridge strikes. A vertical clearance trip planner is also available online for drivers.
