The Washington State Department of Transportation (WSDOT) began construction on the Nisqually River Bridge on September 15, 2026. The project will replace the aging structure with a new, safer bridge to handle modern traffic volumes. The bridge connects Olympia to the southern parts of Thurston County and serves as a key route for commuters, emergency vehicles, and commercial traffic.
WSDOT officials stated the bridge replacement will improve safety and reduce congestion. The project includes new approaches, improved drainage, and modern safety features. Construction is expected to take two years, with temporary traffic patterns in place during the work. Local residents should expect delays during peak hours, especially in the morning and evening commutes.
The project was approved through a state transportation budget allocation. WSDOT plans to update the public on construction milestones through their website and local media. Residents can call 800-437-7623 for real-time traffic updates.