Skip Top Navigation

SR 410 - Bridge 410/101 Bridge Elements Repair

Countdown to Construction
This project is now in construction phase
View larger project map

Check out more photos of the damage and temporary repairs to the SR 410 White River Bridge.


May 2016

  • WSDOT thanks drivers in the Enumclaw and Buckley areas for their patience during the April closure.
  • Questions or comments? Email us.
  • Sign up to receive email updates about this project and other South King County topics.


Repair work on the State Route 410 White River Bridge between Enumclaw and Buckley required a full closure of the bridge from 10 p.m. Friday, April 15 to 12:05 p.m. Wednesday, April 20. The closure was originally scheduled to occur April 15-23.

Damage to the bridge’s overhead support structure was discovered during a routine inspection in April 2015, requiring an emergency seven-day closure for temporary repairs. Engineers believe an over-height load struck the bridge in the westbound lanes.

Why is WSDOT repairing the SR 410 White River Bridge?

Built in 1949, the steel truss bridge carries approximately 20,000 vehicles a day and is an important 10-minute link between Enumclaw and Buckley. Without the White River Bridge, the next-fastest route between the two cities takes at least 45 minutes via State Route 164, State Route 18, State Route 167 and SR 410.

SR 410 is also a cross-state route during the summer months, serving as a primary gateway to Mount Rainier National Park. 

WSDOT inspects the SR 410 White River Bridge every other year as part of its bridge inspection program. During a biennial inspection on Saturday, April 4, 2015, bridge inspectors discovered damage to several support beams. Engineers believe an over-height vehicle hit a horizontal beam approximately 15 feet 6 inches above the westbound lane.

Immediately following discovery of the damage, WSDOT crews closed the bridge for one week so workers could install steel rods to help carry the load of the damaged support beams. Crews also straightened the damaged horizontal beam using a heat-straightening method by applying controlled heat in repetitive, heating-and-cooling cycles. Once straightened, the beam was secured to vertical beams.

What are the challenges we faced?

  • Timing - Due to the temporary nature of the repairs made to the bridge in April 2015, it was important for WSDOT to complete permanent repairs.
  • Emergency services - WSDOT is closely coordinated with area hospitals, Washington State Patrol, Muckleshoot Tribe, the cities and fire departments of Enumclaw and Buckley, along with King and Pierce County Sheriffs offices, to ensure they were able to respond to emergencies. The fastest alternate route around the construction area quadruples the drive time between Enumclaw and Buckley.

What did drivers face?

A full closure of the bridge was scheduled to occur from 10 p.m. Friday, April 15 to noon on Saturday, April 23. The closure schedule was agreed upon following discussions with Senator Pam Roach and the Enumclaw Chamber of Commerce. In the end, the closure lasted from 10 p.m. Friday, April 15 to 12:05 p.m. Wednesday, April 20. 

There were single lane closures with alternating traffic across the bridge in the days leading up to the full closure. No other full closures are planned.

The same detour used during the emergency closure in April 2015 was used for this project. Depending on traffic, the detour route could take 45 minutes or longer.

The End Result

Repairs will extended the useful life of the bridge for years to come, creating safer driving conditions for the thousands of travelers who use it each day.

Project Benefits

  • Improved safety - Repairing the bridge improves safety for the approximately 20,000 vehicles that travel this portion daily.
  • Access - With no convenient alternate routes between Enumclaw and Buckley, repairing the bridge preserves an important lifeline for residents and businesses.

What is the project timeline?

  • August 2015 - Project is advertised for competitive bidding.
  • Aug. 31, 2015 - The project was awarded to Abhe & Svoboda, Inc.
  • Nov. 5, 2015 - WSDOT met with businesses and Senator Pam Roach to review the original closure schedule and create a revised schedule.
  • April 15-20, 2016 - Repair work completed.

Financial Information

Financial Data for PIN 141001M
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $1,926
Total $1,926

Project signage will reflect the cost of construction engineering, project bid award and sales tax.

How can I get more information?
Mike Askarian
WSDOT Project Engineer
Phone: 206-768-5861

Kris Olsen
WSDOT Communications
Phone: 206-440-4704

Justin Fujioka
WSDOT Communications
Phone: 206-440-4473

back to top