Spiketon Ditch Bridge Closure Update
By Travis Curry, Regional Trails Planner, Pierce County Parks
The Spiketon Ditch Bridge on the Foothills Trail was demolished in June 2024 due to extensive structural failure. Pierce County Parks will construct a new permanent bridge over Spiketon Ditch. Pierce County Parks has selected a contractor and final permitting is underway. Construction is anticipated to start in Spring 2025. The bridge is expected to open by the end of Summer 2025. To receive updates about this project and other Foothills Trail alerts, please sign up to receive email updates at www.piercecountywa.gov/FoothillsAlerts.
Current Status:
On May 28, 2024, the Pierce County Executive issued an Emergency Proclamation allowing expedited demolition of the bridge to protect public safety. Replacement options are not simple, fast, or cheap. Extensive engineering and permitting are required to construct the new bridge over a waterway. Pierce County Parks is working across County Departments and permitting agencies to determine the most expedient way to replace the bridge. Pierce County Parks is also looking at all planned trail closure projects to determine whether closures can be aligned to reduce trail impacts in the coming years.
Communications:
The 0.75-mile trail section remains closed from the Lower Burnett Bridge (1 mile east of South Prairie) to 268th Avenue Court East (4 miles west of Buckley). Do not enter the closure area. There are no bicycle or pedestrian detours available through the area. Trail users will have to turn back the way they came.
During the closure, the remainder of the Foothills Trail is open. The following are approximate trail mileages on either side of the closure:
- East Puyallup Trailhead to closure: 17 miles
- McMillin to closure: 12 miles
- Orting to closure: 9 miles
- South Prairie to closure: 1 mile
- Buckley to closure: 4 miles
Please visit the project website for regular updates. Updates will also be provided through the email listserv, social media posts, trail signage, and messaging for partner organizations.
Background:
The original Spiketon Ditch Bridge was constructed in 2009. It was designed as a wooden bridge to reflect the historic character of the railroad corridor, consistent with the adopted trail design guidelines in the Foothills Trail Master Plan. In 2016, a similar bridge approximately 0.3 mile east was demolished by treefall and replaced with a steel plate arch structure. Every two years, Pierce County’s Bridge Engineering Team inspects all bridges in the park system. In 2023, the team identified progressive bridge damage and recommended further analysis. A bridge assessment was ordered, which showed potential failure, and the bridge was closed in late November 2023.
An assessment by the bridge manufacturer found that the original bridge stressed under its own weight, and additional load increased the chance of collapse.
For project updates and information on other projects throughout the Pierce County Parks network, visit the Projects & Plans website at www.piercecountywa.gov/5340/Projects-Plans.