Spirit Lake Infrastructure Project Trail Closures

The replacement of the Spirit Lake Tunnel Intake Gate and Geotechnical Drilling project to support safe operations and maintenance of the Spirit Lake infrastructure will continue in 2025. Construction will require weekday recreation trail closures within the Mount St. Helens National Volcanic Monument during the multi-year construction effort.

The trails listed below will be closed Monday through Friday and open on Saturdays, Sundays, and all federal holidays from May 15 through October 31. The Windy Ridge Contractor Staging Area will be closed seven days per week from May 15 through October 31. Both closures will apply from 2024 through 2027. 

Forest Order: View Forest Order No. 06-03-01-24-05: Truman Trail Network; 1E, 207, 207A, 216D, 216E and Forest System Road 99 Extension Entry Restrictions.

Restricted areas:

• The southern portion of the Windy Ridge Parking area for contractor staging
• Forest Road 99 extension road from Windy Ridge to the Truman Trail
• Trail #207 – Truman Trail from TR 216E – Windy to TR 1 – Boundary
• Trail #216D – Plains of Abraham from TR216 – Loowit to FR 99 extension Road
• Trail #216E – Windy from TR 207 – Truman to TR 216 Loowit
• Trail #207A – Truman from TR 216 – Loowit to TR 207 – Truman
• Trail #1E – Harry’s Ridge

Access for search and rescue, special use permittees, researchers, and tribes will be coordinated through the Mount St. Helen’s District Ranger.

These temporary closures are needed to implement the project work and ensure a safe work environment. Visitors are asked to respect closures and to recreate in other areas of the Monument during closure periods.

Visitors can expect to see large construction equipment and materials. Dust may be seen from various locations on the Monument. Visitors will encounter large vehicles on Forest Road 99 and are advised to use caution when traveling to the area.

View a vicinity map of Mount St. Helens National Volcanic Monument.