Road Construction and Infrastructure Project Work

Road reconstruction typically requires warmer weather. In this part of the country that means road construction overlaps with the primary visitor season of May through October. In the summer of 2025 there will be several road construction projects that may impact travel times within the Glacier National Park area.

Many Glacier–Swiftcurrent

The road past Many Glacier Hotel at the T-intersection will be closed due to construction on the Swiftcurrent Water Distribution System and Swiftcurrent Spur Road rehabilitation. The construction area is closed to vehicles, bikes and foot traffic. Construction began in the fall of 2024 and will continue through mid-May 2026.

Trail access will still be allowed for trails such as Ptarmigan Tunnel (and points beyond), Iceberg Lake, and Swiftcurrent Pass. However, due to extremely limited parking during construction in the Swiftcurrent area, the park will restrict personal vehicle access into Many Glacier and provide a temporary shuttle service for hikers to access Many Glacier and Swiftcurrent. From July 1, 2025 to September 21, 2025, no general public entrance will be allowed in Many Glacier without a shuttle, commerical service, or lodging reservation. The only parking available during the closure will be at Many Glacier Hotel, and will be set aside for visitors with lodging, horseback riding and boating reservations.

To use the hiker shuttle service, hikers will need to obtain a timed ticket for their party to board the shuttle. These tickets will be available on Recreation.gov beginning on June 24, 2025. More details on the Many Glacier hiker shuttle service are available here.

Camping at Many Glacier Campground will not be available in 2025 due to construction.

Many Glacier Construction Project Map

A map of the Many Glacier area highlights the closed area in yellow dashes. Trail closures are in red and trail detours are in green and purple. A legend is on the left side of the map. — This map shows the Swiftcurrent construction closure in the Many Glacier Valley. It highlights trail closures in red and trail detour routes in green and purple. No vehicle, bike, or foot traffic is allowed in the closure area.

North Fork
Timeframe of Road Work and Project Construction in Affected Location (project dates highlighted in yellow)		June	July	Aug	Sept	Oct	Nov
Inside North Fork Road	Grading and road work throughout the summer. Major road work between Camas and Anaconda Creek could impact hiker/biker travel.
Going-to-the-Sun Road
TBA
Many Glacier
Many Glacier–Swiftcurrent	In 2025, the road past the Many Glacier Hotel will be closed to all traffic. Access to area trails will be allowed via a pedestrian detour route.
Other
Park Headquarters	Rehabilitation of roads and parking lot. Minimal impacts to visitors.
Fiber Optic Installation–West Glacier	Minimal traffic delays. Possible single lane traffic on Going-to-the-Sun Road up to Grinnell Drive for 2–3 weeks.	Dates TBD
Fiber Optic Installation–East Glacier and St. Mary	Possible single lane traffic along MT-49 to East Glacier Ranger Station for 1–2 weeks. Minimal traffic impacts expected in St. Mary.	Dates TBD
Fiber Optic Installation–Many Glacier	Possible single lane traffic on Many Glacier Road. Work completed within 4–6 weeks.	Dates TBD