Road Construction and Delays
North Entrance at Gardiner MT: Excavation continues along the entrance road through Gardiner. Businesses are open. Traffic is being diverted to new alignments. Visitors are still able to stop at Roosevelt Arch using the flagger escort.
Norris to Mammoth (Norris to Golden Gate): Loose gravel--motorcyclists use EXTREME caution!
Old Faithful to West Thumb (Craig Pass—Isa Lake Bridge Replacement: June 11 through September 10—expect traffic delays up to 30 minutes. (Visitors are able to access Lone Star Geyser on the west side and DeLacy Creek trailhead on the east side.)
Motorcyclists are advised to slow down and use extreme caution on loose gravel in construction areas.
General Road Construction Information
These needs are now being addressed under a 20-year, $300 million Federal Lands Highway Program for Yellowstone National Park. In addition, park road repair crews will be working in other areas of the park throughout the seasons.
Yellowstone reconstructs its roads during the spring, summer and fall seasons, which means you will likely encounter delays depending on your destination. It's a good idea to check with our visitor centers or entrance stations for current information and possible delays.
Recommended Road and Construction Resources Before Traveling
In the summer there is often road construction occurring on the roads leading to the park in the surrounding states. Check below for numbers and websites with updated state road construction information.
Information about Montana road projects.
Grand Teton National Park Info
Other Numbers to Call for Road Information