National Park Service LogoU.S. Department of the InteriorNational Park ServiceNational Park Service
National Park Service:  U.S. Department of the InteriorNational Park Service Arrowhead
Yellowstone National ParkBull moose grazing in stream.
view map
text size:largestlargernormal
printer friendly
Yellowstone National Park
Road Construction Delays and Closures

For more road information, including what roads are open during each season, see our Operating Hours and Seasons page. Call the 24-hour Current Road Report hotline at (307) 344-2117 for the latest information on conditions affecting roads within the park. See the 2008 Road Improvements Map for projects that may affect travel this summer.


 
Map of road closures in winter

Some Park Areas, Entrances & Roads are
Not Accessible Year-round

From early November through late April, all roads south through the park are closed to wheeled vehicles, including the road to Old Faithful Geyser.

Flashing black roads are closed to wheeled vehicles during the winter season.


 
 
Simple map of road system in Yellowstone Park.

Beartooth Highway (US 212)

Cooke City to Long Lake (17 miles east of Hwy 296 jct.) remains open. The Beartooth Highway is closed at Long Lake. Motorcycles should use extreme caution. For construction updates on this highway only, call 888-285-4636.






 
Map of road construction in Yellowstone.

South Entrance into Grand Teton
(US 89/191/287)
Work will begin on or about Monday, July 28, and continue through the summer/fall season with 30 minute delays on weekdays (possible weekend work). For construction updates on this highway only, call 307-739-3614.

 


 

Highway 191 in Gallatin Canyon, Montana

Montana Department of Transportation advises that construction crews are working at the West Fork Gallatin River Bridge and there may be occasional flagging stations with 10 – 15 minute delays.

Other work may be underway in the Canyon during the winter months depending on weather conditions. And, the detour at Swan Creek will remain in place through the spring of 2009. Speed limits in that area are posted at 35 MPH and are strictly enforced due to reduced visibility.

During the safety improvement projects truck traffic in Gallatin Canyon is restricted to local deliveries only. Through loads must use Hwy 287. Local loads over 10.5 ft require permits and flaggers at the West Fork Bridge.

Road condition updates are available via:

  • Signs located throughout the construction area between Four Corners and West Yellowstone
  • The project website at www.mdt.mt.gov/US191
  • The MDT mobile radio station with road advisories on AM 1610 between mile posts 70 and 74. 

With construction underway in Gallatin Canyon, especially the rock excavation in the evening hours, it’s advisable to allow yourself some extra time.


 

General Information

Road construction is perennial in Yellowstone National Park. In general, park roads have either been recently repaired or reconstructed, or are scheduled for repair or reconstruction. Approximately 80% of main park roads (about 185 mi or 295 km) are in a structurally deficient state, with poor quality road bases failing under the weight, speed, and volume of modern traffic for which they were not designed. Harsh winter weather and short construction seasons provide additional challenges.

These needs are now being addressed under a 20-year, $300 million Federal Lands Highway Program for Yellowstone National Park. In addition to the major construction addressed below, park road repair crews will be working in other areas of the park throughout this and subsequent seasons. Thank you for your patience with our road construction efforts.

Other road closures or delays are possible. For current road information, call: 307-344-7381.

Additional construction zones and schedules may be announced as construction contracts are awarded.

We recommend that visitors check the following resources before traveling:

 
Map showing road closures, construction and delays
Bison in Yellowstone.  

Did You Know?
There are more people hurt by bison than by bears each year in Yellowstone. Park regulations state that visitors must stay at least 25 yards away from bison or elk and 100 yards away from bears.

Last Updated: December 01, 2008 at 16:33 EST