The roads within Yellowstone National Park, particularly the West Yellowstone park roads, are a crucial part of the visitor experience. As a National Park Touring Enthusiast, it’s essential to stay informed about the current status, any ongoing road improvement projects, and potential construction delays to plan your visit effectively.
Current Status of West Yellowstone Park Roads
Year-Round Openings
The road between Mammoth Hot Springs and the northeast entrance is the only park road typically open to regular traffic year-round, weather permitting. This road closes in winter east of Cooke City, Montana.
Seasonal Openings
The West Entrance opened for regular vehicles on April 19, 2024. The East, Northeast, South, and West entrances will open in spring (April and May 2024) to regular vehicle entrance and travel.
Weather Conditions
Visitors should be prepared for changing weather conditions, especially during the winter months. It’s recommended to check the Natural Resource Conservation Service’s interactive map for current snow depth, snow water equivalent, and other winter safety information.
Road Improvement Projects and Construction Delays
Lewis River Bridge Replacement
This project began in 2022 and is expected to conclude in the fall of 2024. Travelers can expect up to 20-minute delays while the South Entrance Road is open to wheeled vehicles in 2024. Nearby pullouts and the trail to Lewis River Falls will be closed during the construction period.
Chip Sealing
Chip sealing occurs every summer to preserve Yellowstone’s roads. Visitors should plan for delays of up to 30 minutes. It’s important to drive slowly and maintain the recommended speed limit on chip seal pavement to reduce the risk of loose gravel damaging cars or windshields.
Additional Information
Traffic Updates
For up-to-date information on road conditions and closures, visitors can call (307) 344-2117 for recorded information or sign up to receive Yellowstone road alerts on their mobile phones by texting “82190” to 888-777.
Visitor Services
Travelers should check the current opening and closing dates for all campgrounds, lodges, and dining areas in Yellowstone National Park. Operating hours and service levels can change with little notice, so it’s essential to check back often.
Wildlife and Safety
Visitors should exercise caution around all rivers and streams, and be aware of wildlife in the park. Driving with care and following speed limits is crucial to avoid animal deaths and accidents.