NPS Warns Major Construction Projects Will Cause Summer Traffic Delays at Yellowstone

Image: The Grand Prismatic Spring at Yellowstone National Park, Wyoming. (Photo Credit: Adobe Stock/Lane Erickson)
Image: The Grand Prismatic Spring at Yellowstone National Park, Wyoming. (Photo Credit: Adobe Stock/Lane Erickson)
Laurie Baratti
by Laurie Baratti
Last updated: 5:40 PM ET, Fri April 19, 2024

Yellowstone National Park visitors should be prepared for increased traffic delays this summer due to two major construction projects in one of the country’s most popular national parks. The National Park Service (NPS) has issued a warning to parkgoers, advising them to plan their summer vacations accordingly.

The pair of ongoing improvement projects that are underway center on replacing the Lewis River Bridge and the Yellowstone River Bridge. Work on each of these projects is expected to continue for several months yet, causing potential traffic jams along the park's southern and northern road corridors.

At the Lewis River Bridge, located about 10 miles north of the South Entrance on the South Entrance Road, travelers can expect up to 20-minute delays. From May through the end of October, the roads will be open to wheeled vehicles, but visitors are advised that nearby pullouts and the trail to Lewis River Falls will be closed while work is underway. 

The project, which includes the complete removal and replacement of the Lewis River Bridge with a new-build bridge downstream, began in 2022 and is expected to wrap up in the fall of 2024. Once work is complete, guests can look forward to additional parking and viewing opportunities. 

In the vicinity of the Yellowstone River Bridge, situated near the Tower Junction along the Northeast Entrance Road, parkgoers may experience up to 30-minute delays. The NPS warned that area hiking trails may temporarily close during the construction project, which began last year and is not expected to be completed until 2026. The Northeast Entrance Road is open to wheeled vehicles year-round, but the area’s hiking trails may be temporarily closed for the project’s duration. 

For this project, the NPS is removing the existing "structurally deficient" bridge, built in 1961 and measuring 604 feet long, with a new 1,285-foot-long, 175-foot-high steel girder bridge situated upstream. The NPS advised that area hiking trails may be temporarily closed amid construction, which began last year and is not expected to reach completion until 2026.

This upgrade aims to preserve year-round access to and from the Northeast Entrance, and the communities of Silver Gate and Cooke City, Montana. Featuring new pullouts, paved parking areas and a dedicated route across the new bridge, the finished product will also increase access to various trails, viewpoints and fishing spots, and the Yellowstone River Picnic Area will be expanded. 

The NPS offered various ways for visitors to stay informed of the anticipated delays and closures: 

  • Visit Yellowstone’s website at Park Roads.
  • Call 307-344-2117 for recorded information.
  • Receive Yellowstone road alerts on your mobile phone by texting “82190” to 888-777.


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Laurie Baratti

Laurie Baratti

Assistant Editor

Laurie Baratti is an Assistant Editor for TravelPulse. She is a San Diego-based journalist whose work has previously appeared in publications like TravelAge West, SPACE, Modern Home + Living, Montage, and Sandals Life magazines. Travel writing has long been her passion, and she is always looking for excuses to explore the world outside of her native California. Laurie is also a lifelong equestrian, a proud pet-parent, and an underground advocate of the Oxford comma.

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