Road Construction

Preparing for the Next 100 Years
As Grand Teton National Park approaches its centennial in 2029, parkwide construction projects are improving roads, trails, and visitor facilities to support continued access and stewardship for generations to come.

 

 

Plan Around Construction

 

Visit the Trip Ideas page for suggestions on how to make the most of your time at Grand Teton National Park!

Colter Bay

• Colter Bay is open.
• For easiest access, enter through the Moran Entrance Station.
• Lakeshore Trail, Hermitage Point Trail, and Heron Pond Trail are great hikes with rewarding views.
• Colter Bay is the perfect hub for park exploration and lakeside recreation.
• Colter Bay Village has a visitor center, ranger programs, restaurants, watercraft rentals and more!

Highway 26/89/191

• Also called the Outer Park Road, the highway will be open.
• One of the most scenic drives in Wyoming, the Outer Park Road offers many overlooks and photo opportunities.
• Find park rangers and volunteers along the way!
• Follow posted speed limits and be alert for wildlife at all times of day and night.

 

Current Construction Areas

Anticipated disruptions from May 1 - June 20 are listed below. For road information and updates check the road status page and alerts and conditions page.

Project timelines and impacts are subject to change. Immediate updates will be communicated through the park website.

Death Canyon Road & Trailhead - Closed
Moose-Wilson Road (between Laurance S. Rockefeller Preserve & Moose) - Closed. Expected to open June 20th.
Teton Park Road Roundabout at Moose Entrance Station - Delay of 20 minutes, not including entrance station wait time.
Taggart Lake Trailhead & Trail - Partially Open. Construction Ongoing.
Mormon Row Historic District - Open. Construction Ongoing.

 

Upcoming Construction Schedule

 

Map and schedule of construction.

NPS

Project timelines and impacts are subject to change.

 

Detailed Information for 2026 Projects

 

Moose-Wilson Road Phase II

Project Details: Moose-Wilson Road will be re-aligned north of Sawmill Ponds to meet the new Teton Park Roundabout. Portions will be closed to facilitate safe transport of equipment and materials to Death Canyon Road.

Timeframe: May 2026 - 2027

Type of Impact: Delays and closures

Ancticipated Summer 2026 Schedule

May 1^st – June 19^th: Closure between LSRP and Moose.

June 20^th – Sept. 7^th: Delay of 45 minutes between LSRP and Moose.

Sept 8^th – Nov. 15^th: Closure between LSRP and Moose.

 

Illustration of new Death Canyon Trailhead.

NPS

Death Canyon Road & Trailhead

Project Details: Death Canyon Trailhead will be relocated about one mile from its current location. The trailhead will feature restrooms, hiker staging area, and about ninety paved parking spots. Death Canyon Road will be paved, shortened around one mile, and end at the new trailhead. The decommissioned portion of road will be turned into an extension of the Valley Trail for access to Phelps Lake Overlook and Death Canyon. Hikes into Death Canyon and beyond will be longer as a result.

Timeframe: May 2026 – June 2027

Type of Impact: Closure

Notes: Access to Phelps Lake, Death Canyon, and destinations beyond will still be possible from alternative trailheads, including Granite Canyon and Jackson Hole Mountain Resort. Parking will be limited at the Laurance S. Rockefeller Preserve, with long wait times anticipated.

 

Illustration of new Teton Park Road roundabout.

NPS

Teton Park Road Roundabout

Project Details: Teton Park Road will feature a new roundabout just north of the Moose Entrance Station at the current intersection of Menor’s Ferry Road and the Teton Park Road, enabling traffic to travel on the Moose-Wilson Road without passing through another entrance station.

Timeframe: May 2026 – June 2027

Type of Impact: Delay and Closure

Ancticipated Summer 2026 Schedule

May 1^st – Nov. 15^th: Delay of 20 mins, not including entrance station wait time.

Teton Park Road just north of the Moose Entrance Station may be closed during a two-week period this summer to allow for paving. The park will announce the closure period once more information becomes available.

 

Taggart Lake construction overview.

NPS

Taggart Lake Trail & Trailhead

Grand Teton National Park and the Grand Teton National Park Foundation are working together to renew the Taggart Lake Area.

Taggart Lake Trail, Trailhead, and adjacent areas are undergoing work to improve the visitor experience while safeguarding delicate natural resources at this popular destination.

Taggart Lake Trailhead will remain open throughout this season, though visitors will see ongoing construction work nearby. Trail work on the more popular shorter route to the north is underway and will last the season. This section of the trail will be closed all season. Visitors can access Taggart Lake from the south via the longer steeper route (4.24 miles / 711 feet elevation gain - one way).

Cottonwood Creek Picnic Area will also undergo a refresh later in the summer.

 

Illustration of new Taggart Lake Trailhead.

NPS

Project Details: Taggart Lake Trailhead will be redeveloped to accommodate 140 vehicles, including designated spots for horse trailers and campers. Additional features will include a new hiker staging area, restrooms, and water bottle filling station. The easier shorter route to Taggart Lake from the north will be closed for renewal in 2026.

Timeframe: May 2026 - 2027

Type of Impact: Partial Closure

Notes: Taggart Lake will only be accessible to hikers from the south, via the longer steeper route (4.24 miles / 711 feet elevation gain - one way).

For your safety, do not enter closed areas or use trails that are under construction.

 

Illustration of new Mormon Row parking lot and visitor facilities.

NPS

Mormon Row Historic District

Project Details: Mormon Row Historic District access will be improved with the development of a paved parking lot with designated tour bus parking, restrooms, and shade structures. The area near historic buildings will be improved with designated trails and viewing locations to protect natural and cultural resources that are prone to damage in the area. In 2027, a new Grand Teton Association facility will complete the project.

Timeframe: June 2026 - November 2026

Type of Impact: No impacts to access at this time.

Notes: Visitors will likely hear and see construction equipment in the vicinity of the historic district impacting the viewshed and soundscape of the area.

 

Rendering of new Mormon Row viewing area and pathway.

NPS

Rendering of new Mormon Row viewing area and pathway.

NPS

 

North Park Road

Project Details: Teton Park Road will undergo structural improvements between Leeks Marina and Lizard Creek Campground to help correct pavement buckling and erosion. The section of road is about 7 miles north of Colter Bay and 11.5 miles south of Yellowstone.

Timeframe: Summer 2026

Type of Impact: Delay

Ancticipated Summer 2026 Schedule

Day: Delay of 15 minutes, 6 a.m.-9 p.m.

Night: Delay of 1 hour, 9 p.m.-6 a.m.

Traffic will be controlled with a temporary stop light and alternating one lane of travel.