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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. For information about general construction projects, visit the parkwide construction page.
Project timelines and impacts are subject to change. Consult the information below to help plan your trip. Construction information updated October 7, 2026.
Plan Around Construction
View of Swan Pond
NPS / J. Bonney
Visit the Trip Ideas page for suggestions on how to make the most of your time at Grand Teton National Park in 2027!
Moose-Wilson Road (between Laurance S. Rockefeller Preserve & Moose) - Closed to all use.
Teton Park Road Roundabout at Moose Entrance Station - Delay of 20 minutes, not including entrance station wait time.
Changes to Timelines and Impacts
Project timelines and impacts are subject to change. Access to minor areas including turnouts, viewpoints, and overlooks may be reduced to facilitate construction projects nearby. Stop by a visitor center on the day of your visit for more information.
Upcoming Construction Schedule near Moose
NPS
Map and schedule of construction. The numbers on the table correspond with the numbers on the map.
Detailed Information for 2026 Road Projects
Highway 26/89/191 near Moran Junction
Project Details: Construction is taking place on US Highway 26/89/191, otherwise called the Outer Park Road, south of Moran Junction to address river bank erosion and protect the road near the confluence of the Snake River and Buffalo Fork.
Timeframe: October-December 2026
Impact: Delay of 20-minutes in both directions.
Traffic will be controlled with a temporary stop light and alternating one lane of travel.
Learn more about why construction is needed on US Highway 26/89/191 at the confluence of the Snake River and Buffalo Fork.
Aerial view of US Highway 26/89/191 looking north towards Moran Junction with the Snake and Buffalo Fork Rivers.
NPS
Aerial view of a car transiting US Highway 26/89/191 where the Snake and Buffalo Fork Rivers are close to roadway edge.
NPS
Aerial view of US Highway 26/89/191 look south towards Elk Ranch Flats with the Snake and Buffalo Fork Rivers.
NPS
Project Update
Construction has started on US HWY 26/89/191 just south of Moran Junction, with 20 minute delays in place as crews work to stablize the roadbed next to the Snake River.
10/15/26
Vehicle approaches temporary traffic light at the Highway 26/89/191 construction site.
NPS/S. Morgan
Vehicles travel through construction zone on Highway 26/89/191. Stabilization of the roadbed due to erosion is underway in this area.
NPS/S. Morgan
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 – June 19: Closure between Laurance S. Rockefeller Preserve and Moose.
June 20– September 7: Delay of 45 minutes or longer with temporary closures possible between Laurance S. Rockefeller Preserve and Moose.
September 8 – November 15: Closure between Laurance S. Rockefeller Preserve 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 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.
Construction taking place at new Death Canyon Trailhead.
NPS/DeLong
Project Update
Construction of the new Death Canyon Trailhead continues with the installation of the first vault toilets.
The old Death Canyon Trailhead remains closed to all traffic, including pedestrians. Access to backcountry destinations is possible at Granite Canyon Trailhead or Laurance S. Rockfeller Preserve. Parking is limited.
As of 8/20/26
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 northbound Moose-Wilson Road traffic to transition seamlessly to the Teton Park Road without passing through another entrance station.
Timeframe: May 2026 – June 2027
Type of Impact: Delay and Closure
Ancticipated Summer 2026 Schedule
May 1 – November 15: Delay of 20 mins, not including entrance station wait time.
Installation of a temporary detour on the Teton Park Road which will facilitate safe traffic flow during future stages of the Teton Park Road Roundabout project.
NPS
Project Update
Construction on the Teton Park Road Roundabout at Moose Entrance Station continues. Installation of a temporary detour, will facilitate safe traffic flow during the next stages of the project, is nearing completion.
As of 10/9/26
Completed Summer 2026 Projects
Structural improvements have been completed on North Park Road, with several new portions of pavement between Lizard Creek Campground and Leeks Marina.
NPS
North Park Road
Project Details: Teton Park Road underwent 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: COMPLETE
Common Construction Questions
Find answers to commonly asked questions about the construction taking place this summer.
Construction takes place during the warmest months of the year, as it is otherwise impossible to carry out work due to signifficant snow fall, sub-zero temperatures, and other factors during winter months which limit site access, endanger worker safety, and make material transport difficult.
Construction projects taking place this summer are largely related to one another. For example, three seperate work sites in the southern region of the park are all a part of the Moose-Wilson Rd. construction. Improvement projects are being carried out ahead of Grand Teton's centennial in 2029 in an effort to ensure public access while protecting important resources during this landmark year - and for the next 100 years.
Construction timelines and schedules have been made to maximize the warm weather, attempting to complete as much work as possible to ensure project completion and redcued visitor impacts in future seasons.
The park is always planning for the future, and we need your input.
Last updated: October 15, 2026
Park footer
Contact Info
Mailing Address:
P.O. Box 170
Moose,
WY
83012
Phone:
307-739-3399
Talk to a Ranger? To speak to a Grand Teton National Park ranger call 307–739–3399 for visitor information Monday-Friday during business hours.
