Construction of a roundabout and other safety improvements located at the intersection of U.S. Highway 26/89/191 and Gros Ventre Road and Sagebrush Drive in the southern area of Grand Teton National Park will begin on Monday, April 2. Construction activities are planned to continue through the end of November.
Grand Teton National Park Superintendent David Vela said, “There will be traffic impacts related to this safety improvement project, and we highly encourage travelers to plan ahead for minimal delays and to be aware of the construction schedule for related impacts.” Vela said the park is coordinating with Teton County and others to work together to best minimize impacts and provide for safe access for all users as multiple road improvement and safety projects may be occurring this year.
The primary construction activities at the intersection of U.S. Highway 26/89/191 and Gros Ventre Road and Sagebrush Drive will include:
• construction of a roundabout with a landscaped center island,
• creation of a temporary two-lane bypass road with a pathway for use during construction,
• relocation of the existing north-south pathway along U.S. Highway 26/89/191,
• addition of a quarter-mile pathway segment to connect with Sagebrush Drive,
• installation of a formal parking area on the Gros Ventre Road near the intersection,
• installation of a snowplow turnaround on the north side of the intersection, and
• repavement on a short section of the highway south of the intersection to the Gros Ventre Bridge.
During construction, a two-lane bypass with a separated pathway will be maintained to reduce congestion on the highway. Due to reduced speed through the construction zone, travelers should plan for approximately 15-minute delays between 5 a.m. to 8 p.m. and approximately 30-minute delays at night between 8 p.m. to 5 a.m.
During the construction of the temporary bypass, the Gros Ventre Road may be closed for up to five nights in the late spring to early summer from approximately 6 p.m. to 5 a.m. The Gros Ventre Road may also be closed up to two weeks after September 15, 2018, between 9 a.m. and 3 p.m. to complete final roadway improvements. Gros Ventre Road traffic will be rerouted via the Antelope Flats Road during these times.
There will be a temporary pathway closure between the Gros Ventre River Bridge and north of the Gros Ventre Intersection through May 15, and again in late September. Pathway traffic may travel on the roadway shoulder through the Gros Ventre Junction area during the closures.
Any road or pathway closure dates will be confirmed approximately one week in advance of the closure via media release, roadside signs, park road information phone line, park website and park social media.