Teton Mobility Corridor Improvements Project

Teton BUILD brochure

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Teton County Wyoming, along with six government and private partners in Wyoming and Teton Valley Idaho have submitted a major $28 million transportation grant request to the US Department of Transportation BUILD grant program. Wyoming Pathways was the lead nonprofit organization helping in the development of this project and the grant application. The complex application was submitted by the May deadline, and project partners are hopeful these much needed improvements will move forward, helping support economic recovery, and to improve the transportation options for residents and visitors.

The Teton Mobility Corridor Improvements (TMCI) project is located in the Greater Yellowstone Region of Idaho and Wyoming, spanning over 30 miles from Driggs, ID to Jackson, WY through the Teton mountain range. Made up of ID-33 and WY-22 state highways, the corridor connects Teton County, ID to Teton County, WY and provides access to Grand Teton and Yellowstone National Parks that lie to north and attract millions of visitors each year.

Over the past decade, these communities have experienced tremendous growth in population and visitation due to their proximity to world-class recreation and open space. This growth has created new pressures and challenges on the ID-33/WY-22 corridor to support the daily needs of residents and tourists visiting the region.

The project will help implement regional transportation plans that call for building a more balanced multimodal transportation system. The project will include significant new pathways, two new transit centers, new buses, and highway safety improvements.

The 2020 BUILD Transportation grants are to be awarded on a competitive basis for projects that will have a significant local or regional impact. The successful projects will be announced by Secretary of Transportation Elaine Chao in September 2020.

Project Framework
TMCI project components are organized around two key transportation systems along the ID-33/WY-22 corridor. This includes the regional transit system, known as the Southern Teton Area Rapid Transit (START) and the regional pathway network which is part of the Greater Yellowstone Trail.

Southern Teton Area Rapid Transit (START)
START is the transit provider for the Town of Jackson and Teton County, Wyoming, as well as providing commuter transit service for Teton County, Idaho. Ridership totals over 1,000,000 passengers per year.

Greater Yellowstone Trail Plan (GYT)
The Greater Yellowstone Trail Concept Plan was developed through a collaborative regional planning process that formalized a vision for a world-class regional trail system that would enhance quality of life, provide sustainable transportation options, connect to public land and recreational assets, and spur economic development opportunities along the unique and diverse 180-mile corridor.

Conceptual rendering of the Teton Pass Trail

Conceptual rendering of the Teton Pass Trail

Key Projects

1 Stilson Park Transit Center
Construction of transit center, access road, park ‘n ride, pedestrian and bicycle interconnections, covered bike parking and transit priority signal at WY-390.

3 START Commuter Buses
Purchase of four Commuter coaches, with bike racks, serving the Teton Valley route connecting Teton County, ID to Teton County, WY.

5 GYT: Wilson Active Transportation Improvements
Construction of continuous active transportation facilities along WY-22 through the community of Wilson linking regional pathways.

6 GYT: Wilson to Snake River Pathway
Construction of pathway and underpass below WY-22 linking Wilson to the planned Stilson Park Transit Center.

7 GYT: Teton Pass Trail
Construct next phase shared use pathway from Trail Creek Campground to Coal Creek.

8 Driggs Downtown Transit Center Park-and-ride
Serves START & Targhee Shuttle. Double capacity by adding 52 park & ride spaces and 2nd bathroom in passenger facility.

12 ID-33 Baseline Rd Intersection & Underpass
Construct turning lanes on SH33 Baseline Road Intersection, and replace pedestrian underpass to comply with ADA.

Although COVID-19 has extracted a heavy toll on the region’s economy, the project partners have assembled a local match of nearly 25% due to the critical importance of the TMIC.

Overall Project Cost
Wyoming Project Cost
Idaho Project Cost
Local Match Provided (24.76%)
BUILD Grant Request (75.24%)

The TMCI will provide comprehensive benefits to communities within Teton Valley, ID and Jackson Hole, WY. These benefits are important as the effects of COVID-19 are felt on local budgets throughout Idaho and Wyoming communities. Benefits from these projects will not only strengthen and hasten economic recovery as visitors return to the region to experience world-class resorts and National Parks, but also optimize and streamline operations for transit while making active transportation trips possible and convenient for local residents.

Overall Project Cost
Wyoming Project Cost
Idaho Project Cost
Local Match Provided (24.76%)
BUILD Grant Request (75.24%)

Teton County, WY
Teton County, ID
City of Driggs, ID
Town of Jackson, WY
Idaho Transportation Department
Southern Teton Area Rapid Transit
Jackson Hole Mountain Resort
Wyoming Department of Transportation
Grand Targhee Resort
Teton Village Association
Driggs Airport
Driggs Urban Renewal Agency
Wyoming Pathways
Teton Valley Trails and Pathways
Valley Advocates for Responsible Development

Check back regularly for project updates.


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