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Snake River Bridge at WY 22 Project

About this project

The Wyoming Department of Transportation (WYDOT) is making improvements to Wyoming State Highway 22 (WY 22) between Jackson and Wilson in Teton County. The existing Snake River Bridge will be replaced with a four-lane bridge with a new pedestrian underpass west of the river. Because the WY 22/390 intersection is located very close to the bridge, it will be reconfigured to improve traffic flow. To improve safety, the project also includes installation of four wildlife crossings, as well as wildlife fencing, wildlife jump outs, and cattle guards.

Video update on the construction of the new 4-lane Snake River Bridge

Construction update information

The project will start with installation of a new pedestrian underpass and minor work on the Jackson Hole Community Pathway, followed by reconstruction of the bridge.

The informal parking area southwest of the bridge, which has been utilized as a parking area for those wishing to access the levy area, is closed. A new pedestrian access from the boat ramp and under the new bridge to the levy will be available upon work completion.

Scroll down for more details on the construction schedule.

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What drivers can expect during construction

WYDOT will replace the bridge and roadway approaches in phases so traffic can be maintained during construction. While the south half of the new bridge is under construction, traffic will be maintained on the existing bridge. When that first phase is complete, traffic will be moved to the two travel lanes on the south half of the new bridge. The old bridge will be removed to make room for the construction of the north half of the new bridge. When the north half is complete, all four lanes of traffic will be open. No detours are anticipated, and vehicular traffic will be maintained throughout construction.

What pathway users can expect during construction

WYDOT will strive to keep the pathway open during construction; however, short-term closures may be needed to maintain safety.

Project elements

Tentative construction schedule

2023

Spring

Gravel removal from the Snake River, embankment work, build and pave detour for Green Lane pedestrian underpass, construction of pedestrian underpass, minor pathway work

Summer

Before August 1st, construction of the Green Lane pedestrian underpass will be completed and construction of the Snake River bridge abutments for the first phase of the bridge (south half of the new bridge) will begin. After August 1st, work in the Snake River for bridge piers will begin. Construction of the wildlife bridge will be ongoing.

Fall

Build abutments for the first phase of the bridge, piers, roadway work to prepare for concrete paving

2024

Winter

Set bridge girders (south half of new structure)

Spring

Pour bridge deck and place concrete for south half of new structure and roadway approaches

Summer

Move traffic to newly constructed roadway and bridge; after Aug 1, remove old bridge, begin abutment and pier construction for north half of new structure and roadway approaches

Fall

Continue bridge work for north half of new structure

2025

Winter

Set bridge girders (north half of new structure)

Spring

Pour bridge deck and place concrete for north half of new structure and roadway approaches

Summer

Construction complete

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