Wyoming Installed New Teton Pass Safety Signage
Drivers on Highway 22 face new signage and mandatory safety education for heavy vehicles.
Updated on Sept. 23, 2026 in Trucks
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The Wyoming Department of Transportation began installing updated warning signs on Highway 22 to improve road safety on Teton Pass. These measures follow a summer period marked by three deaths and multiple injuries on the mountain route.
Why it matters
High accident rates during the summer of 2026 prompted these infrastructure changes to better manage the risks of steep mountain terrain. The new safety protocols aim to ensure all drivers are adequately prepared for the demanding grade and curve requirements before they begin their ascent.
The new safety requirements mandate that drivers of vehicles over 10,000 pounds complete the Safe Pass education program. The signs installed address all motorists, with specific warnings regarding steep grades, sharp curves, and mandatory low gear use.
The players
Wyoming Department of Transportation
The state agency responsible for maintaining road infrastructure and enforcing transportation safety regulations.
The details
Crews installed updated Must Stop Brake Check and No Parking signs to alert motorists to mountain driving hazards. Beyond physical signage, the new Safe Pass education program requires heavy vehicle operators to review safety rules and self-certify their preparation for mountain driving. These steps address the mechanical and navigational challenges of the pass by standardizing driver behavior before arrival.
Timeline
Summer 2026: Three deaths and multiple injuries occurred on Teton Pass.
September 21, 2026: WYDOT crews began installing new safety signs.
October 1, 2026: Safe Pass program requirements take effect.
The Home Front
The installation of these signs follows a standard pattern of regional authorities updating infrastructure to address rising accident concerns in mountain corridors. This shift reflects a broader focus on aligning local transit safety regulations with established mountain driving safety protocols.
If you are planning to drive a heavy vehicle or a trailer through Teton Pass, prepare for the mandatory Safe Pass education requirements. You should also familiarize yourself with low gear requirements and brake check procedures to ensure vehicle readiness before entering steep terrain.
The takeaway
Proactive preparation for mountain driving is essential to navigate steep grades safely. Ensure all heavy vehicle drivers complete the Safe Pass education program by October 1, 2026, and always adhere to the posted brake check warnings while traveling through Teton Pass.
What happens next
Drivers of vehicles weighing over 10,000 pounds must complete the mandatory Safe Pass education program and self-certify their preparation before October 1, 2026.
Further reading
For more on managing vehicle safety on challenging terrain, read our Trucks guidance.
Source note: This article includes information reported by LocalNews8.
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