Wyoming's I-80 is one of the most weather-exposed freight routes in America. Wind closures, blow-overs and ground blizzards shut it down for days at a time, and the stretch between Laramie and Rawlins has earned its reputation with truckers.
The truck accident statute of limitations in Wyoming appears to be 4 years from the date of the crash (Wyo. Stat. § 1-3-105(a)(iv)(C)). Wrongful death generally runs 2 years from the date of death. If a government vehicle or entity was involved, formal written notice is generally required first, on its own clock: 2 years. The evidence clock is shorter than all of them.
How current these numbers are
A licensed attorney checked these Wyoming figures against the cited statutes on 2026-09-20. Statutes still change (Florida cut its injury period in half in 2023; Louisiana doubled its own in 2024), so confirm with a Wyoming lawyer before you rely on them.
Life next to big rigs on I-80
I-80 across southern Wyoming runs high and exposed, and winds regularly top the level where light or empty trailers get blown over. WYDOT closes the road to light, high-profile vehicles often, and full closures happen in blizzards. I-25 from Cheyenne to Casper and Sheridan carries north-south freight through similar weather. In the northeast, the Powder River Basin's coal and energy traffic adds heavy trucks to roads like WY-59. Wildlife, especially deer and antelope, cross the roads at dusk. Winter lasts a long time, and black ice can show up any month but summer.
I-80 across southern Wyoming is one of the highest-elevation and most weather-exposed freight corridors in the country, with regular closures for wind and blow-over risk. The Powder River Basin's coal and energy traffic adds heavy haulage on state routes. Crashes pile up on I-80 (Cheyenne–Laramie–Rock Springs–Evanston), I-25 (Cheyenne–Casper–Sheridan), I-90 through the northeast, US-287 and US-26 and WY-59 through the Powder River Basin.
How the clock plays out: a crash on I-80
Say you're driving an empty trailer west on I-80 near Elk Mountain when a gust tips you over. Or say you're a family in a minivan and a rig blows over into your lane. Either way, the questions are the same: Was the road under a wind advisory? Was that truck supposed to be there? WYDOT closure records, weather data and the truck's ELD tell that story. That record gets harder to pull together the longer you wait.
What makes Wyoming different
Wyoming's four-year personal injury deadline halves to two for wrongful death. Its Governmental Claims Act is also unusual in having a constitutional dimension: Wyoming courts require an itemised, signed claim and enforce that requirement strictly, and suit must then be filed within one year of presenting the claim. Wind-related blow-over crashes on I-80 frequently turn on ECM and weather data that disappear within weeks.
Every Wyoming clock in one table
| Deadline | Period | Runs from | Citation |
|---|---|---|---|
| Personal injury lawsuit | 4 years | the date of the crash | Wyo. Stat. § 1-3-105(a)(iv)(C) |
| Wrongful death claim | 2 years | the date of death | Wyo. Stat. § 1-38-102(d) |
| Notice — state entity | 2 years | the date of the crash | Wyo. Stat. § 1-39-113 |
| Notice — city, county or district | 2 years | the date of the crash | Wyo. Stat. § 1-39-113 |
On the wrongful death period: Half the personal injury period.
If a government vehicle was involved in Wyoming
Shortest government notice window found for Wyoming: 2 years (Wyo. Stat. § 1-39-113). It comes due long before the ordinary deadline, it's a precondition to suing, and missing it usually bars the claim entirely. Governmental Claims Act notice within two years, plus a constitutional itemised-claim requirement that Wyoming courts enforce strictly. Same for counties, cities and school districts. Suit must then be filed within one year of filing the claim.
Public fleets you could realistically be hit by here: WYDOT plow and maintenance trucks, county road and bridge equipment, municipal fleets in Cheyenne and Casper, and school district buses. Not sure the vehicle was one of these? Work to the shorter deadline until someone confirms otherwise.
If the injured person was a minor
Tolled to age 18 in Wyoming under Wyo. Stat. § 1-3-114. The clock generally doesn't start until the injured person turns 18. That pause covers the court deadline, not the evidence: a carrier may destroy a driver's logs six months after the crash no matter the injured person's age, and in many states a government notice deadline isn't tolled for a child either.
When the Wyoming clock starts
Applies. Wyoming runs the clock from when the claimant knew or should have known of the alleged malpractice or injury.
Your Wyoming dates, calculated
Enter your crash date. Wyoming is preselected, and nothing you type is sent anywhere.
The evidence clock runs faster than 4 years
- Dashcam and telematics video: often 30 days or less (No federal retention requirement — vendor and carrier policy only).
- ECM / black box data: overwritten as the tractor runs; often lost on repair or resale.
- Driver logs: six months (49 CFR § 395.8(k)(1)).
- Maintenance records: one year while the vehicle is in the carrier's control (49 CFR § 396.3(c)).
- Annual inspection report: 14 months (49 CFR § 396.21(b)(1)).
Until a written preservation letter reaches the carrier, destroying records at the end of a retention period is routine and lawful. The FMCSA regulations and evidence guide explains each record.
Local moves that protect a Wyoming claim
- The Wyoming Highway Patrol handles most interstate and highway crashes. Ask for the report number and trooper's name.
- WYDOT posts wind advisories and closures for I-80 and I-25. Save screenshots or notices from the day of the crash.
- If a truck blew over, note whether it was loaded or empty. That detail can change the whole picture.
Crashed near the Wyoming line?
A crash a few miles over a border can fall under a different deadline. If you're not sure which state you were in, check both.
| State | Injury deadline | Wrongful death |
|---|---|---|
| Montana | 3 years | 3 years |
| South Dakota | 3 years | 3 years |
| Nebraska | 4 years | 2 years |
| Colorado | 3 years (motor vehicle) | 2 years |
| Utah | 4 years | 2 years |
| Idaho | 2 years | 2 years |
Compare any state with the filing deadline calculator, or see the full state index.
Next steps
- Get a preservation letter to the carrier. It's the most time-critical step.
- Confirm whether a government entity was involved. If so, your 4 years deadline may give way to 2 years.
- Don't give a recorded statement to the trucking company's insurer.
- Get the Wyoming crash report; it names the carrier, DOT number and insurer.
- Have a lawyer licensed in Wyoming confirm these dates against the current statute.
Sources
- Hours of Service — records of duty status retention — 49 CFR § 395.8 (Federal Motor Carrier Safety Administration)
- Inspection, Repair, and Maintenance — record retention — 49 CFR Part 396 (Federal Motor Carrier Safety Administration)
- Accident register requirements — 49 CFR § 390.15 (Federal Motor Carrier Safety Administration)
- Large Truck and Bus Crash Facts — Federal Motor Carrier Safety Administration
Federal regulations and crash statistics are updated periodically. Figures cited on this page reflect the referenced publications at the time of writing; check the source for the current edition.