Jackknife Accidents in South Dakota
Average Settlement: $500,000 – $1,800,000 | Statute of Limitations: 3 years from the date of the accident
Jackknife Accidents Overview
A jackknife accident occurs when a truck's trailer swings outward and forms a 90-degree angle with the cab, resembling a folding knife. These accidents are among the most dangerous truck collisions because the trailer can sweep across multiple lanes of traffic, striking other vehicles and creating chain-reaction crashes. Jackknife accidents are frequently caused by sudden braking, slippery road conditions, improper loading, or equipment failure. The driver may lose all control of the vehicle, and the massive trailer can block entire highways.
South Dakota Truck Accident Laws
Statute of Limitations
3 years from the date of the accident
Fault Rules
Modified comparative fault (slight/gross system) — uses a unique slight vs. gross negligence comparison
Average Attorney Fee
33-40% contingency
Average Settlement Range
$350,000 – $900,000
Common Injuries in Jackknife Accidents
- •Traumatic brain injuries
- •Spinal cord injuries and paralysis
- •Crushed or amputated limbs
- •Multiple bone fractures
- •Internal organ damage
- •Severe lacerations from debris
Key Facts About Jackknife Accidents in South Dakota
- ✓Jackknife accidents account for approximately 10% of all truck accident fatalities
- ✓Wet or icy roads dramatically increase jackknife risk
- ✓Improperly loaded trailers are a leading cause of jackknifing
- ✓Anti-lock braking systems (ABS) can help prevent jackknifing but are not foolproof
- ✓Multiple vehicles are often involved, creating complex multi-party claims
- ✓South Dakota uses a unique slight/gross negligence system for fault comparison
- ✓I-90 through South Dakota is a major east-west truck corridor
- ✓Harsh winter conditions contribute to dangerous driving conditions
Common Truck Accident Causes in South Dakota
- →I-90 corridor crashes
- →Agricultural truck collisions
- →Winter blizzard pileups
- →Tourist season traffic around Mount Rushmore
Injured in a Jackknife Accident in South Dakota?
Get a free case evaluation from a truck accident attorney experienced with South Dakota law. Most attorneys work on contingency — you pay nothing unless you win.
Calculate Your Settlement →Jackknife Accidents in Other States
Other Truck Accident Types in South Dakota
This information is for educational purposes only and is not legal advice. Consult a licensed personal injury attorney in South Dakota for advice about your specific situation.