Dallin Mangelson killed in multi-vehicle crash on State Route 59

Chevy Avalanche crossed into eastbound lane after swerving to avoid passing car

May 01, 2026 | Washington, UT

Dallin Mangelson, 24, lost his life in a serious multi-vehicle incident in Washington County. 

The collision unfolded on State Route 59, highlighting the dangers of high-speed passing maneuvers on busy highways.

Dallin Mangelson, 24, died after a Chevy Avalanche crossed into the eastbound lane and struck Chevrolet Malibu on State Route 59 in Washington County.

What Happened in the Crash?

The Utah Highway Patrol reported that the accident took place around 9:39 a.m. An eastbound vehicle, moving at excessive speed, tried to overtake traffic. A westbound Chevy Avalanche pickup truck veered onto the right shoulder to evade it, but overcorrected, crossing into the eastbound lane.

• Date and Time: May 1, approximately 9:39 a.m.
• Location: State Route 59, Washington County, Utah
• Vehicles Involved: Chevrolet Malibu, driven by Mangelson, Chevy Avalanche pickup truck, another passenger vehicle, and a motorcycle
• Outcome for Mangelson: Airlifted to the hospital, and tragically passed away from injuries
• Other Injuries: Two individuals were hospitalized with non-life-threatening conditions

Mangelson's Chevrolet Malibu collided with the pickup truck, veering off the road and down an embankment. The scene also involved a separate passenger car and motorcycle, complicating the chain of the crash. Authorities continue to investigate the circumstances.

Why Do Passing-Related Accidents Occur?

Improper passing remains a leading cause of roadway collisions. According to the Federal Highway Administration, such maneuvers contribute to thousands of crashes annually, often due to insufficient visibility or speed misjudgments.

Data underscores the need for drivers to assess conditions before attempting to pass, ensuring ample space and clear sightlines.

Legal Insights

National legal analysts emphasize the value of thorough investigations in multi-vehicle crashes to uncover contributing factors.

"In cases such as this, gathering comprehensive evidence is crucial to demonstrate reckless behavior by involved parties," said Candice Bond, managing partner at Bond Legal and national analyst for Newsline. "Beyond police efforts, re-interviewing witnesses, reviewing surveillance footage, and securing communication records can build a strong case. This approach not only protects legal rights but also provides compassionate support during challenging periods."

• Independent investigations help preserve critical evidence that might otherwise be lost.
• Legal representation ensures families receive updates on investigations and pursue appropriate claims.
• Focus on broader road safety laws, like those prohibiting passes in hazardous zones, to prevent future tragedies.

"Families facing loss from catastrophic accidents deserve dedicated advocacy to claim damages for companionship, emotional distress, and suffering," noted Stefano Formica, of counsel with Bond Legal. "Staying engaged with official inquiries safeguards their interests and honors the victim's memory."

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