St. Louis

Nighttime Route 159 Crash In Caseyville Kills Pedestrian, Injures Dog

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Published on March 09, 2026
Nighttime Route 159 Crash In Caseyville Kills Pedestrian, Injures DogSource: Google Street View

A late-Saturday incident along Illinois Route 159 in Caseyville turned deadly when a northbound vehicle struck a pedestrian and a dog, authorities said. The collision happened near Hollywood Heights Road, prompting state troopers to shut down the northbound lanes for several hours while they worked the scene.

What officials say

According to KMOV, Illinois State Police said the pedestrian and the dog were running east across Illinois Route 159 just before 9 p.m. when a northbound car hit them. The pedestrian was pronounced dead at the scene, and authorities have not released the person’s identity.

Injuries and traffic impact

The dog was rushed to an emergency veterinarian with injuries, and the driver of the vehicle was taken to a nearby hospital, KSDK reported. Northbound lanes of Illinois Route 159 were closed while investigators worked the crash scene and reopened at about 1 a.m. Sunday.

Investigation underway

Troopers from Illinois State Police Troop 8 responded and are leading the investigation into the collision, KSDK reported. Officials have not yet released more information about the circumstances that led up to the crash.

Broader safety context

Crashes involving people on foot remain a growing concern in Illinois and across the country, pushing transportation officials to focus more on safer crossings and speed management for vulnerable road users. According to the U.S. Department of Transportation, the Illinois Department of Transportation has pursued efforts such as a Zero Fatalities Task Force and a Vulnerable Road User Safety Assessment in response to rising pedestrian deaths.

What investigators say now

Troopers with ISP Troop 8 are continuing their investigation, and the pedestrian’s identity remains withheld, KMOV reported. Authorities said additional information will be released as it becomes available.