A Look at the Dump Truck vs. Bike Crash on Rangeline St. in Columbia, MO

Michael GrossmanOctober 21, 2025 2 minutes

Local authorities in Columbia, Missouri reported that a bicyclist was killed Monday afternoon after allegedly being struck by a dump truck at the intersection of Rangeline Street and Business Loop 70. According to officials, the crash was reported around 2:18 p.m. The bicyclist died from his injuries, while the dump truck driver was not hurt. The cause of the crash remains under investigation.

Collisions involving large commercial vehicles and cyclists often raise serious questions about driver awareness, operational safety, and whether all required precautions were followed in high-traffic areas. Because dump trucks make wide turns and have large blind zones, it will be important to look at the movement and position of the truck.

What Investigators Will Focus On

Investigators will begin by determining the exact movement of the dump truck and the bicyclist at the time of impact. They will review whether the truck was turning, slowing, or accelerating through the intersection and whether the driver maintained full awareness of the cyclist’s location. In incidents involving commercial vehicles and bicycles, authorities pay close attention to driver attentiveness, communication between operators and other road users, and compliance with right-of-way laws.

The dump truck driver’s work records and hours of service will also be reviewed to determine if fatigue or distraction may have been a factor. Investigators may examine cell phone data, dispatch logs, and statements from witnesses to establish the driver’s level of attention in the moments before the crash.

Evaluating Vehicle Safety and Maintenance

The dump truck’s mechanical condition and safety systems will undergo inspection to ensure proper function. Investigators will review maintenance records and inspection logs to verify that brakes, steering, and safety alarms were in good working order. Because dump trucks operate in environments where pedestrians and cyclists are common, backup alarms, side mirrors, and safety signage play a critical role in preventing accidents.

Authorities will also check whether the truck was equipped with side underride guards or other safety features that could reduce the risk of severe injury during collisions with vulnerable road users.

What Kinds of Evidence Should Be Collected?

The dump truck’s Engine Control Module (ECM) will provide essential data such as speed, braking activity, and throttle position before impact. Physical evidence like tire marks, vehicle resting position, and damage location will help reconstruct the point of contact and the truck’s movement during the crash. Investigators will also rely on surveillance footage or dash camera recordings from nearby vehicles or businesses to confirm how the incident unfolded.

Why a Detailed Investigation Is Necessary

When a commercial dump truck is involved in a fatal collision with a bicyclist, investigators must carefully examine every aspect of vehicle operation, driver conduct, and safety compliance. Establishing whether the truck was operated in accordance with all safety standards is essential for understanding what happened and why.