A Closer Look at the Semi Crash on CO-115 Near Rock Creek Park, CO

Michael GrossmanJune 10, 2025 2 minutes

A juvenile has died following a crash Monday afternoon on Colorado Highway 115 in El Paso County. According to Colorado State Patrol, the collision occurred near milepost 29 and involved a Hyundai Ioniq and a Mack semi-truck hauling a trailer. The driver of the Hyundai was taken to a nearby hospital by ambulance, while a minor passenger was flown to a hospital by helicopter and later died from their injuries. Authorities have not yet released further information on the driver's condition, and the investigation remains ongoing.

Crashes involving passenger vehicles and fully loaded semi-trucks often result in severe consequences due to the size and weight of the truck. That’s why it’s critical to examine how the crash occurred and what factors may have contributed, whether involving the truck’s operation or equipment.

What Could Have Contributed to the Collision?

At this stage, it's not clear which vehicle initiated the collision or what direction each was traveling. Investigators will need to determine whether either vehicle crossed the centerline, made an unsafe maneuver, or failed to yield. With a semi-truck involved, special attention should be paid to the truck’s speed, braking distance, and lane positioning at the time of impact.

Was the Semi Operating Safely for the Conditions?

One of the questions that investigators will likely address is whether the semi-truck was being operated in a manner appropriate for the roadway. CO-115 is a rural highway that can have varying curves, grades, and traffic patterns. If the truck driver failed to maintain proper control or couldn’t stop in time due to speed or load weight, that could be a contributing factor.

What Evidence Will Help Clarify the Cause of the Crash?

To determine how the crash unfolded, investigators will likely examine physical evidence from the scene such as skid marks, vehicle resting positions, and the pattern of damage to each vehicle. The truck’s Engine Control Module (ECM) can provide crucial data such as speed, braking, and throttle position leading up to the collision. Witness statements and any nearby surveillance or dash camera footage could also provide context about vehicle movements and driver behavior.

Why Every Detail Matters in Semi-Truck Collisions

When someone dies in a crash involving a commercial vehicle, the stakes are high and the questions are many. In my experience, the presence of a semi-truck at the center of a collision demands a close look at not just driver behavior, but also vehicle condition, maintenance history, and the trucking company’s safety practices. A complete investigation can help uncover exactly what happened and why.