Upper Bern Township, PA (May 12, 2026) – An injury crash was reported Sunday on Interstate 78 westbound near mile marker 24.0 in Upper Bern Township.
Emergency units were dispatched to the area following reports of a motor vehicle accident involving injuries along the westbound side of the highway. Limited details have been released regarding the number of vehicles involved or the severity of the injuries sustained.
Responders worked at the scene to assist those involved and manage traffic in the area. The crash caused activity along the westbound lanes as emergency crews assessed the situation.
No additional information regarding the people involved or the circumstances leading up to the collision has been made public.
The incident remains under review by authorities. We are thinking of those injured as they receive medical care.
Why Highway Injury Crashes Cause Traffic Delays
Crashes on interstate highways can quickly lead to traffic slowdowns due to lane restrictions and emergency response activity. Even when only one lane is affected, congestion may build as drivers reduce speed near the scene, creating a ripple effect that extends miles beyond the crash site. Sudden braking and merging can also increase the risk of secondary collisions in heavy traffic.
Highway accidents involving injuries require responders to assess victims inside or near the vehicles before traffic can safely resume. In some cases, crews may need to stabilize the damaged vehicles, provide on-site medical care, or coordinate transport to nearby hospitals. Debris scattered across lanes, disabled vehicles, and the presence of fire, police, and medical units can significantly limit available travel space and delay reopening efforts.
After the scene is stabilized, investigators may review skid marks, vehicle damage, and traffic conditions to determine how the crash occurred. They may also consider factors such as speed, weather, visibility, and driver behavior. Information gathered from the roadway, along with witness statements and possible camera footage, can help explain vehicle movement and the sequence of events leading up to the collision.
