HOLDEN, Maine — A Bangor man was injured Thursday in a head-on collision on U.S. Route 1A that halted traffic during the busy evening commute.

Richard Burrell, 29, of Bangor was taken to Eastern Maine Medical Center in Bangor for treatment of injuries that were considered not life-threatening, Holden police Sgt. Eugene Fizell said Thursday night.

Fizell, who is investigating the crash, said the collision occurred about 4:40 p.m., when Burrill’s westbound 2003 GMC Envoy apparently darted across the centerline and into the path of a 2015 Toyota pickup truck driven by Tobin Peacock, 41, of Lamoine, who was traveling east toward Ellsworth.

“Through the scene investigation and talking with witnesses and the operators, it appears both vehicles were traveling the speed limit, 45 miles per hour,” Fizell said Thursday night in a news release. He said it was not yet clear why Burrell crossed the centerline.

Fizell said that passersby helped Burrill from his driver seat but that he was not able to stand and spent some time lying on his back on the frigid ground. The injured man, who was semiconscious, was assessed by Holden emergency medical personnel and then taken to EMMC by ambulance.

Alcohol does not appear to be a factor in the crash, Fizell said.

Fizell was assisted on scene by Penobscot County sheriff’s Deputy Jason Matheson and Holden fire and rescue personnel, who provided patient care and assisted with traffic control and other tasks.

Both lanes of travel on Route 1A, known locally as Main Road, where shut down for about an hour, Fizell said. Traffic alternated from lane to lane for about another half hour until the two wrecked vehicles were removed from the roadway.

Both of the vehicles involved in the crash were totaled.