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Worker injured at Mahnomen construction site

A Mahnomen County road construction worker was injured on site when he was trapped in a trench and a large ball of clay struck him, pinning him to the ground.

Timothy Henneman, 28, of Ashby, Minn. sustained serous injuries to his lower extremities, according to the Mahnomen County Sheriff's Office.

Deputies arrived at the scene around 2:18 p.m. Thursday after a caller reported a construction worker was trapped in a trench and workers on scene were attempting to free him.

When emergency personnel arrived, they found Henneman had been freed from the soil. Workers on scene reported that while Henneman was working in the trench, about 12 feet below road grade, a large ball of heavy clay had rolled back into the trench striking him and pinning him to the ground.

Henneman is an employee of Minnerath Construction Inc. of Cold Spring, Minn., who is conducting the road project for Mahnomen County.

After being stabilized at the scene by paramedics. Lifeflight airlifted Henneman to MertiCare in Fargo.

The White Earth Ambulance Service, Lengby Rescue, First Care Ambulance of Fosston and the White Earth Department of Natural Resources assisted at the scene.

Henneman's condition is unknown at this time but his injuries were believed to be non-life threatening, according to the Mahnomen County Sheriff's Office.