Knife River Corporation - South

An employee was cleaning the cylinder on a 55-gallon barrel pump. While he was cleaning built-up material from under the baseplate, the piston started moving and caught his thumb against the seat. Three-quarters of an inch of the thumb was degloved; he was hospitalized, requiring surgery.

An employee was loading a tanker truck with hot asphalt oil. The hose came loose and splashed the employee with hot asphalt oil causing third degree burns to the arms and legs. The employee was hospitalized.

An employee was tossing a damaged toilet into a compactor. The toilet bounced off the compactor and lacerated the employee's right wrist, cutting an artery and tendon.

An employee was operating a hydraulic jack to bend a frame when the jack came loose and struck the employee. They were hospitalized for a spleen injury.

A truck had been towed into the shop with a flat tire and a blown airbag. An employee checked the tire for damage and was airing the tire. The employee was installing the valve core when the bead slipped off the rim. Air escaped, and the aluminum wheel struck the employee's head and face. The employee became unresponsive and was bleeding.

On December 14, 2023, at 8:40 p.m., three employees were inspecting milling machines for startup. A few of the sleeves on the mill drum needed to be changed out. The injured employee was trying to input a sleeve on the mill drum using a hammer. The hammer hit the edge of the drum, which caused a metal piece to splinter off and strike the employee's cheek just below the left eye. The metal splinter embedded in the back of their eye socket, resulting in pain, swelling, and bleeding that required hospitalization.

An employee was pushing a line of carts into a vestibule when the door cable snapped and struck his right ankle. The employee suffered a fracture that required surgery and hospitalization.

An employee was operating a battery-powered broom to clean demolition debris off the top of the outermost bridge girder. The girder was approximately 11 feet above the demolition scaffold below. The employee fell approximately 8 feet to wind bracing below. The employee was hospitalized with a pelvis/tailbone fracture. Fall protection was in place at the time.

An employee was cleaning out an inlet pipe in a stormwater structure. The employee stepped back, fell into the pipe, and landed on concrete 13 feet below, at the bottom of the structure. He suffered a broken back.

A concrete batch plant operator was assisting with clearing spoil piles using a skid steer. The skid steer backed into a stationary screen plant. The employee's left little finger was crushed between the controls of the skid steer and the screen plant, resulting in a fracture and laceration. The employee's finger was surgically amputated.

An employee was operating a roller and paving a small pathway next to a pavilion. The ground was on a slight pitch, causing him to reach up toward the roll cage to stabilize himself. His right fifth finger was pinched between the roll cage and the rafter of the pavilion. The employee sustained a partial degloving injury with partial traumatic amputation.

An employee was working with paving equipment and heard a noise on the opposite side of the machine he was working on. When the machine stopped, the employee went to the opposite side and crouched down to investigate the noise. A mini track loader backed up and drove over the employee's leg. The employee sustained fractures to their lower leg, ankle, and foot.

After cutting a slab of beef short ribs, an employee turned to grab the pieces he had cut and his right hand contacted the saw blade. The employee sustained an amputation to his right index finger.

An employee was unloading a carpet pad from a truck when they fell from the truck dock to the concrete below, resulting in five fractured ribs and an injury to their left lung.

An employee was inspecting flares processes. The employee received burns to the front side of the body, face and arm from the flares.

An employee was removing plastic material from a production line when the machine cycled and amputated his left index, ring, and little fingers.

An employee was walking up a walkway to enter a building through the back entrance when she tripped over the lip of the cement ramp. The employee fell and sustained a fractured right hip.