July 21, 2025 CA · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator MACHINERY

Knifer River · Caught in, under or between running or meshing objects

MINER WAS SPOOLING IN A WINCH CABLE. EE WAS GUIDING THE CABLE WITH LEFT HAND AND CONTROLING THE FEED WITH THE CONTROLLER ON RIGHT HAND. AS THEY WERE ALMOST AT THE END, A U BOLT THAT WAS USED TO CREATE A LOOP AT THE END OF THE CABLE, CAUGHT THE CUFF OF THEIR GLOVE AND PULLED THEIR HAND INTO THE OPENING, THE U BOLT CAUGH THEIR MIDDLE FINGER AND LACERATED IT.

July 18, 2025 OR · Metal/Non-Metal plumber, pipefitter, millwright MACHINERY

Knife River Corporation-Northwest · Struck by flying object

Employee was blowing themselves off with air hose after end of shift. Leading to foreign material getting into their right eye.

September 18, 2023 OR · Metal/Non-Metal master mechanic, foreman, supervisor MACHINERY

Knife River Corporation-Northwest · Struck by... (Not Elsewhere Classified)

Individual sustained a 5cm laceration to left forearm while performing maintenance with a 4.5" grinder. Grinding wheel became bound in material while individual was cutting a weld, causing the grinder to accelerate forward into their arm.

September 18, 2023 OR · Metal/Non-Metal groundman, yardman MACHINERY

Knife River Corporation-Northwest · Caught in, under or between a moving and a stationary object

Miner entered HP400 cone crusher after performing lock out/tag out to clear a large rock stuck between cone and mantel. Miner failed to recognize the stored energy in the cone being suspended by the rock. When dislodging the rock, the weight of the cone came down trapping both feet between the cone and mantel.

September 1, 2023 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger MACHINERY

Knife River Construction · Caught in, under or between a moving and a stationary object

Replacing a coarse material washer (CMW) located inside a tub the employee was pinned between the CMW and a material chute above the tub. the employee was pinned for approximately 30 seconds, briefly lost consciousness and suffered bruising to the ribs and chest.

August 29, 2023 MN · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY

Knife River Corporation North Central · Rubbed or abraded

Removing a bolt with an impactor to replace the wear plate the carriage bolt moved up. Employee pushed down on the bolt and the sharp edge on the bolt caught their glove pulling a finger down on the rotating bolt cutting their finger.

July 14, 2023 SD · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY

Knife River - South Dakota · Struck by... (Not Elsewhere Classified)

EE was removing a worn cutting-edge bolt from the loader bucket. When EE went to remove the nut, the bolt dropped and continued to spin when EE attempted to secure it by grabbing it with EE's left hand, cutting EE's left index finger.

June 14, 2023 ND · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY

Knife River Corporation-North Central · Struck against a moving object

Employee was running a scraper and was being pushed by another scraper. EE alleges that the other scraper hit EE hard from behind and EE complained that EE's back was sore and ask to go home for the day. EE supposed to return to work the next day but asked for the day off. On 6/16/23 EE went to the Occ Health Clinic without notifying anyone.

June 6, 2023 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY

Northstar Materials Inc dba Knife River Materials · Struck by... (Not Elsewhere Classified)

Carrying tools and hand held grinder, hit start stop trigger on grinder, grinder cut arm

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