Bunk Silo Safety

Katelyn Miller, Field Crops and Forage Specialist
Southwest New York Dairy, Livestock and Field Crops Program

September 11, 2023
Bunk Silo Safety

BUNK SILO SAFETY: Tips To Stay Safe In Your Bunk Silo

Tractor and Truck Rollovers
  • ROPS (roll-over protective structures) should be installed on all tractors.
  • Never fill a bunk higher than the wall height.
  • Maintain a 1:3 slope on the sides and ends of a drive-over pile.
  • Back up steep slopes to prevent roll-backs.
  • Establish a driving procedure to prevent collisions when there is 1<pack tractor being used at one time.
  • Sight rails and lights can be installed on the walls to indicate the location of the wall to the tractor operator.
  • Only unload wagons or trucks when on a firm, flat surface.
  • A tire rut, low tires on a side, uneven loading, and wind gusts increase the risk of machinery tipping.

Avalanche Risk

  • Never stand near the feedout face.
  • Stand far away from the face. Take the height of the silage, multiple by 3, and remain that many feet from the face.
  • Piles should not be filled higher than the equipment can reach (most unloaders can reach 12-14 feet).
  • Don't pitch spoiled silage, this is a high fall and avalanche risk.
  • Use proper unloading techniques, shave silage down the face.
  • Never dig the bucket into the bottom of the silage.
  • Never park near the feedout face.
  • Wear a safety vest so you are visible in the bunk.

Entanglement/Run Over

  • Never repair machine while it is running.
  • Adjust rearview mirrors on all equipment.
  • Install backup alarms.
  • Never allow people in or near a bunk silo during filling.

Falling Risk

  • Install guard rails on walls.
  • Use caution when removing plastic, tires, tire sidewalls, gravel bags.
  • Use equipment operating at ground level to remove spoilage from the surface.
  • Never allow a person to ride in the bucket to take samples from a feedout face.

Follow the "buddy rule", you should never work alone in or near a bunker silo. 

Check out the Lallemand Silage Safety Handbook for more information!




Bunk Silo Safety Flyer (pdf; 2926KB)


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