Fifteen seconds. The grain bin rules that keep you out of the news this harvest.

Flowing grain can bury a grown man in less than 15 or 20 seconds. That is the number Dr. Kevin Moore of Oklahoma State's Biosystems and Agricultural Engineering department leads with, and it is the reason the rest of the list exists.

Roughly half of grain bin entrapments are fatal. Fatal work injuries in farming, forestry, and fishing rose about 11 percent from 2022 to 2024. And the safety community's own estimate is that 95 percent of these incidents are preventable. The gap between those numbers is people going in when they did not have to.

The rules

1. Do not go in. Every other rule is what to do if you break this one. Most entries happen to break up crusted or bridged grain, and that job can be done from outside with a pole, a bin whip, or by running the aeration until it moves. Grain that is out of condition is the cause; entry is the symptom.

2. If you must go in, never alone. Someone stays outside, watching, with a phone, who knows how to shut things down and who is not going to jump in after you.

3. Lock out everything. Augers, sweeps, fans, the unload. De-energize and lock the disconnect, not just flip the switch. Most entrapments happen with the unload auger running, because the person outside "just wanted to get it moving."

4. Look before you climb. Is the grain bridged over a void? Is there a wall of grain stuck to the side that can avalanche? A crusted surface that looks solid is how people end up under it.

5. Harness and lifeline, tied off outside. Not perfect, but the difference between being pulled out and being dug out.

6. If someone goes under, call 911 first. Do not go in after them. The second person in is the second fatality in a large share of double-death incidents. Shut off the equipment, call, and keep talking to them. Rescue teams with grain tubes and training exist across most of the Corn Belt and Plains now; your fire department may have been trained by the same people who trained the Nebraska and Illinois crews.

7. Protect the airway. If someone is partially buried and conscious, the immediate danger after the grain stops moving is aspirating dust and fines. Get something over their nose and mouth.

The prevention nobody talks about

Moore's point that gets the least attention: "If you maintain the quality of your stored grain, you're much less likely to have problems." Grain that goes in at the right moisture, gets cooled down, and gets checked weekly does not crust, does not bridge, and does not need someone inside it with a shovel in February. The entrapment risk is decided in October when the bin is filled, not in the moment somebody climbs the ladder.

Safety Week

National Farm Safety and Health Week is September 21 to 25. AgriSafe is running eleven free webinars that week on equipment, roadway safety, confined spaces, and health. If you employ anyone on the farm, one of them is worth the hour.