Know When it's Safe to be on the Ice
How thick does ice have to be to drive a truck on it? Skate on? Go ice fishing? Before you go out, check our ice thickness chart to determine if it’s safe!
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Use common sense on the ice. If you’re going skating or ice fishing with a group, stay off ice that’s less than four inches thick.Â
As a general rule, avoid ice that has cracks or ice near inlets or moving water. If you’re not familar with an area, be sure to talk to the locals because ice is rarely the same thickness all the way across a body of water and can change. If you’re going ice fishing, may also be a good idea to check with a local expert about ice safety. Bait shops or lakeside businesses may know about the ice conditions. Always be safe and don’t put yourself or others at risk.
Ice Thickness Chart
WARNING: Always be cautious. If you are unsure if the ice is safe, don’t take your chances!
Exercise extreme caution when using vehicles on ice and go with someone who’s familiar with the area. As the chart above shows, ice needs to be at least 8 inches thick to hold a small pickup ruck.
Also, don’t drive in a group. Park cars at least 50 feet apart or more and move every couple hours. Drive at a very slow speed with seatbelt off and door unlocked.Â
Always bring safety gear: A life jacket, ice pick, cell phone, length of rope, and ice auger.
Testing the Ice Thickness
How do you check the ice? Experts comparing it to checking the oil in your car. With a drill, make a hole. Hook the end of a tape measure on the edge and take the measurement. It’s worth bringing an ice auger to test the ice as you walk and move.
See our Windchill Chart for more important outdoor winter safety information!
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When I was a young kid, our family lived in Cincinnati, OH for a few years. Across the street and about 100 yards in, was a small lake. The people who owned the lake were generous and mindful. When the ice formed, they'd shoot a .22 into it and if the ice held to their satisfaction, we were allowed to ice-skate and sled across it. As long as we lived there, there was never an accident or incident. Spent many happy hours on the ice on that lake!
When I lived in Alton NH a member of the Alton Bay Flying Club and had my own Cessna 172, in February President's weekend we plowed a runway on the ice and had fly-ins. The only FAA sanctioned ice runway in the US at that time. Planes came from all over to experience it including twin engines and as far way as VA & MI.. The stores ran out of goodies. The gazebo in the middle of Alton Bay was the command center. I parked many airplanes. There were a couple of skidding accidents were the pilot met with a snow bank.
Taxiing around and parking the planes around the ice fishing shacks and staying between the snow banks was interesting.
If a Google search for the Alton Bay Winter fly-in was done, many pilots posted a video showing what it's like to land. This is unique in NE. OFA or Yankee Magazine should do a story about it.
As the snow was plowed off the ice, it exposed the ice to freezing temperatures making the ice thicker. The benefit of thick ice.
There is no ice thickness chart showing up on this website.
Thanks for letting us know—it should be visible now!
I realize that my fears are probably completely ridiculous, but I live right on the banks of a river and my city curates walking, skating, and cross-country ski trails on it. I assume that they're measuring, and I frequently see lightweight vehicles driving down the skating trail (which is in the center and almost certainly where the ice would be thinnest) to clear off the snow, so I know that the ice is thick enough to support the weight of that vehicle. Even so, sometimes when I'm walking or skating, the ice will make cracking sounds that I find extremely alarming. It's been VERY cold here lately (like, -30 Celsius and lower), so I also know intellectually that it's almost certainly too cold for the ice to be in any danger of melting, yet the cracking sounds scare me. Is there anything you could tell me to reassure me that this is normal or something? The river itself is shallow, especially in winter (maybe 20' at the deepest, more like 8' at the shallowest), and there are places where you can see that the ice is at least a foot thick. All the same, I nearly have a heart attack every time I walk over a spot and it starts making those cracking sounds. Reassure me??
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