Ice Safety Guide Ice is never 100% safe. Minimum ice thickness guidelines for new, clear ice. STAY OFF ice LIGHT TRUCK SEVERAL SNOWMOBILES ONE CAR GROUP ACTIVITIES ICE BOATING ONE SNOWMOBILE ONE ANGLER less than 4 inches 1 2 3 4 5 6 7 8 9 10 11 12 11 inches 12 inches There are many factors that influence ice strength including water chemistry, wind, and sunlight. Please note: these are general ice thickness guidelines. Carefully check ice conditions before venturing onto the ice. 10 Pennsylvania Angler & Boater fishandboat.com 4 inches 5 inches 6 inches 7 inches 8 inches 9 inches 10 inches THICKNESS OF ICEhttp://www.fishandboat.com