Which item is not a factor affecting ice strength?

• A. Thickness
• B. Currents
• C. Obstructions
• D. Candled

Answer: (D)

Ice strength depends on more than just how thick the ice is. The load that ice can safely support is influenced by how the water and environment interact with it. Currents under the ice can create flowing channels and melt, weakening the ice from below, especially where the current scours or concentrates flow. Obstructions beneath or within the ice, such as logs, rocks, or debris, disrupt uniform load distribution and create weak spots where cracks can start. Candled isn’t a recognized factor used to assess or influence ice strength; it’s not a standard consideration in determining how strong ice is. So thickness, currents, and obstructions are the factors that affect ice strength, while candled is not.