Frozen Road Law Takes Effect News | December 21, 2022 | 0 | by Morgan McCarthy It’s another sign of the season. Wisconsin’s frozen road law takes effect for the northern half of the state. The frozen road law allows some trucks hauling heavy loads to carry even heavier loads. It helps with salt trucks, and it helps for trucks hauling trees out of the Northwoods. Wis-DOT says it will make the call about other areas of the state once the roads there freeze some more.