A Grading and Filling permit is required for the movement of more than ten (10) cubic yards of material on steep slopes or within shore or bluff impact zones, or more than fifty (50) yards outside of steep slopes, or shore or bluff impact zones. This includes rock used for riprap.
Grading and filling less than 50 yards outside of steep slopes, or shore or bluff impact zones does not require a permit, however you still need to contact the Planning and Zoning office to get a soil erosion control plan.
Riprap is allowed only where there is a demonstrated need to stop erosion. Riprap placement below the ordinary high water level is regulated by the DNR. Riprap above the ordinary high water level is regulated by Pine County when more than 10 yards of material is being used. If you are interested in putting in riprap it is important that you read the following DNR fact sheet to make sure you are project is compliant with state regulations.
Intensive vegetation clearing within the shore and bluff impact zones and on steep slopes is not allowed except for agricultural or forest management uses. In these areas, limited clearing of trees and shrubs is allowed to provide a view to the water from the principal dwelling site and to accommodate the placement of stairways, landings, etc provided that the screening of structures and vehicles from the water is not substantially reduced. Also, along rivers, existing shading of water surfaces must be preserved. These restrictions do not exist for trees that are dead, diseased, or safety hazards.