Permits are required for the installation of drive approaches, curb cuts, and culverts. Drive approach/curb cut permits can be obtained in the Building Inspection Department. Please contact the Engineering Department at 414-425-7510 for culvert installation information. Culvert orders are placed with the Engineering Department, processed and paid for in the Building Inspection Department, and installed by the Department of Public Works. Drive Approach/Curb Cut Permit Application Culvert Permit Application