DHS Border Fence Design Criteria
However, design criteria require that, at a minimum, the fence must be 16 feet high and 3 to 6 feet below ground, capable of withstanding a crash of a 10,000-pound (gross weight) vehicle traveling at 40 miles per hour, capable of withstanding vandalism, cutting or penetrating; semi-transparent, as dictated by operational need, designed to survive extreme climate changes, able to reduce any minimal impacts on small animal movement, not impede the natural flow of water; and be aesthetically pleasing.