According to MUTCD, Sign posts, foundations, and mountings shall be constructed to hold signs in a proper and permanent position, and to resist swaying in the wind or displacement by vandalism. Ground-mounted sign posts shall be breakaway, yielding, or shielded with a longitudinal barrier or crash cushion if within the clear zone. MUTCD states that “where large signs having an area exceeding 50 square feet are installed on multiple breakaway posts, the clearance from the ground to the bottom of the sign shall be at least 7 feet.