Towers and antennas shall be designed to withstand sustained winds of at least eighty miles per hour with one-half inch of icing. An applicant shall further be required to construct or locate on a base the tower structure and the structure foundation, which base is designed to be buildable up to, but not including, the maximum permitted height for that structure. Such structure shall further be designed to have sufficient structural capacity to allow for at least three providers to be located on the structure when constructed to the maximum allowable height. The wireless communication facility shall also be designed to show that the applicant has enough space on its site for an equipment building large enough to accommodate at least three providers. If the equipment building is initially constructed to accommodate only one user, space shall be reserved on-site for equipment building expansion to accommodate up to at least two additional providers. The maximum size of above-ground equipment buildings is 300 square feet for one provider and in no circumstances more than 750 square feet total. (Ord. 2802. Passed 4-8-97.)