(A) Residential and B-1 District standards.
(1) Antennas located upon an existing tower or structure. Personal wireless service antennas as a permitted secondary use may be located upon existing towers or structures shall require the processing of an administrative permit and shall comply with the following standards.
(a) Transmitting, receiving and switching equipment shall be housed within an existing structure whenever possible. If a new equipment building or cabinet is necessary for transmitting, receiving and switching equipment, it shall be situated in the side or rear yard of the principal use, meet all applicable accessory building setback requirements and shall be screened from view by landscaping where appropriate.
(b) An administrative permit is issued by the city, subject to the following conditions:
1. Antennas mounted on buildings or structures shall not extend more than 15 feet above the structural height of the building or structure to which they are attached;
2. When antennas extend above the roof height of a building on which it is mounted, it shall be made to conceal the facility within or behind existing architectural features to limit its visibility from public places. Facilities mounted on a roof shall be stepped back from the front facade in order to limit their impact on the building's silhouette; and
3. Wall or facade mounted antennas may not extend more than five feet above the cornice line and shall be constructed of a material or color which matches the exterior of the building.
(c) In no case shall a personal wireless service antenna be located upon or affixed to a detached single-family residential dwelling.
(2) New towers. The erection of new personal wireless service antenna towers within residential and business zoning districts of the city is prohibited.
(B) Industrial District standards.
(1) Antennas located upon an existing structure or existing tower. Personal wireless service telephone antennas as a permitted secondary use may be located upon an existing structure or co-located on an existing tower shall require the processing of an administrative permit and shall comply with the following standards:
(a) An administrative permit is issued by the city;
(b) Antennas mounted on buildings or structures shall not extend more than 15 feet above the structural height of the building or structure to which they are attached;
(c) When antennas extend above the roof height of a building on which it is mounted, it shall be made to conceal the facility within or behind existing architectural features to limit its visibility from public places. Facilities mounted on a roof shall be stepped back from the front facade in order to limit their impact on the building's silhouette; and
(d) Wall or facade mounted antennas may not extend more than five feet above the cornice line and must be constructed of a material or color which matches the exterior of the building.
(a) The applicant shall demonstrate to the satisfaction of the city that location of the antennas as proposed is necessary to provide adequate portable personal wireless service telephone coverage and capacity to areas which cannot be adequately served by locating the antennas on an existing tower or support structure.
(b) If no existing structure which meets the height requirements for the antennas is available for mounting purposes, the antennas may be mounted on a monopole tower provided that:
1. Towers with a maximum capacity to support two antennas shall not exceed 140 feet in height. Towers with a minimum capacity to support three antennas shall not exceed 160 feet in height; and
2. The setback of the tower from the nearest property line is not less than the height of the antenna. Exceptions to the setback may be granted in those cases when a qualified structural engineer specifies in writing that any failure of the pole will occur within a lesser distance under all foreseeable circumstances. The setback shall not be reduced in cases where the subject site abuts a residential zoning district.
(c) Monopoles require a visual impact analysis which shall include computer generated visual simulations of the proposed monopole and where appropriate for proper analysis, a crane or balloon launching demonstrating the height of the monopole may be required.
(d) Transmitting, receiving and switching equipment shall be housed within an existing structure whenever possible. If a new equipment building or cabinet is necessary for transmitting, receiving and switching equipment, it shall be situated in the side or rear yard of the principal use, meet all applicable necessary building setback requirements, and shall be screened from view by landscaping where appropriate.
(e) At the discretion of the city, a security fence not greater than eight feet in height with a maximum opacity of 50% shall be provided around the support structure, as well as no climb security measures shall be provided on the tower or support structure.
(f) At the discretion of the city, landscaping may be required to adequately screen the base of the site from surrounding areas.
(Prior Code, § 11-23-7) (Ord. 258, passed 5-4-2006)