The following amendments are made to the Zoning Ordinance with regards to the Grissom Air Reserve Overlay District.
(A) Purpose. The purpose of this provision is to regulate the height of man-made structures and objects of natural growth; and otherwise regulate the land use and development of property around the Grissom Air Reserve Base by providing boundaries with standards within this overlay. In addition to these standards, all uses and structures shall comply with Federal Aviation Regulation (FAR), 14 C.F.R. part 77 and all other applicable state and federal regulations.
(B) Authority.
(1) Staff is given the authority to approve or deny improvement location permits based on items, such as height, density, dust, glare, bird hazards, or radio/electrometric interference that effect the operations of the Grissom Air Force Reserve.
(2) Staff will inform the Encroachment Committee of all developments or plantings that will be occurring within this overlay. The Committee will have two days to inform staff if there will be an effect on base operations, if there is they will have one week to provide those effects in writing. All Board of Zoning Appeals cases within this overlay will go through the same process.
(C) Definitions. For the purpose of this section, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ACUZ. The Air Installation Compatible Use Zone; assists local authorities in protecting public health, safety, and welfare by identifying types of development that would be compatible with the air installation as well as maintain the installation’s operational capability and mission through compatible land use planning. (See the 2014 Installation Compatible Use Zone Study for Grissom Air Reserve Base.)
APZ I. The Accident Potential Zone I; starts at the end of the Clear Zone and extends 5,000 feet beyond the clear zone and follows the same width as the Clear Zone. Approximately 8% of accidents occur within this area.
APZ II. The Accident Potential Zone II; starts at the end of APZ I and extends out 7,000 feet while continuing the width of APZ I. For the purpose of this overlay only, the area that runs from the eastern county line along 700S to 1000E to 800 S to 900E to 950S, then follows the most southwest end of APZI to 1000E to 1100S, then along the eastern county line; this doesn’t include any other the other districts.
CLEAR ZONE. Starts along the runway centerline within 3,000 feet of the end of the runway and 1500 feet from each side of the runway. This is where roughly 33% of accidents occur. For the purpose of this overlay only, the area 2500 feet on either side of the entire runway in the county will also be considered the CLEAR ZONE.
CONICAL SURFACE. A surface extending outward and upward from the periphery of the inner horizontal surface at a slope ratio of 20 to one (20H:1V) to a height of 500 feet above the established airport elevation.
DNL NOISE. Day to night average sound level is an energy-averaged sound level calculated over a 24-hour period with a ten-decibel penalty assigned to noise events occurring between 10:00 p.m. and 7:00 p.m.
ENCROACHMENT COMMITTEE. This committee will be created by the Grissom Air Force Reserve Base. This committee will provide information on how possible development and plantings may affect the Base. Members will include Grissom Air Force Reserve Base members with their consultants as well as regional officials and departments.
INNER CONICAL SURFACE. Provided for additional land use and height protection this district provides standards from the eastern county line along 500S to 950E to 600S to 900E to SR218 to 200E to 200S to 700E to 1225S to 1000E to 1250S, and back along the eastern county line; this does not include any of the other districts.
OUTER CONICAL SURFACE. Provided in this overlay for additional land use and height protections this district provides standards within the area that runs from inner conical surface at the intersection of 750E and 800S along 800S to 500E to 1400S along the eastern county line; this doesn’t include any of the other districts.
(D) Districts.
(1) Clear zone.
(a) Permitted uses: Cropland, not to include orchards.
(b) Height limitations (human-made and natural): No structures shall be constructed and no vegetation other than agricultural crops may be planted, unless they have been approved by the Board of Zoning Appeals as a special exception.
(2) APZI.
(a) Permitted uses: Cropland, not to include orchards; pasture and grazing livestock, not including confined feed; and agricultural buildings.
(b) Height limitations (human-made and natural): Structures shall not exceed 35 feet in height to the peak of the structure. Vegetation maybe planted if full growth will not exceed 50 feet in height.
(3) APZII.
(a) Permitted uses: Cropland and orchards; pasture and grazing livestock, not including confined feed; agricultural buildings; and all residential uses allowed within the Agricultural Zoning (AG) District.
(b) Height limitations (human-made and natural): Structures shall not exceed 50 feet in height. Vegetation may be planted if the growth will not exceed 100 feet in height.
(4) Inner conical surface.
(a) Permitted uses: All uses allowed in the Agricultural Zoning (AG) District are permitted. Any such use that would create dust, glare, bird hazards, or that would create radio or electrometric interference is prohibited within this district.
(b) Height limitations: Structures shall not exceed 150 feet in height.
(5) Outer conical surface.
(a) Permitted uses: All uses of the underlining zoning district are allowed. Any such uses that would create dust, glare, bird hazards, or that would create radio or electrometric interference are prohibited within this district.
(b) Height limitations: structures may not exceed 500 feet in height.
(Ord. 2016-03, passed 5-16-2016)