(A) Advantages of a property address numbering system. A street numbering system and corresponding property addresses provide individual structures with an exact geographic location in the county. City-type street/road addresses are necessary in order to provide a structure with a specific and more accurate identification for efficient mail delivery; to provide an easily identifiable geographic reference point for quick dispatch of police, fire and emergency rescue equipment; to provide utility companies with a permanent address record for billing and service calls tied to a specific structure; and to provide ease of location identification for friends, service vehicles or other individuals trying to locate a specific structure or a Boone County street or road. A numbering system should make it easy for anyone to find the location of a county road or residential property in a short period of time and it will allow for a systematic expansion of address numbers as community growth occurs.
(B) The grid coordinate system.
(1) Boone County has structured the naming of its road system and the issuance of property addresses based on the Lyman/Purdue Street Numbering System. The system is better known as the Grid Coordinate System. The system utilizes two base lines which run at approximate right angles to each other to divide the county into quadrants. Most of the county roads are numbered based on their distance from the north-south and east-west base lines. In Boone County the north-south base line consists of the Second Principal Meridian Line which runs directly through the courthouse building.
(2) The east-west baseline consists of East SR 32 in the eastern half of the county and Base Line Road in the western half of the county. Some streets/roads have only common names and all angular, jogging or diagonal streets/roads have been designated with common names. Examples: Pumpkinvine Road, Hunt Club Road, Grassy Road, Elizaville Road, Darlington Road.
(C) County road names and numbers. Existing posted county street/road numbers or names will be used to delineate an assumed distance in feet from a base line or each other (grid lines) even though a true measurement to the road is not exactly the distance stated on the road sign. EXAMPLE: County Road 500E may not be exactly five miles distant from the Second Principal Meridian but for purposes of street addressing the posted road sign will remain 500E and address numbers located east of the posted road will start with the number 5 and designate the East 5000 block of addresses. All address measurements will be taken from the middle of an intersection.
(D) Property numbering intervals. Street addresses are assigned in increasing order from each base and grid line. In Boone County, 1,000 potential property addresses exist for each 5,200 feet (one mile) of distance from the base lines. There are approximately 50 address numbers that will be available for each side of the street/road within each tenth of a mile. All of those available numbers will probably not be needed, depending on the density of development along a along the street/road. Therefore, addresses occur at each 12-foot interval and block numbers change every 528 linear feet along a street/road. A specific street/road address is determined by measuring the number of 12-foot intervals between the nearest grid line or county street/road signpost to the front entrance of a structure.
(Ord. 93-4, passed 5-10-1993)