Dimensional standards
Servicing
- Geographic extent
- Special Flood Hazard Area (SFHA)
Extracted standards
8 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Floodplain
- AccessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure anchoring required in SFHA
Be anchored to prevent flotation
- AccessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure electrical elevation required in SFHA
Have electrical service and mechanical equipment elevated to or above the base flood elevation
- AccessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure use restriction in SFHA
Not be used for human habitation; Be usable only for parking of vehicles or limited storage
- Maximum accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure floor area in SFHA600 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Be limited to no more than 600 square feet in total floor area
- Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. of flood opening bottom above grade for accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structures1 ft
The bottom of each flood opening shall be 1 foot or less above the higher of the interior floor or grade, or the exterior grade, immediately below the opening.
- Minimum flood opening net area ratio for accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structures1 sqin/sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
The total net area of all flood openings shall be at least one square-inch for each square foot of enclosed area
- Minimum number of flood openings for accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structures2 count
There shall be a minimum of two flood openings on different sides of each enclosed area
- Non-conversion agreement required for accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structures in SFHA
A signed declaration of land restriction (non-conversion agreement) shall be recorded on the property deed.
From the ordinance
Accessory structures in the SFHA shall comply with the elevation requirements and other requirements of 3-1520(B), or if not elevated or dryproofed shall: a. Not be used for human habitation; b. Be limited to no more than 600 square feet in total floor area; c. Be usable only for parking of vehicles or limited storage; d. Be constructed with flood damage-resistant materials below the base flood elevation; e. Be constructed and placed to offer the minimum resistance to the flow of floodwaters; f. Be anchored to prevent flotation; g. Have electrical service and mechanical equipment elevated to or above the base flood elevation; h. Shall be provided with flood openings which shall meet the following criteria: 1. There shall be a minimum of two flood openings on different sides of each enclosed area; if a building has more than one enclosure below the lowest floor, each such enclosure shall have flood openings on exterior walls. 2. The total net area of all flood openings shall be at least one square-inch for each square foot of enclosed area (non-engineered flood openings), or the flood openings shall be engineered flood openings that are designed and certified by a licensed professional engineer to automatically allow entry and exit of floodwaters; the certification requirement may be satisfied by an individual certification or an Evaluation Report issued by the ICC Evaluation Service Inc. 3. The bottom of each flood opening shall be 1 foot or less above the higher of the interior floor or grade, or the exterior grade, immediately below the opening. 4. Any louvers, screens or other covers for the flood openings shall allow the automatic flow of floodwaters into and out of the enclosed area. i. A signed declaration of land restriction (non-conversion agreement) shall be recorded on the property deed.