Dimensional standards
Servicing
- Geographic extent
- All floodplainFloodplainLand expected to flood at a stated frequency, where building carries extra conditions. districts, including AE, AH, A zones, and mapped floodplainFloodplainLand expected to flood at a stated frequency, where building carries extra conditions. with 0.2% annual chance of flooding
Uses
Prohibited1
Extracted standards
11 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Floodplain
- Floodproofing elevation above BFE2 ft
Nonresidential buildings located in all A1-30, and AE zones may be floodproofed in lieu of being elevated provided that all areas of the building components below the elevation corresponding to the BFE plus two (2) feet are water tight
- Maximum accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure size 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 six hundred (600) square feet in total floor area
- Maximum increase in base flood water surface elevation1 ft
no new construction, substantial improvements, or other development (including fill) shall be permitted within the areas of special flood hazard... unless it is demonstrated that the cumulative effect... will not increase the water surface elevation of the base flood more than one (1) foot
- Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. of flood opening bottom above grade1 ft
The bottom of all required openings shall be no higher than one (1) foot above the adjacent grade.
- Maximum consecutive days for recreational vehicle180 days
Be on the site for fewer than one hundred eighty (180) consecutive days, be fully licensed and ready for highway use
- Minimum total net area of flood openings1 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 openings must be at least one (1) square inch for each square foot of enclosed area subject to flooding.
- Minimum number of flood openings per enclosed area2 count
Provide a minimum of two (2) openings on different sides of each enclosed area subject to flooding.
- Minimum freeboard above base flood elevation1.5 ft
lowest floor, including basement, elevated to or above the base flood level plus eighteen (18) inches
- Minimum freeboard above base flood elevation for nonresidential1.5 ft
lowest floor, including basement, elevated to or above the base flood level plus eighteen (18) inches
- Subdivision area requiring BFE data5 acresacre43,560 square feet — about the size of an American football field without the end zones.
subdivision proposals and other proposed development proposals (including manufactured home parks and subdivisions) that exceed fifty (50) lots or five (5) acres, whichever is the lesser
- Subdivision size requiring BFE data50 lots
subdivision proposals and other proposed development proposals (including manufactured home parks and subdivisions) that exceed fifty (50) lots or five (5) acres, whichever is the lesser
From the ordinance
The placement of manufactured homes (mobile homes) is prohibited, except in an existing manufactured home (mobile home) park or subdivision.