Sec. 28-57
Dimensional standards
Servicing
- Geographic extent
- The mapped floodplainFloodplainLand expected to flood at a stated frequency, where building carries extra conditions. includes all of the above regions and also the regions designated as having a two-tenths (0.2) percent annual chance of flooding on a flood map or flood insurance study.
Uses
Extracted standards
16 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Other
- Breakaway wall design safe loading resistance10 psf
a breakaway wall shall have a design safe loading resistance of not less than ten (10) and no more than twenty (20) pounds per square foot.
- FillGrading (cut & fill)Reshaping land by removing earth (cut) or adding it (fill), often capped by volume. for structural support prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance.
The use of fill for structural support of buildings is prohibited.
- Floodway encroachment prohibition
No variance shall be granted for any proposed use, development, or activity within any floodway district that will cause any increase in the 100-year flood elevation.
Manufactured homes shall be anchored to prevent flotation, collapse or lateral movement.
- Maximum accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure floor area600 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 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 foot above the adjacent grade.
- Minimum flood opening area ratio1 sq in per sq ftsq 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 square inch for each square foot of enclosed area subject to flooding.
- Minimum number of flood openings2 count
Provide a minimum of two (2) openings on different sides of each enclosed area subject to flooding.
- Lowest floor elevation above base flood level3 ft
structures shall have the lowest floor, including basement, elevated to or above the base flood level plus three (3) feet.
- Utility equipment elevation above base flood level3 ft
Electrical systems, equipment and components; heating, ventilation, air conditioning; plumbing, appliances and plumbing fixtures; duct systems; and other service equipment shall be located at or above the base flood level plus three (3) feet.
- Maximum consecutive days for recreational vehicle180 days
Be on the site for fewer than one hundred eighty (180) consecutive days...
- Sand dune alteration prohibition
The manmade alteration of sand dunes, which would increase potential flood damage, is prohibited.
- Subdivision drainage requirement
All subdivision proposals shall have adequate drainage to reduce exposure to flood hazards.
- Subdivision public utilitiesPublic utilitiesInfrastructure serving the wider area — substations, pump stations, towers. requirement
All subdivision proposals shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize flood damage.
- Maximum lot size for varianceVariancePermission to depart from a specific dimensional rule, granted on a showing of hardship.0.5 acreacre43,560 square feet — about the size of an American football field without the end zones.
While the granting of variances generally is limited to a lot size less than one-half acre...
- Zoning permit required
All uses, activities and development occurring within any floodplain district, including placement of manufactured homes, shall be undertaken only upon the issuance of a zoning permit.
From the ordinance
The FH Overlay District shall be overlays to the existing underlying districts as shown on the county's zoning map.