Sec 70-570 through 70-590
Dimensional standards
Servicing
- Applies near
- Flood Insurance Rate Map (FIRM)
- Geographic extent
- Areas of special flood hazard as shown on the Flood Insurance Rate Map (FIRM) and Flood Insurance Study (FIS) for Orange County, dated May 17, 2022, and any subsequent revisions.
Uses
Prohibited1
- Manufactured homes (mobile homes) except in existing manufactured home parks or subdivisions
Extracted standards
5 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Floodplain
- 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;
- Floodway encroachment restriction
Within any floodway area, no encroachments, including fill, new construction, substantial improvements, or other development shall be permitted unless it has been demonstrated through hydrologic and hydraulic analysis performed in accordance with standard engineering practice that the proposed encroachment will not result in any increase in flood levels within the County during the occurrence of the base flood discharge.
- Lowest floor elevation above base flood elevation1.5 ft
New construction or substantial improvement of any residential structure (including manufactured homes) in Zones AE and A with detailed base flood elevations shall have the lowest floor, including basement, elevated to or above the base flood level plus eighteen (18) inches.
The placement of manufactured homes (mobile homes) is prohibited, except in an existing manufactured home (mobile home) park or subdivision.
- Non-residential floodproofing elevation above base flood elevation2 ft
Non-residential buildings located in all 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 feet are water tight
From the ordinance
The various special flood hazard districts shall include the SFHAs. The basis for the delineation of these districts shall be the FIS and the FIRM for Orange County prepared by the Federal Emergency Management Agency, Federal Insurance Administration, dated May 17, 2022.