Sec. 31-416.2

Other

• Maximum base flood elevation rise (AE/AH zones)1 ft

  Until a regulatory floodway is designated, no new construction, substantial improvements, or other development (including fill) shall be permitted within the areas of special flood hazard, designated as Zones A1–30 and AE or AH on the FIRM, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot at any point within the City of Suffolk.

• 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 community during the occurrence of the base flood discharge.

• Maximum floodway water surface rise1 ft

  The Floodway District is in an AE Zone and is delineated, for purposes of this Section, using the criterion that certain areas within the floodplain must be capable of carrying the waters of the one percent annual chance flood without increasing the water surface elevation of that flood more than one (1) foot at any point.

• Lowest floor elevation requirement

  When such base flood elevation data is utilized, the lowest floor shall be elevated to or above the base flood level.

• Manufactured homeManufactured homeA dwelling built in a factory to a federal standard and transported to the site. prohibition

  The placement of manufactured homes (mobile homes) is prohibited, except in an existing manufactured home (mobile home) park or subdivision.

• Substantial damage threshold50 pct

  Substantial damage - For floodplain management purposes, damage of any origin sustained by a structure whereby the cost of restoring the structure to its before damaged condition would equal or exceed 50 percent of the market value of the structure before the damage occurred.

• Substantial improvement threshold50 pct

  Substantial improvement - For floodplain management purposes, any reconstruction, rehabilitation, addition, or other improvement of a structure, the cost of which equals or exceeds 50 percent of the market value of the structure before the start of construction of the improvement.