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~ 1 Area Attribute Codes (continued) MaJ or ~ 440 440 440 440 440 440 10/93 Minor Code 0157 0158 0160 0161 0162 0163 DescriDtor Zone A99 Zone.D Zone X (500-year) Zone X 1983 Undeveloped Coastal Barrier Area 1990 Undeveloped Coastal Barrier Area Comments This code identifies an area inundated by 100-year flooding, for which no BFEs have been determined. This is an area to be protected from the 100-year flood by a Federal flood protection system under construction. It is shown by FIS symbol Al04. This code identifies an area but possible flood hazards. FIS symbol AllO. of undetermined It is shown by This code i~9ntifies an area inundated by 500-year fl~oding; an area inundated by 100- year flooding with average depths of less than I foot or with drainage areas less than 1 square mile; or an area protected by levees fro," 100-year flooding. It is shown by FrS symbol Al08. This code identifies an area that is determined to be outside the 100- and 500- year floodplains. It is shown by FIS symbol Al09. This code identifies a designated 1983 Undeveloped Coastal Barrier Area in which flood insurance is unavailable for structures newly built or substantially improved on or after October 1, 1983. The landward boundaries of the area are coded with attribute code 440 0256. The seaward limits have no definite outline shown, therefore, the edge of the pattern is followed to delimit the area (attribute code 440 0204). It is shown by FIS symbol Al13. This code identifies a designated 1990 Undeveloped Coastal Barrier Area in which flood insurance is unavailable for structures newly built or substantially improved on or after November l6, 1990. The landward boundaries of the area are coded with attribute code 440 0257. The seaward limits have no definite outline shown, therefore, the edge of the pattern is followed to delimit the area (attribute code 440 0204). It is shown by FIS symbol Al14. 41