[Code of Federal Regulations]
[Title 44, Volume 1]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 44CFR65.11]

[Page 335]
 
              TITLE 44--EMERGENCY MANAGEMENT AND ASSISTANCE
 
 CHAPTER I--FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF HOMELAND 
                                SECURITY
 
PART 65_IDENTIFICATION AND MAPPING OF SPECIAL HAZARD AREAS--Table of Contents
 
Sec.  65.11  Evaluation of sand dunes in mapping coastal flood hazard areas.

    (a) General conditions. For purposes of the NFIP, FEMA will consider 
storm-induced dune erosion potential in its determination of coastal 
flood hazards and risk mapping efforts. The criterion to be used in the 
evaluation of dune erosion will apply to primary frontal dunes as 
defined in Sec.  59.1, but does not apply to artificially designed and 
constructed dunes that are not well-established with long-standing 
vegetative cover, such as the placement of sand materials in a dune-like 
formation.
    (b) Evaluation criterion. Primary frontal dunes will not be 
considered as effective barriers to base flood storm surges and 
associated wave action where the cross-sectional area of the primary 
frontal dune, as measured perpendicular to the shoreline and above the 
100-year stillwater flood elevation and seaward of the dune crest, is 
equal to, or less than, 540 square feet.
    (c) Exceptions. Exceptions to the evaluation criterion may be 
granted where it can be demonstrated through authoritative historical 
documentation that the primary frontal dunes at a specific site 
withstood previous base flood storm surges and associated wave action.

[53 FR 16279, May 6, 1988]