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Planform Considerations for Barrier Island Beach Fill Storm Protection
Storm surges can be destructive to infrastructure (roads, buildings, utilities, etc.) on barrier islands and deadly to humans that make the mistake of attempting to ride out an extreme storm whose path approaches the island. One common approach for mitigating the potential catastrophic storm damage that might occur on a barrier island is through the use of soft structure protection (i.e. beach fill). Evidence of benefits accrued using beach fill for storm protection has been documented in a number of papers in the published literature (see for example, NAP (1995), Dean (2002)), but limited work exists to assess the level of protection afforded by beach fills occurring on barrier islands where adjacent inlets or passes have possible adverse effects on the performance of the fill. This paper is a preliminary investigation of varying planform responses of hypothetical beach fills on barrier islands. In the work presented, various barrier island boundary conditions are investigated with similar hypothesized project beach fills. The planform response of the fill to a given storm climatology is provided for comparison of level of protection offered. Performance results for a variety of similar fill placements when subject to a severe hypothetical storm are provided in figures, showing the importance of prior knowledge of barrier island boundary conditions when designing a beach fill for a given level of storm protection.
Planform Considerations for Barrier Island Beach Fill Storm Protection
Storm surges can be destructive to infrastructure (roads, buildings, utilities, etc.) on barrier islands and deadly to humans that make the mistake of attempting to ride out an extreme storm whose path approaches the island. One common approach for mitigating the potential catastrophic storm damage that might occur on a barrier island is through the use of soft structure protection (i.e. beach fill). Evidence of benefits accrued using beach fill for storm protection has been documented in a number of papers in the published literature (see for example, NAP (1995), Dean (2002)), but limited work exists to assess the level of protection afforded by beach fills occurring on barrier islands where adjacent inlets or passes have possible adverse effects on the performance of the fill. This paper is a preliminary investigation of varying planform responses of hypothetical beach fills on barrier islands. In the work presented, various barrier island boundary conditions are investigated with similar hypothesized project beach fills. The planform response of the fill to a given storm climatology is provided for comparison of level of protection offered. Performance results for a variety of similar fill placements when subject to a severe hypothetical storm are provided in figures, showing the importance of prior knowledge of barrier island boundary conditions when designing a beach fill for a given level of storm protection.
Planform Considerations for Barrier Island Beach Fill Storm Protection
Walton, Jr., Todd L. (author)
Solutions to Coastal Disasters Conference 2005 ; 2005 ; Charleston, South Carolina, United States
Solutions to Coastal Disasters 2005 ; 413-422
2005-05-02
Conference paper
Electronic Resource
English
Planform Considerations for Barrier Island Beach Fill Storm Protection
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