Lifes a Beach Geological Processes Living wih_Trembanis_Date_042710_72

Lifes a Beach Geological Processes Living wih_Trembanis_Date_042710_72

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Hard stabilization: structures built to decrease coastal erosion interfere with sand movement often results in unwanted outcomes o some structures may increase wave erosion groins and groin fields jetties breakwaters seawalls Alternatives to hard stabilization: construction restrictions o limit building near shorelines o National Flood Insurance Program encourage prudent construction beach replenishment o sand added to beach/long shore current Stabilization Measures- 2 types: devices placed in the water o breakwaters o artificial seaweed devices placed on the beach o groins and jetties o seawalls o dewatering o dune stabilization Stabilization Measures – in H 2 0: devices placed in the water o breakwaters function shore parallel placed offshore, either submerged or floating dissipates wave energy by forcing waves to break. this creates a “wave shadow” causing sand deposition o associated problems wave action may cause scour in the vicinity of the device
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Lifes a Beach Geological Processes Living wih_Trembanis_Date_042710_72

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