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  2. Sandbag - Wikipedia

    en.wikipedia.org/wiki/Sandbag

    Sandbag structures do not prevent water seepage and therefore should be built with the central purpose of diverting flood water around or away from buildings. Properly filled sandbags for flood control are filled one-half to two-thirds full with clean washed sand.

  3. Miles-Phillips mechanism - Wikipedia

    en.wikipedia.org/wiki/Miles-Phillips_mechanism

    It was Harold Jeffreys [4] in 1925 who was the first to produce a plausible explanation for the phase shift between the water surface and the atmospheric pressure which can give rise to an energy flux between the air and the water. For the waves to grow, a higher pressure on the windward side of the wave, in comparison to the leeward side, is ...

  4. Tetrapod (structure) - Wikipedia

    en.wikipedia.org/wiki/Tetrapod_(structure)

    A tetrapod is a form of wave-dissipating concrete block used to prevent erosion caused by weather and longshore drift, primarily to enforce coastal structures such as seawalls and breakwaters. Tetrapods are made of concrete , and use a tetrahedral shape to dissipate the force of incoming waves by allowing water to flow around rather than ...

  5. Protect Your Home From Water Damage With These 5 Flood ... - AOL

    www.aol.com/lifestyle/protect-home-water-damage...

    Sandbags are designed to divert and halt water before it can reach a building. We only recommend using sandbags outside of buildings as they aren’t effective indoors—plus they slowly leak and ...

  6. Can you take sand from these SC beaches? Here’s what to know

    www.aol.com/sand-sc-beaches-know-130000974.html

    To keep the beaches wide for visitors and the dunes healthy, crews move sand from the ocean floor to the beach, a process called renourishment. $100 million in federal money have gone into ...

  7. Why do people use sandbags before a flood? - AOL

    www.aol.com/news/why-people-sandbags-flood...

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  8. Bulkhead (barrier) - Wikipedia

    en.wikipedia.org/wiki/Bulkhead_(barrier)

    The Cape Hatteras lighthouse stands behind a seawall of sandbags that temporarily stabilized the eroding shore; wave action destroyed the seawall soon after it was built. Studies over recent decades have resulted in public awareness as to potential negative effects that bulkheads may bring to beaches and the interconnected habitat areas of fish ...

  9. HydroSack - Wikipedia

    en.wikipedia.org/wiki/HydroSack

    A HydroSack or a HydroSnake is a brand name for a flood control sandbag alternative made by Gravitas International of Cheshire, North West England. [1] They are very lightweight and thin until they come into contact with water, then they begin to retain water until they have reached capacity. The devices then resist any further water excess.

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