• Beach drainage is when a drain is installed under a beach. it takes all the water from under the sand and either pumps it to a pump station, which takes the water back to the sea, or just pumps it straight back to the sea.
• By draining the beach, the sand is able to dry and the sea wind is able to re-create a dry beach.

LIMITATIONS:

- cheap and effective way for beaches whose sand cannot dry easily
- however, it requires high maintenance
- the system could be damaged by storm erosion of beach





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