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Littoral drift
Incoming afternoon tide, Grange
The 28 kilometres of sandy beaches along the metropolitan coast have been artificially maintained
since the early 1970s through a program of sand carting from areas of accumulation,
and dredging from off-shore sources. Without replenishment, beaches south of Glenelg
would by now have been lost and development subjected to damaging winter storms.
As littoral drift increases, accelerated by loss of protective seagrass beds off-shore,
beach nourishment will become increasingly expensive as suitable sand will have to be sourced
from more distant locations.
Sand carting at the West Beach Boat Harbour prior to its official opening, 25 February 1999.
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