To shore up beaches, just add sand?

[Still Waters]

New research is shedding light on how mechanically placed sand on San Diego County beaches moves and its potential impacts. The study, published in the journal Coastal Engineering, could help planners develop beach nourishment projects that will reach their intended goals without causing unintended problems. North San Diego County for instance is planning a 50-year, $160 million series of beach nourishments intended to combat flooding and erosion, and provide recreational space for tourists.

"There's a lot that is not known about how sand moves," says Scripps postdoc Bonnie Ludka, who led the study. "If you put sand on a beach, it won't just stay in one place. The question is, how long does it stay where you want it? And as it moves, where does it go?"

https://phys.org/news/2018-04-shore-beaches-sand.html?

[Piney]

The beach replenishment here in New Jersey destroys fish habitats and they are trying to get barrier islands to stay in one place, which isn't too smart...

[Oniomancer]

Be nice if they do this instead of dragging in gravel and riprap from non-local sources that don't match the geology.

[Doc Socks Junior]

Quote

Be nice if they do this instead of dragging in gravel and riprap from non-local sources that don't match the geology.

Anthropocene erratics!

Edited April 9, 2018 by Socks Junior