Looking at the linked pic, it looks like the new dune line needs to be back several hundred yards behind the house sitting on the water.
And, either pay for it out of the local’s pockets and charge the fees, or take state and fed money and provide free access to the beach.
Here in Upstate NY....we dredge it out in the Lake Ontario/Genesee River channel.
(1) Dune maintenance
(3) Keeping the riff-raff out
I'm happy to pay the fees.
The argument about "subsidizing rich people's homes" is silly.
Personally, I’d like to see all the home sites that were destroyed by Sandy seized under imminent domain and return to open space so that all the rest of us don’t have to keep paying for rich a-holes to rebuild homes that never should have been allowed to be built that close to the water in the first place.