The NYT seems to think we have.
Now much of that sand is gone. Though reports are still preliminary, coastal researchers say that when Hurricane Sandy came ashore, it washed enormous quantities of sand off beaches and into the streets — or even all the way across barrier islands into the bays behind them.
But even if there is money for that work, engineers must find the sand. Around the nation, that is getting more and more difficult. The problem is particularly acute in New Jersey.
“We know from geological surveys — and New Jersey is a prime example — that offshore sand, high-quality sand, is a highly finite resource,” said S. Jeffress Williams, a coastal scientist with the United States Geological Survey and the University of Hawaii.
Storms move sand around: they don’t destroy it.