I guess it depends on where it's from. A few years ago they dredged our inlet to the bay and it was full of iron and poptops it was like sanding in the dry as they covered up all the recent drops.
There is a barge that frequently dredges sand from the inlet and then dumps it just offshore along the beach. At times we would find old coins, jewelry, and other items in this dumped sand, but not always. It largely depended on where, exactly, the dredged sand came from?
The sand appears to be coming from a nearby inlet that is lined by very expensive houses, most with boat docks. Guess It makes sense to give it a try. It is hard to pass up. Maybe I'll get lucky.