No, I don't actually think I have. I'm from Boston so I'm much more familiar with our islands
Before the snow hit us I went over to Ft. Greble so I've got Hope confused with Dutch!
I'd imagine a couple must be open unless they keep a very close eye on things. We have one 16" battery up here in NH they welded the gate shut to, until someone cut through the bars. So, they welded a 1/2" steel plate over the whole doorway. That worked, until someone got a torch up there and cut a hole in that too!
Most of the time when a place has all those ammo bunkers when you've seen one you've seen 'em all, but every now and then you can find one with something leftover inside. We have another ammo depot around here they flooded for a reservoir, a few bunkers are now a few feet from the shoreline unless it's been very dry, makes things a little more interesting
I do plan to visit Hope this spring if winter ever ends . . .