Dumpsters in NYC and Bethesda, MD

Don't know if this is the right place for this kind of post (just joined) but there's a dumpster on the SW corner of 86th and West End in NYC (UWS) with some aluminum siding thingies on top (dumpster is full of other stuff and thingies have nails in them so be careful). Maybe only half a dozen so not worth travelling from out of the area but if you're nearby they're relatively easy to grab off the top for a tall guy.

Was also in Bethesda, MD last weekend, the restaurant next to Freddy's Lobster is being gutted and there was the fan assembly and some other heavy stuff in there.

Don't know who you ask for permission for either of these, but the one in NY was not covered (unlike most of them on the street).