whats this?

i dont know if any of the 3 people who read this will be able to tell me the answer this question, but what the hell is this!? this thing, fenced off, with some sort of silos from the last century and a bunch of posts. somewhat maintained, somewhat decaying, crumbling. its between N. Capitol and First St NW and Michigan Ave and Channing St. in Washington DC, just around the corner from me. does it have something to do with the reservoir thats also fenced off? indian graveyard? UFO landing pad? city owned chicken farm thats fallen into ruin? cheese aging facility?