Looks just like a survey marker, doesn’t it? It’s not. It’s related to surveying but it serves a very different role. Starting with the 1960 revision of the New York Zoning Resolution (the law that governs how big buildings can be in the city and puts limits on their shapes, as well as defining what …
I’m flummoxed. I’ve been trying for two months to figure out why the same agency would put a couple of markers less than three feet apart, and I’ve failed. They have different index numbers, so it’s not like the first was placed wrong and should have been removed when it was replaced by the other.
This is a much-abused survey marker. That gouge looks like someone dragged a crowbar across it. Not much text, but the critical thing is the number 174, which makes it findable in the database.
The MTA again. The word “baseline” got me wondering, and there’s a good chance that this marker is on the centerline of the IRT line as it heads southeast from the Bowling Green station to the Joralemon tunnel to Brooklyn.
We travel uptown and find a marker set in place for the MTA. Most likely, this is marking the edge or centerline of the subway below. Unlike a lot of the other markers, the head is flat, rather than a shallow dome. It’s also either very new or very resistant to wear.
