Went to Greenville over the weekend, and was puzzled the whole way by these things, which were spaced more or less 100 yards apart all along the median of I-26.
I have no idea what they are. They appear to be covered in some sort of synthetic fiber, but moving at 65-70 mph, it was hard to tell. (And no, I was not driving. It was hard enough capturing one of these in a frame on my iPhone as we whizzed by even as a passenger. It took a bunch of exposures to get one as clear as the one above. The blurry one below was second best.) I could not tell whether they were solid — made, say, of concrete — or mere covered frameworks. There may or may not have been gravel about the base.
They were four or five feet in diameter.
Drains of some sort? Shock-absorbing barriers for cars that wander into the median? UFOs? I don’t know. If they are drains, they seem … excessive. Like maybe DOT had some stimulus money it didn’t know what to do with.
Anyway, can anyone tell me the correct answer?