Here, the highway lighting started moving to the LED fixtures last year I think. I don't think the fixtures they used look all that bad, of course I still liked the HPS cobras better. Surprisingly just one section was replaced, the north and south sections are still HPS, as are the ones on the secondary roads, like near my house.

I don't like the LED yard lights the POCO started using, the color is putrid! Got three on my street, one HPS left. Actually there's another HPS on the other end of the street but it's not used anymore.