Here's a night shot showing the string of mercs taken from the same angle as the day shot. The lumes are all 1970s era Powerlite B2227s with 175w /DX lamps.
Nice. My grandparents' street looks like this except with 100w M-250R and M-250A and most of the lamps were likely put in about 15-20 years ago. I HAVE seen NGrid relamping some instead of replacing, but most continue to burn very dim lamps.
Here any mercs left (which isn't many, but a good amount compared to other states and provinces) have the origional gear and all mercs here (excpet for the one or two 100w MV 113 and 100w MV M-250A2 FCO) were installed before the 80's. There are about 7 400w mercury M-400 at the Veterans Memorial Ice Rink in Cranston. There are no thumb latchs and only one or two still work. I'm sure they won't be serviced any time soon, but I'd rather have them stay the way they are tham risk them getting taken down. NGrid doesn't service any mercs over 175 watts.