Winthrop, WA
16 pics

23 Jul 2007
Status unknownCheck attempted on "as of" date (usually via GSV in this case), but status of light could not be determined at that time, usually as fixture could not be found again
as of Jul 2019
Starting not in Winthrop itself, but as I rememeber this is on Hwy 20 between Winthrop and Twisp, a lone Form 400 which, looking from the intact remote ballast, might still work. It's on a gas station forecourt.
Pic taken July 2007.

23 Jul 2007
SurvivingChecked on "as of" date (either in person or via latest GSV available), so can be assumed to be surviving at least as far as that date
as of Oct 2008 (GSV very old for this location)
The roadway lights themselves seem to have been done at the same time as the rest of the conversion to 'part theme park' look, in the 1970s...
Pic taken July 2007.