The old saw about Soviet era Russians stealing light bulbs by swapping their old dead bulbs from home for working bulbs in public facilities comes to mind.
But after the crash they might simply have put down brighter strings of lights as extra assurance against a repeat occurrence in their heavy fogs.
I wouldn’t be surprised that they were seen putting the lights back up on their posts, supported by concrete markers.
There is one photo where the lamps were clearly old and broken but behind them on the wooden fence, the lights were setting in a temporary fashion.