The lights, refurbished as part of the recently completed restoration of the bridge, will then be switched off again for an hour on Saturday, March 31, as part of WWF’s Earth Hour campaign.
The Forth Bridge was originally lit in 1991, shortly after the structure’s 100th anniversary. The 1054 lights have been cleaned and resealed, with lamps and component parts replaced as part of a ten-year restoration carried out by Network Rail and Balfour Beatty.
The lights have remained switched off for around two years while work has been ongoing.
David Simpson, Network Rail route managing director for Scotland, said: “It will be great to see the bridge lit again after years of darkness.”