There are two viaducts across the Forth here, the main line to Perth and the line to Alloa. The SPT liveried turbostar is on the far viaduct on the Alloa road. It is working......
This structure was refurbished with the rebuilding of the Alloa route and an unknown class 158 Sprinter crosses the Caledonian Railway built viaduct with 2N60 1341 from Alloa to Glasgow Queen Street.
This caught me out as I was walking from the carpark to get to the new bridge over the station. But it is a good shot at a good location. 66557 comes off the Alloa line at Stirling station with empty hoppers from Longannet back to Hunterston for reloading. The working is 4C07, 1326 from the power station.