Trouble is having lived in Maccelsfield and still having family there I know the viaducts over the railway between Macc and Congleton and the viaduct in that photo isn’t either of them. I also have a photo of an uncamouflaged Kite near a viaduct which doesn’t look like any that are near Macclesfield (its too long), yet in other photos it is obviously the viaduct over the River Dane as Bosley Cloud (a hill) is visible in the background. Interestingly one photo shows a Hotspur Mk 1 in a ploughed field with the viaduct over the road visible in the background.
From all this I conclude that the exercise of landing gliders near railway bridge ‘targets’ was done more than once and at more than one location. As I said previously, the early work of the CLE were poorly reported.