There are generally two sand trains per day from Middleton Towers, one in the morning and one in the afternoon. On August 17th 2023 the afternoon working of 25 wagons (hauled by Freightliner Class 66 No. 66622) arrives at Kings Lynn and runs into the loop for reversal, which usually takes in the region of 20 minutes, and the onward journey to Peterborough, Crewe and St Helens. Photo: Michael Smyth.