22d & 44a. North York moors viaduct (5, 4 & 6) ?L?E? BEC? ?R?D?E
Suspect ?L?E? BECK BRIDGE but just can't find a definite candidate. There is a reference to FLEET BECK as a feature of the River Tutt, subsidiary of River Nidd - but alas can't find reference to a viaduct.