FarmI wrote:
"Tony" wrote in message

One would surely power the pump. The narrow width could be again because
it is a used bridge. The trusses were used but they put it together again
narrower than original. It didn't need to fit a tractor, no tractor was
going to squeeze past the pump anyway.

:-)) Yebbut, did it always have that motor? Can you win the kewpie and
answer?

I would guess the motor was added after it was moved and put together
narrower than it was originally. Before being moved it was wider to
handle vehicle traffic, and again, it had no motor/pump in it's first life.