The 18,000 bu crib was state of art in its day, Built in the 50's had a driveway with dump pit and vertical elevator buckets on chain. When both sides of the crib were full, there was an elevator in the top that would carry the corn to one large crip next door. It was as I remember 60 foot long and probably 25 ft high. Above the driveway were 2 bins that held shelled corn or oats etc.  I sure wish I had pictures.