Actually, it's "continous flight over people or moving vehicles" you can legally transverse over moving traffic and people to get from point A to point B
The original concrete silo type S041 with 4100 tonnes capacity built in1934. The larger scalloped silo type A285 had a capacity of 1 million bushels or 28500 tonnes was added in1955.
The rail ceased operation in the early 1980's and the silos...