[HIDEK6]

No, put them the other way.

30 containers at 3 yards wide (9’ to allow clearance) are 90 yards. Three rows of 40’ will take up 120’ or 40 yards, fitting into the 50 yard width of the football field.

[HIDEK6]

At any rate, no way will it take 15 football fields to accommodate 135 containers, especially not if you are using the 20’ long ones.

[FDNYRHEROES]

No, put them the other way.

30 containers at 3 yards wide (9’ to allow clearance) are 90 yards. Three rows of 40’ will take up 120’ or 40 yards, fitting into the 50 yard width of the football field.

So how do you pick them up, being able to get to anyone of them at the same time? That was one of your other assumptions...