DOE, I packed 4x4x8 boxes on the mech deck at songs, for burial at hanford of low level non-compactible radioactive waste, each box had to have every square inch of space used, weighing no more than 2500 lbs each.
Hanford is a nasty place, site of woops, actually hanford is a bit further, they changed the name of woops, though, I believe, I worked at there boiling water reactor, I am not sure if that is the same type of GE plant that was hit by the tsunami in Japan.
Let me know if I can educate you more, old crock.