Pretty close to my measurements, except I'd go for the lower end on the length.
BTW, I have an e-mail from a colleague (an expert on ANNM binary explosives) who bills himself as "the Blaster's Friend". He says the crater should approximate the size and shape of the truck bed. So I would expect an oblong crater...
OTOH, neither you nor I saw a "32-foot diameter" crater -- especially in the N-S direction, which, from a building damage standpoint, is the dimension that matters most...
BTW, my estimate for the N-S dimension was 16-18 feet.