weeds from last year

Last year I had a gang helping me to weed my allotment paths.  I am afraid it was raining so hard they just skimmed the weeds off and put them in a heap,  I covered the heap and now was wondering if I could put the soil on my raised beds.  I don't know if I would have loads of weeds appear!  I don't want to make matters worse, I would rather get rid of the soil somewhere than have loads of weeds apper.  Any ideas?