Thank you all for invaluable information. You guys are just
great!

My mother lives in Maryland, suburb of DC. Not unusual for
us to get snow as high as a foot or more if it is not taken
care of ASAP. She usually hires some neighbors' kids to
blow the snow when it gets too high. However last year she
let the snow piled up untouched and just took a vacation
from work for a couple of weeks. This year she said she
will be prepared for the worst. Big piles of firewood.

A stretch of her driveway was quite steep, 15-20 degrees may
be. Her only concern was that she just had it resurfaced
(asphalt but not yet sealed.) Would the weight and chain
do real damage to the surface?

Thanks!
pac