The area between the garage doors and the driveway has a 1" gap. The
driveway seems to have "shrunk" with the icy winters. The depth is
about 4-5".

How do I fill this gap? I thought of using cold patch, but since the
gap is so narrow, I probably will not be able to get the patch chunks
in compactly. Can I use sand to fill in most of the depth, then cold
patch the last 1"?

I am looking for any suggestions.
thanks
Mark