Oh, in that case, pull away the gravel, fill in with dirt, and replace
the gravel.

Unless "dirt" is a whole hell of a lot cheaper than gravel,
you're better off just dumping more gravel on top, assuming
that raising the roadbed is a viable option.

But my understanding was that OP's problem involved a garage that was
built below-grade. and therefore, at least part of the driveway
ALSO has to be below grade.

The only solutions to that a
A: Extend the garage to include that section of the driveway,
thus keeping the water out, and
B: Moving the water the DOES collect there.
C: Build a detached garage somewhere else.

For option B:, the method with low initial and high operating
costs is to install pump(s), and the method with high initial
and low operating costs is to install gravity drains to some
section of the property lower than the roadbed.

--Goedjn