On Mar 22, 10:20�pm, wrote:
Reading this thread, these are some things that have occured to me.
I'm not an expert on soil conditions in Virginia, but my job is in
road construction. �So here goes:

1. �The principal trouble is that there's no barrier between the
driveway and the sub-base. �This allows mud to migrate into the
driveway aggregate and vice versa. �A layer of geotextile fabric is
the best, most effective and least expensive way to provide that
barrier. �Were it me, I'd look at woven versus non-woven fabric, but
that's entirely up to you. �Expect to pay between 50 cents and a buck
per square yard of driveway surface, and the fabric comes in rolls
with widths of 12.5', 15' and 17.5'. �You will have considerable
waste.

2. �The aggregate for you driveway is, as another poster mentioned,
not the best for a road base. �Round rocks roll against one another--
hey, that was alliteration! �Anyway, if you're stuck with what you've
got, you need to amend the road base with some well-graded material,
i.e., some stuff with lots of different particle sizes. �Around here,
#610 limestone with fines is the standard, but if you plan to reuse
what you have, I'd maybe try some #411 or something similar. �The idea
is to have as few voids as possible between as widely varied particle
sizes as possible. �A much less expensive, but less stable alternative
is to use sand/clay fill.

3. �Your driveway or the soil under or next to it is holding water.