Dry Stone Retaining Wall
In August 2002, on my vacation, Melissa and I built a stone wall. Melissa laid
most of the courses of stone, I laid most of the gravel and handled all of the
demolition and digging. We decided that we wanted a wall that looked more
natural than many of the newer walls, so we shied away from the squared-off
stone and the fabricated bricks. This did two things for us
-
It looks more "natural". This is something Melissa really wanted.
-
The wall has lots of little nooks where toads and skinks can live (we get a lot
of toads in the driveway and skinks around the house in the summer)
-
It saved us a ton of money. The squared-off and common thickness stones
are much more expensive than the rough multi-sized ones we picked up
-
We found some shell fossils in the stones :-)
Here is a photo of the wall as it existed when we bought the house. It
was built using standard pressure-treated garden timbers held down by large
spikes.
You would never have guessed from the photo above that the garden timbers were
completely rotten and infested with about the largest colony of carpenter ants
I have ever seen! The inside of the timbers were completely
disintegrated. Since the timbers were pressure-treated, it was important to
dispose of them properly. Our local landfill collection area has special
bins for pressure-treated lumber. You should never dispose
of pressure-treated wood by treating it like you would normal wood.
Pressure-treated wood has hazardous chemicals in it that kill wildlife as well
as pollute the ground water. Always wear gloves when handling
pressure-treated wood, and a breath mask if you care cutting it.
Here's the load of wallstone that it took to complete this wall
Here's a couple fossil imprints we found in one of the stones
All the timbers have been removed, and a small base of 1/2" blue stone gravel
has been put down in a shallow undercut to help with drainage, weeds and
freezing damage. The earth was also angled up and away from the wall as
best as I could without damaging any of the nearby plants.
Here the second course of stones has been laid, and the area behind them
backfilled with the 1/2" blue-stone gravel The gravel helps seat the wall
stones, but more importantly, provides a barrier against erosion and water
damage.
Here the wall is complete in the corner, barring some touch-up later on. The
highest point of the wall is in the 90 degree inside corner in the left third
of the photo. It tapers off in both directions from there.
Here is an evening picture of about 3/4 of the wall. The completed wall used
four half-pallets of flat stones and one ton of blue stone 1/2" gravel.
Here is a nice photo of the wall from April 2003, right after Melissa used
the leaf blower to clean off the driveway of all the tree pollen and other
debris. The wall extends further on towards the camera. The
stones have weathered a pretty severe winter quite well, and any that did
fall (due to overly aggressive shoveling or plowing, heh) were very easy
to reseat due to the complete lack of any mortar. We've already
noticed some skinks and toads living inside the pockets between the stones :-)
|