Since our backyard is only used for our dogs to poo on, I convinced the wifey to let me build my own track.

I have to sell a K2 frame/fork & a Schwinn MTB to get the $$$ for a couple of dumptruck loads of dirt. I also am borrowing a tiller from my parents.

My Hometheater room is right next to the backyard, so I can open the sliding door & jam while riding.

SWEET!!!

I had been building a track in some woods near my house, but none of the other riders in my hood were helping build it so I told 'em to stickit!

So basically what you're saying is that you're going to pay for dirt, instead of simply digging coffins between jumps and pits between lips and landings. Why?

I have 2 trees in the back yard, so I don't want to have to cut through the roots that are about 6-12" below the surface. Also I want hella-berms.

If it wasn't for the roots, I'd just dig down...

better to not dig out holes.

The berms could cover any small trenching I will be doing.

From past experience of digging in HELLA wooded backyards (haha mude...) Once you get like 2-3 feet down...theres nothign but clay and niice dirt...
But the neighbors dont like 5-6 foot holes that they can see from their windows, but then again nor would they like the "piles" of dirt or "motocross" track you would build there either....


I guess if you have the money its not soo much of a waste to get a truckload of NICE not-so-rocky dirt...

What's scary is that I can actually explain why that is, how long it takes to form that clay, and that what you're looking at is a Bt soil horizon...

Sweet! What class do you learn that in? Like Earth Science or something?

Geomorphology, actually.

I have a privacy fence surrounding my back yard.

And only 2 trees.

As opposed to what? An electrified cyclone fence topped with razorwire to keep the raptors out?

Read all of what I quoted.

Apparently you didn't...

I read what you quoted. I don't expect the average house to have a chainlink fence or a glass partition separating their property from their neighbors'.

Careful building up a lot soil anywhere under the dripline of those two trees. 90% of the roots of most trees are in the top few feet of soil. Raise the grade by more than a few inches and you cut off oxygen to the roots and risk damaging the trees.

Thanks for the advice fellow Texan.

I did happen to know that though. I used to do landscaping for a living (back in the day). I will be outside the outer diameter of the dripline.