this image illustrates the principle of how they form in my area. I was able to attain a soil map showing where the different types of soil intersect
Here is a synopsis of the three soils on my property in order of steep to flat.
Travis Johnson wrote:There are two types of springs, and you have described the first type that is concentrated by nature, and comes up in one spot. For the kind that you have, which is spread out, you simply gather the water into a concentrated area for it instead.
To do that takes inexpensive drain tile, which is a misnomer because it is actually just perforated plastic pipe,, about 4" in diameter, and costs $55 for 100 feet where I live.
What you want to do, is get enough pipe to branch out in a Y shape, or multiple y shapes like branches off a tree, and concentrate all that water to a central point that is down hill by at least 1/4 inch per foot of linear travel. That will gather up as much water from the wet area and concentrate that water to a single point. Here, you dig a hole as deep as you can go/want, lining it with well casing. This is 4 feet in diameter, concrete tiles. You want to bring your drain tile so that it terminates inside these tiles by drilling a hole through the side of one of them. Then at the bottom of the drain tile, put in several inches of screened gravel so that as the water runs in, it will be in a clean environment.
From there you can buy a manway cover that goes on top of the well casing, or build a wooden well cover like they did back in the old days. If the well is deeper than 4 feet, I would go with a cement cover only for liability purposes as wood structures rot leaving wells open to be walked into by kids and those unaware.
John C Daley wrote:This is an area of expertise for myself.
Basically if you study road building you will see what to do.
I recommend in Australia the following=
Geo fabric is great in a lot of cases but it not low priced
First layer of rock should be 40mm crushed rock, with no fines in it. Crushed rock with fines is called Crushed rock 40mm minus.
When its settled a bit , say 12 months add another layer of 20mm minus, crushed rock and out a roller or wackier over it.
This should be perfect.
A couple of extra tips;
Any decent truck driver should be able to spread the rock by fitting chains to the tailgate to limit how far the tail gate opens, then as he lifts the tipper and reverses backwards the rock will spread out and he has a solid surface to travel over.
If he lifts the load whilst sitting on sloppy mud, he may get bogged.
Also, if you are building anything, I suggest you get the 40mm laid first, then have the builders drive over it to attend to the construction and they will help compact it, not get bogged on the site and they will love you.
Then when its finished spread the 20mm.
The bigger rock will settle into the mud and create a stable base for the 20mm minus.
If you apply the 20mm minus first the mud and water will come through it and become a boggy mess again.