As a sidenote...there has been considerable construction on a major highway extension nearby as well as a lot of work on the exiting roads. One of the main exits runs alongside a very swampy area so they shored up the ground for the road by augering 50+ holes into the ground about 3 ft diameter perhaps 50 ft deep then placing tubes in and filling them with cement. They also added some kind of metal, corragated sleeves to it...one side remains swampy, the other dry.
What I'm trying to say, Mark, is you should drill some 3 ft diameter holes by 50 ft deep in your back yard, then fill them with cement.
