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Question DetailsAsked on 7/22/2012

Our landscape wall needs removed but is located behind our septic system. Our system is "U" shaped.

The landscaping wall is constructed of large cement slabs each one is, aprox: 18 inches thick, 4 foot long, 3 feet or so high. How do we remove the slabs and shrubs if we cannot drive over our leach field with tractors or backhoe? How much weight (including vibration from equipment) is allowed over a leach field without damage?

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1 Answer


Depending on where you live you are probably going to need an engineer to determine the weights involved (removal equipment + slab weights) and the stress capabilities of your leach field. He/she will need to know how deeply the leach field is underground, how long (total) the wall is, how close to the wall is the outer edge of the leach field, etc..

There are specialty mats for equipment that diffuse the weight of the equipment and its' comntents that can be rented by the equipment operator. There are are specialized pieces of equipment with long reachs that can be posityioned a significant distance away from the wall to dismantle it (think of a crane).

Regular concrete (non-steel reinforced) weighs in at approximately 150 lbs. per cubic foot and your wall pieces are about 18 cu.ft. Expect the pieces to weigh AT LEAST 2,700 lbs.

It is possible that a company that speciaqlizes in excavating can answer your questions after a site visit, but local regulations may require an engineer for this sort of job.

Answered 7 years ago by Labour of Love

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