Get matched with top excavation pros in Wisner, LA

Silt fences should be trenched 8 to 12 inches deep to prevent sediment-filled water from escaping underneath. It also helps to anchor the fence during wet, windy weather. The silt fence fabric often has a red line to indicate the depth for digging. A good contractor will be familiar with the guidelines and regulations.

Septic tanks are typically buried between four inches and four feet deep, depending on the property, the soil, and the size of the tank. When the septic tank is buried on the deeper end of this range, it may be harder for you to locate it on your own with a soil probe or just by observing the yard for signs of the tank. However, if you have trouble finding the septic tank, a pro will be happy to help you.

The best way to protect tree roots is to avoid the roots entirely by excavating outside the root radius of the tree. For nearby projects, it’s a good idea to construct a temporary retaining wall. But that’s not always possible, depending on the project and the root system. In these cases, consider using alternative equipment like an auger to tunnel under the ground.

Remember, tree roots can damage nearby cement foundations as they grow. If a tree is close enough to interfere with large excavations, it may be better to remove the tree than risk future problems.

The average cost of excavation is around $3,200. Most jobs fall somewhere between $500 and $15,000, depending on the amount of soil to remove, whether or not there are landscaping features or structures in the vicinity that could complicate the excavation, and the quality and contents of the soil. Larger jobs will naturally cost more, as will those in tight spaces that demand manual excavation as opposed to using heavy machinery. Hard soil and tree roots can also extend the job and drive up your labor costs.