Understanding center line and excavation drawings, putting out plan on ground, digging dirt, and removing surplus soil are all part of excavation labor on a building site. The process of moving earth, rock, or other materials with tools, machinery, or explosives is known as excavation. The person doing the excavating is an excavator. An excavation plan shows the layout of the work to be done. It includes the location of support beams, concrete footings, and other features that must be exposed in order to put up the building that will use these things as anchors. The plan should also show the location of any underground utilities such as water, gas, electricity, and sewers. The type of equipment that will be used during the excavation process will also influence what information should be included in the plan. For example, if a backhoe is being used, the plan should include information about the depth that the bucket can be placed in the hole and still reach the ground's surface. Below is a typical layout for the excavation plan: 1. Site survey/map - Shows the location of existing structures and features such as utility lines that cannot be moved. Includes property boundary lines. 2. Centerline - Shows where the foundation walls will go. Concrete forms are used to make these lines before the concrete is poured.