First, the surveyor gives the workers points that they use for measurements. They then put markings on the dirt where the column lines and footings must be placed. After this meticulous task, the workers get a backhoe and begin digging out the area.
After the trenches are dug, rebar or a reinforcing bar (a common steel bar used in reinforced concrete) is placed in the holes that have been dug. In addition, plates are installed that will be used to mount the steel beams. Once this is completed, the City inspected the work and then concrete is poured.
Once the concrete dries, the finished foundation is ready for placement of the steel beams. Depending on the size of steel that will be placed, each footing is approximately 4 feet square and 3 feet deep.
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