Earthwork in excavation and backfilling of soil up to required depth is required for construction of foundation. The proper sequence of excavation and backfilling is required to optimize the process and prevent safety issues. Excavation and backfilling of soil is a very important part of the construction process, and care must be taken while excavating in safety perspective. Different soil layers may be encountered while excavation, dewatering may be needed sometimes. These points must be kept in mind to take necessary action during excavation and backfilling. Correct measurement of excavation and backfilling is required because excavation cost is major part of the foundation construction.