A layer of soil placed on top of soil previously placed in an embankment. This term can be used in reference to material as spread or as compacted.

A layer of soil placed on top of soil previously placed in an embankment. This term can be used in reference to material as spread or as compacted.

• A. Lift
• B. Layer
• C. Stratum
• D. Bed

Answer: (A)

In embankment construction, the unit of work is a lift—the layer of material placed on top of what has already been built and then compacted to specification. This term captures both the spreading of the material and its subsequent compaction, which is what gives the structure its density and stability. A layer is a more general term and doesn’t inherently imply the placement and compaction sequence. A stratum is a geological term for a natural layer, not the construction increment. A bed refers to a natural, often sedimentary, layer and isn’t used to describe the iterative layers added during embankment building.

In embankment construction, the unit of work is a lift—the layer of material placed on top of what has already been built and then compacted to specification. This term captures both the spreading of the material and its subsequent compaction, which is what gives the structure its density and stability. A layer is a more general term and doesn’t inherently imply the placement and compaction sequence. A stratum is a geological term for a natural layer, not the construction increment. A bed refers to a natural, often sedimentary, layer and isn’t used to describe the iterative layers added during embankment building.