In earthwork, how are isolated compaction operations treated?

• A. As part of a single continuous lot.
• B. As no lot.
• C. As separate lots.
• D. As a final design requirement.

Answer: (C)

Isolated compaction operations are treated as separate lots. In earthwork QC, each distinct compacted area is considered its own lot so that density tests, acceptance criteria, and payment can be tied to that specific area. This prevents averaging results across non-contiguous sections and ensures the required density is achieved for every isolated operation. Treating it as a single continuous lot would mask variations, and calling it not a lot would ignore the QC framework. It isn’t a final design requirement—the compaction criteria are part of construction QC and payment, not the design itself.