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NRSWA Revision Street Works · England

O3 — Backfill & Compaction

Find It in the SROH

Look-up drills: you are given a heading and asked which document and section it belongs to.

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Free O3 questions: Find It in the SROH

These questions are in the practice set above. Answer them there to see the correct option and the explanation for each.

  • A supervisor is deciding whether spoil coming out of a reinstatement can be re-used or must be treated as surplus, and needs the provision that first sorts material into the Code's lettered classes. Which provision is that?
  • Before backfill goes into the trench, a ganger squeezes a handful of the fine fill to check it is not too wet to compact properly. Which provision sets out this kind of on-the-spot check on the material?
  • A batch of granular backfill for a carriageway trench has already passed its basic classification, but the crew still needs to check the material against the frost heave and maximum particle size limits that apply on top of that. Which provision adds those extra material requirements?

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NRSWA Revision: Street Works is independent revision material. It is not affiliated with, endorsed by or approved by HAUC(UK), SWQR, any awarding organisation or the Department for Transport, and it does not award a qualification or a card.