This unit 11 deals with the supervisory requirements for monitoring excavation on the public highway. This unit is available for supervisors only.

At the end of the course the candidate will be able to:

• Observe an operative excavating a trench where services are present
• Record observation made and explain reasons for agreeing or disagreeing with site operations and working practices
• Explain any remedial action required
• Complete the part B question paper
• Identify a range of backfill materials class A to E
• Field test a range of backfill materials, confirm their suitability or unsuitability and give reasons for this.
• Identify carriageway/footway types and layer construction

On completion of the course delegates will will receive a CAWBI certificate and this unit can also go towards an overall streetworks qualification.