01

Route & geometry

  • Total intended inspection length
  • Cross-sections, gradient and elevation profile
  • Bends, transitions, constrictions and known obstructions
02

Water & operating conditions

  • Depth, flow range and expected visibility
  • Sediment and debris conditions
  • Isolation, shutdown and site permit requirements
03

Access & field logistics

  • Entry opening and launch/recovery area
  • Lifting, reel location and available power
  • Staffing, communications and emergency access
04

Inspection & evidence

  • Defects or condition to be assessed
  • Coverage and sensor requirements
  • Position reference, data formats and acceptance criteria
05

Failure & recovery

  • Response to snagging or lost communication
  • Retrieval equipment and contact points
  • Exit conditions and site owner responsibilities