Kel Peterson - Critical Control Checklist - Excavation & Trenching

• Site conducted

  Select

• Conducted on

  Date

• Prepared by

• Location
  Address

• If 'NO' is selected for any of the controls - Work must stop immediately until the control is in place and verified

CONTROL: Positively identify all services within planned excavation area. Purpose: To prevent mechanical disturbance of known and unknown underground services

• Tick "Yes" if applicable

  Yes

  No

  N/A

• Proof of dial before you dig prior to the commencement of the excavation?

  Yes

  No

  N/A

• Inspection of the planned excavation site and surrounding area has been conducted to identify any visual indicators of buried services?

  Yes

  No

  N/A

• Cable locating used to verify location of known services within close vicinity of the planned excavation?

  Yes

  No

  N/A

• Spray paint on ground indicating where service is; depth, direction and Mechanical No Dig Zone?

  Yes

  No

  N/A

• Pot hole markers every five metres (Showing depth and direction)?

  Yes

  No

  N/A

• Excavation permit in place?

  Yes

  No

  N/A

• Additional precautions when working in vicinity of Known HV services: (Complete Below)

• Pot hole markers every three metres (Showing depth and direction)?

  Yes

  No

  N/A

• GPR (Ground Penetrating Radar) of entire planned excavation?

  Yes

  No

  N/A

• Slit trenches have been dug around the perimeter to the depth of the excavation?

  Yes

  No

  N/A

CONTROL: Isolate all identified HV electrical or high-risk services with potential to encroach within 5m of the planned excavation Purpose: To de-energise identified HV electrical and high-risk services within the planned excavation

• Tick "Yes" if applicable

  Yes

  No

  N/A

• Completed Isolation instruction for HV electrical and high-risk services?

  Yes

  No

  N/A

• Lockout / Tagout hardware in place?

  Yes

  No

  N/A

• Procedures implemented and control measures in place for high-risk services including Asbestos and Silica Dust?

  Yes

  No

  N/A

CONTROL: Minimum clearance is maintained from all underground services Purpose: To prevent contact with known services within the planned excavation

• Tick "Yes" if applicable

  Yes

  No

  N/A

• A dedicated spotter used when performing mechanical excavation in the vicinity of underground services?

  Yes

  No

  N/A

• 500mm separation from known live HV services is maintained?

  Yes

  No

  N/A

• 300mm separation from known HV and LV isolated electrical services?

  Yes

  No

  N/A

CONTROL: Excavations greater than 1.5m are benched, battered, shored or verified stable PURPOSE: To prevent excavation collapse

• Tick "Yes" if applicable

  Yes

  No

  N/A

• If excavation is greater than 1.5 metres in depth, benching (1:1 ratio & not exceeding 1.5 metres), battering (not exceeding a slope of less than 45 degrees) or shoring is in place?

  Good

  Fair

  Poor

  N/A

• (If the requirements above are not met, formal notification from a suitably qualified engineer is mandatory)

CONTROL: Heavy loads and machinery are stable and positioned outside the ‘zone of influence’ of the excavation PURPOSE: To prevent loads or machines falling into an excavation

• Tick "Yes" if applicable

  Yes

  No

  N/A

• 'Zone of influence' where the minimum set back distance is at least equal to the depth of the excavation is in place?

  Yes

  No

  N/A

• Set back distances in place?

  Yes

  No

  N/A

• No loads on zone of influence unless a shoring box is in place?

  Yes

  No

  N/A

• Battered sides of trenches and excavations?

  Yes

  No

  N/A

• Excavations are clear of persons when there is risk of plant or loads falling into the excavation? (no persons in the line of fire)

  Yes

  No

  N/A

CONTROL: Barricading of excavations that create a fall risk PURPOSE: To prevent a person from falling into an open excavation

• Tick "Yes" if applicable

  Yes

  No

  N/A

• If excavation creates a fall risk of more than 1.5 metres, either hard barricading on the edge of excavation OR soft barricading at least 2 metres from the edge of the excavation?

  Yes

  No

  N/A

• Sign(s) that say, "DANGER DEEP EXCAVATION” that warn people approaching the excavation?

  Yes

  No

  N/A

• No person putting themselves at risk of falling more than 1.5 metres? (including spotters)

  Yes

  No

  N/A

CONTROL: No persons working within the slew radius of mobile plant during operation without positive communication with the operator PURPOSE: To prevent mobile plant from striking a person

• Tick "Yes" if applicable

  Yes

  No

  N/A

• Spotter in place using positive communication with the machine operator?

  Yes

  No

  N/A

• Bucket grounded and control de-activated before person enters the slew radius exclusion zone?

  Yes

  No

  N/A

• No person in the slew radius exclusion zone during operation?

  Yes

  No

  N/A

• Exemption for workers protected by the sides/wall of a trench or excavation?

  Yes

  No

  N/A

CONTROL: Emergency Response PURPOSE: To mitigate the impact on human life of exposure to unsafe conditions during excavation and trenching works

• Tick "Yes" if applicable

  Yes

  No

  N/A

• High risk rescue plan in place for workers entering an excavation deeper than 1.5m?

  Yes

  No

  N/A

• Spotter in place as per the rescue plan?

  Yes

  No

  N/A

• If the mobile plant spotter is the dedicated rescue person, do they have visibility of all persons in the excavation?

  Yes

  No

  N/A

• Rescue equipment in place (as per the rescue plan)? e.g. davit arms on shoring box, ladders every 9m

  Yes

  No

  N/A

• First aid resources and first aid trained workers in place?

  Yes

  No

  N/A

Additional Information

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