Damaged underground services
Damaged underground service / service strike
Service strikes can injure people, interrupt neighbours, create emergency response, and cause major cost/delay.
What it looks like on site
- Water leak, gas smell, exposed cable, broken pipe, fibre/telecom line cut, power outage
Possible causes
- No service locate
- Hand digging not used near services
- Old as-built inaccurate
- Excavator too close
Immediate action
- 1Make the area safe first. Stop only the affected workface if continuing could make the issue unsafe, hidden, or harder to fix.
- 2Take wide, medium, close-up, and context photos before anything is moved or repaired.
- 3Check the latest consented drawings, specification, RFI responses, site instructions, and inspection requirements.
- 4Tell the responsible subcontractor what you have found and ask for their proposed correction in writing if the issue affects quality, cost, time, or compliance.
Step-by-step fix
- 1Identify the exact location using room name, gridline, elevation, peg, manhole number, footing line, or drawing detail reference.
- 2Compare the site condition with the approved documents and manufacturer instructions.
- 3Decide whether the fix is simple workmanship correction, RFI, engineer/designer direction, minor variation, amendment, or council inspector discussion.
- 4Agree the person responsible, repair method, hold point, and reinspection evidence before work resumes.
- 5Complete the repair, photograph the corrected work, and update the defects/RFI/variation/inspection register.
- 6Record programme impact, cost impact, and who was notified in the daily report.
What not to do
- Do not cover, backfill, line, clad, tile, paint, or pour over the issue to keep the programme moving.
- Do not approve a technical fix verbally when structure, moisture, drainage, fire/safety, H1, or consent compliance may be affected.
- Do not rely on memory. Record the drawing revision, detail number, photos, people contacted, and agreed next action.
Source / Where to check
Use for excavation risk management, trenching, collapse, services, access, exclusion, and emergency planning.
Use WorkSafe NZ for construction health and safety duties, risk management, and practical guidance for residential construction work.
The issued consent drawings, stamped specifications, engineering drawings, RFIs, minor variations, and amendments control the specific project.
Insufficient data to verify — check the consented drawings, project specification, relevant NZ Standard, or council requirement.
Inspection impact
If the issue affects an inspection area, record whether the inspection must be delayed, rebooked, failed item closed, or discussed with the council inspector. Do not conceal the work until the inspection/evidence requirement is satisfied.
Example wording for daily report
Damaged underground service / service strike: issue identified at [location]. Work paused in affected area. Photos taken. Checked [drawing/spec/RFI]. Contacted [person/company]. Agreed action: [fix]. Inspection/programme impact: [impact]. Follow-up due [date].
