Telecoms Cable Pits & Underground Hauling SWMS
Cable pit access, manhole entry, conduit hauling. Confined-space classification per AS 2865, traffic management on public road carriageways, sewer-gas atmosphere where pits adjoin shared trenches.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Telecoms cable pit access, manhole entry and underground conduit hauling work expose technicians to a convergence of confined-space, traffic, and atmospheric hazards rarely encountered together in other trades. Most street-side pits and joint-use manholes meet the confined-space definition under AS 2865:2009 because they have restricted entry, are not designed for continuous occupancy, and can accumulate sewer gas, methane or oxygen-deficient atmospheres where pits adjoin shared utility trenches. Hauling cable through conduit additionally introduces mechanical pinch, winch line-of-fire, and manual handling forces that routinely exceed safe limits. Under WHS Regulation 2025 Part 4.3 (Confined Spaces) and Part 4.5 (Traffic Management), a documented Safe Work Method Statement is mandatory before any worker breaks the plane of a pit lid on a trafficable carriageway. This SWMS satisfies that statutory duty and provides the pre-start framework crews must sign on to each shift.
Hazards identified
7 hazards covered, sorted by priority.
Olfactory fatigue at 100ppm followed by rapid unconsciousness and asphyxiation at 500ppm; fatal within minutes without rescue
Impaired cognition, collapse and asphyxiation; entrant cannot self-rescue and standby person at risk during retrieval
Vehicle strike causing fatal crush injury or amputation; secondary collisions with traffic controllers and crew
Steel haulage rope failure under tension causing whip-back lacerations, fractures, and potential decapitation injuries
Electrocution from 230/400V exposure, arc flash burns, and induced voltages on telecoms sheaths up to lethal levels
Acute lumbar disc injury, crush injury to hands and feet, and chronic musculoskeletal disorder from repeated lifts
Leptospirosis, hepatitis exposure and chemical dermatitis from sewage cross-contamination or hydrocarbon ingress
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Use existing surface lead-ins or aerial reinforcement where feasible to eliminate pit entry entirely, removing the confined-space exposure at source.
- 2Elimination — Reschedule works to off-peak or full road closure windows to remove live traffic interaction with the work zone perimeter.
- 3Substitution — Substitute manual cable pulling with powered rod-and-rope tractor systems rated to AS/NZS 3000 to reduce hauling tension forces on crew.
- 4Substitution — Replace cast-iron pit lids with composite covers under 25kg during scheduled refurbishment to remove heavy manual handling.
- 5Engineering — Force-ventilate pits with intrinsically-safe blower for minimum 10 minutes pre-entry; continuous 4-gas monitoring (O2, LEL, H2S, CO) per AS 2865 clause 3.4.
- 6Engineering — Deploy compliant TGS-compliant traffic control plan with hard barriers, truck-mounted attenuator and signed taper per AS 1742.3 on all carriageway pits.
- 7Administrative — Issue Confined Space Entry Permit signed by entry supervisor, with named standby person, rescue plan and gas log retained 2 years per Reg 2025 s76.
- 8Administrative — Conduct documented pre-start SWMS sign-on, verify Confined Space ticket currency (RIIWHS202E), and isolate adjacent LV per electrical authority permit.
- 9PPE — Full-body harness with retrieval winch tripod, escape BA set rated 15 minutes, AS/NZS 4501 chemical-resistant gloves and AS/NZS 4602.1 hi-vis Class D/N garments.
- 10PPE — Arc-rated FR coveralls minimum ATPV 8 cal/cm², AS/NZS 1337 sealed eye protection, and AS/NZS 1801 Type 1 helmet with chin strap for retrieval clearance.
Applicable Codes of Practice
Defines pit/manhole classification, mandates atmospheric testing, ventilation, permit-to-enter and standby person duties triggered for every telecoms pit entry.
Governs sewer gas and contaminated water exposure controls, monitoring records and health surveillance obligations under WHS Reg 2025 Part 7.1.
Prescribes the signed taper, buffer and longitudinal clearance distances mandatory when pits are accessed within or adjacent to live carriageway lanes.
Sets separation, isolation and induced-voltage controls where telecoms conduits share trench or pit space with LV electrical installations.
High-Risk Construction Work triggered
Deep joint-use manholes and lead-in pits frequently exceed 2m depth, exposing entrants and standby crew to vertical fall risk during access.
Underground hauling works terminate at tower base lead-ins, with the same crew often required to ascend the structure during cable termination.
Telecoms pits routinely share trench corridors with LV mains and street lighting, creating contact and induced-voltage exposure during hauling.
PCBU must prepare, consult workers on, and retain this SWMS for the duration of the HRCW plus 2 years after any notifiable incident; non-compliance carries Category 1-3 penalties indexed annually under the prevailing WHS schedule.
Who this is for
- →Telecoms civil contractors on NBN and carrier lead-in works
- →Underground cable hauling crews and pit jointers
- →Principal contractors managing shared-trench utility corridors
- →Traffic management subcontractors supporting telecoms pit access
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
A two-person hauling crew arrives at a suburban arterial road to pull 96-core fibre between two Telstra Type 6 pits, 180m apart, with one pit located on the carriageway shoulder adjacent to a sewer access chamber. At the pre-start brief the supervisor opens this SWMS on a tablet and walks the crew through the seven hazards. The H2S hazard is flagged as immediately relevant because of the adjoining sewer, so the engineering control — force-ventilate for 10 minutes and continuous 4-gas monitoring — is applied first, with the gas meter bump-tested and logged. The traffic hazard triggers deployment of the AS 1742.3 taper before any lid is lifted. Both workers sign the SWMS sign-on sheet, confirming their RIIWHS202E confined space tickets and harness inspection currency. Mid-task, the gas monitor alarms at 12ppm H2S as the second pit is opened; the entrant immediately exits, the supervisor pauses work, documents the trigger on the permit, and extends mechanical ventilation until readings return below 5ppm. The SWMS is annotated with the deviation and re-signed before re-entry, demonstrating the live-document function required under WHS Reg 2025 s300.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- AS/NZS 3000 — Electrical installations