Edit Risk Assessment

Reference: RA-2026-UQqrqhir

← Dashboard

topographical survey

Electrical

Select from dropdown or type custom status

Current: RET - Returned

📄 Document Management

Upload documents for different statuses

Click or drag to upload document for RET status

Supported: PDF, DOC, DOCX, Excel (Max 10MB)

No documents uploaded yet

Risk Assessment Matrix

SN Activity Hazard Consequence Groups Exposed Controls Initial Risk Additional Controls Residual Risk Actions
1
Complete HDPE Duct Infill
1. Vehicle movement and traffic hazards 2. Manual handling during loading/unloading 3. Uneven ground conditions
Personal injury, property damage
Site Personnel, Subcontractors, Public
1. Implement traffic management plan 2. Designated walkways 3. Mandatory PPE 4. Speed limit enforcement
P 3 × S 3
9
1. Comply with ADOSH SF CoP 27.0 2. Daily vehicle inspection 3. Toolbox talk
P 2 × S 2
4
2
Site mobilization and setup of temporary
Passing high-speed public traffic and moving site vehicles
Personal injury, property damage
Site Personnel, Subcontractors, Public
Approved TTM plan, high-visibility clothing (Class 3), physical water-filled/concrete barriers, advanced warning signs, and trained flagmen.
P 3 × S 3
9
Deployment of Truck Mounted Attenuators (TMA) and enforcement of reduced speed limit zone in coordination with local traffic authorities.
P 2 × S 2
4
3
Trench excavation and sub-surface ground preparation
Accidental strike on existing buried live electrical cables or gas utilities
Personal injury, property damage
Site Personnel, Subcontractors, Public
Utility mapping review, CAT & Genny cable avoidance scanning, and manual trial pits (pot-holing) prior to mechanical excavation.
P 3 × S 3
9
Mandatory Permit to Dig system, use of insulated hand tools near identified utilities, and continuous competent supervision.
P 2 × S 2
4
4
Uncoiling, handling, and positioning HDPE pipe
Sudden release of stored mechanical spring energy in coiled HDPE pipe
Personal injury, property damage
Site Personnel, Subcontractors, Public
Use of specialized pipe reeler/uncoiler frame, controlled strap cutting procedures, and establishing exclusion zones.
P 3 × S 3
9
Mandatory deployment of safety restraints/bands before unstrapping and wearing high-impact resistant safety glasses and gloves.
P 2 × S 2
4
5
HDPE pipe jointing via electrofusion and
High-temperature heating elements, hot molten plastic, and portable electrical generators
Personal injury, property damage
Site Personnel, Subcontractors, Public
Certified welding equipment, RCD-protected generators, heat-resistant safety gloves, and portable fire extinguishers nearby.
P 3 × S 3
9
Hot Work Permit implementation, provision of localized exhaust ventilation or respiratory protection (FFP3) in confined areas.
P 2 × S 2
4
6
Entry into underground chambers and manholes
Hazardous atmosphere (oxygen deficiency, toxic gases like H2S/methane), engulfment, or fall from height
Personal injury, property damage
Site Personnel, Subcontractors, Public
Confined Space Entry Permit, pre-entry 4-gas atmospheric testing, forced air ventilation, and tripod rescue system with harness.
P 3 × S 3
9
Continuous multi-gas monitoring during entry, dedicated trained top-person/standby monitor, and verified emergency rescue plan.
P 2 × S 2
4
7
Mechanical winch pulling of HDPE sub-ducts
High-tension winch wire snap, rotating capstans, and pinch/nip points
Personal injury, property damage
Site Personnel, Subcontractors, Public
Properly rated winching wire with calibrated weak-link swivel, emergency stop switches, and safety guards over rotating parts.
P 3 × S 3
9
Integrated load monitoring with automatic shut-off at peak tension limits and strict exclusion zones along the tension line.
P 2 × S 2
4
8
Duct proving (mandrel testing) and air
Uncontrolled high-pressure compressed air release and projectile ejection of foam pig or mandrel
Personal injury, property damage
Site Personnel, Subcontractors, Public
Calibrated pressure relief valves, secure containment/catcher cage at receiving duct end, clear exclusion zone enforcement.
P 3 × S 3
9
Mandatory Pressure Testing Permit, full-face protection shields for operators, and calibrated double-gauge manifolds.
P 2 × S 2
4
9
Mobilization and foot transit across uneven terrain and dense vegetation
Unstable ground, hidden holes, dense brush, and trip hazards
Ankle sprains, fractures, cuts, lacerations, or slips/trips/falls
Survey Technicians, Site Engineers
Visual ground inspection prior to walking, wearing ankle-support safety boots, clearing paths where necessary
P 4 × S 2
8
Mandatory use of high-visibility snake gaiters in dense brush, establishing designated walking corridors, carrying first-aid kits
P 2 × S 2
4
10
Surveying near overhead high-voltage power lines
Encroachment into safe clearance distances using extended survey poles or prism rods
Electrical arcing, severe electric shock, third-degree burns, fatality
Surveyors, Instrument Operators
Use of fiberglass non-conductive survey rods, maintaining safe distance limits per electrical safety regulations
P 3 × S 5
15
Deploy height restrictors/goalposts, maintain strict minimum approach distances (MAD), appoint a dedicated spotter, obtain a Permit to Work (PTW)
P 1 × S 5
5
11
Topographical mapping inside active electrical substations and switchyards
Accidental contact or close proximity to live busbars, transformers, and energized equipment
Arc flash explosion, severe electrical burns, fatal injury, power outage
Survey Crew, Substation Escort
Substation safety induction, work restricted to designated demarcated zones, mandatory escort by authorized electrical personnel
P 3 × S 5
15
Wear minimum Category 2 Arc Flash rated PPE, utilize laser scanners/robotic total stations to minimize personnel movement near live bay limits
P 1 × S 5
5
12
Driving survey stakes/pins into the ground near electrical infrastructure
Striking underground energized high-voltage cables or buried utilities
Electrocution, arc flash, power disruption, gas leaks/explosions
Surveyors, Field Assistants
Review of existing utility drawings and subterranean mapping before staking
P 4 × S 5
20
Perform CAT & Genny ground scan before driving pins, use non-conductive wooden/plastic markers where underground utilities are suspected, soft-dig/hand-dig exploratory holes
P 1 × S 5
5