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RA-2026-3ARiOZI8 AEN - Approved except as Noted

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Client
Consultant
Contractor
Sub-Contractor
Task Risk Assessment Worksheet
Contract No
190707
Ref
RA-2026-3ARiOZI8
Date
10.08.2026
Rev
A
Project
132 kv cable works
Client
Taqa
Consultant
Green
Main Contractor
El Sewdy
Subcontractor
Heliopolis
Activity
Route Marker
Assessors
—
Project Manager
signature
—
HSE Engineer
signature
—
Project Manager
signature
—
Civil Engineer
signature
—
HSE Engineer
signature

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
Site Survey & Pre-excavation Utility Locating
Unmarked underground live electrical cables, gas mains, and telecom lines
Electrocution, arc flash, gas explosion, severe burns, utility outage, or fatality
Site Personnel, Subcontractors, Public
Review utility drawings, use CAT & Genny (Cable Avoidance Tool) to scan the route, mark detected utilities clearly on the ground.
P 4 × S 5
20
Issue a formal Permit to Dig (PTD); perform manual trial pits using non-conductive hand tools prior to any heavy work.
P 2 × S 4
8
10
Setting Up Temporary Traffic & Pedestrian Management
Passing vehicular traffic, distracted drivers, and public pedestrian movement near work zone
Vehicle-pedestrian collision, crushing injuries, public slips/trips, fatality
Site Personnel, Subcontractors, Public
Erect temporary traffic cones, warning signs, and pedestrian barriers in accordance with local roadwork standards; wear Class 3 Hi-Vis clothing.
P 4 × S 5
20
Utilize temporary traffic lights or flaggers for high-density areas; position a safety vehicle with amber beacons upstream of the work site.
P 2 × S 3
6
11
Offloading and Manual Handling of Concrete Marker Blocks and Posts
Heavy loads, awkward lifting postures, dropping heavy concrete/metal objects
Musculoskeletal disorders (MSDs), spinal injuries, crushed fingers/feet, cuts
Site Personnel, Subcontractors, Public
Assess load weights prior to lifting; use two-person team lifts for loads over 20kg; wear safety boots (steel/composite toe) and cut-resistant gloves.
P 4 × S 3
12
Use mechanical lifting aids such as hydraulic cranes, mechanical grabs, or site trolleys; enforce maximum individual lifting limit of 25kg.
P 2 × S 2
4
12
Manual Excavation for Marker Post Footings
Sharp digging tools, repetitive motion, struck-by hidden cable/pipe, soil collapse
Hand/leg puncture wounds, electric shock, ergonomic strain, muscle fatigue
Site Personnel, Subcontractors, Public
Use insulated dig tools (rated to 1000V); dig parallel to expected utility lines; rotate workers frequently to prevent fatigue.
P 3 × S 4
12
Re-scan the pit with CAT locator as excavation depth increases; bench or shore pit walls if depth exceeds 1.2 meters.
P 2 × S 2
4

Activity Log

System • updated matrix
3 months ago
System • updated
3 months ago
System • created
3 months ago