RISK ASSESSMENT FOR HDD CROSSING WORKS
PTW № (if required)
Work Title
HDD Crossing Works
Impact
10 •
Work
preparation,
mobilizing of
equipment and
setting up
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Use of untrained
personnel
Use of defective
equipment
Traffic incident
Moving or rotating
parts
Collision with
workers
x x
4
 Personnel injury
 Toppling of equipment
leading to damage of
equipment or
surrounding plants.
 Being struck / crushed
by moving plant
•
•
•
4
16
2
1
2
4
Ensure that all equipment operators are trained and certified
with CoC available
Ensure all equipment are inspected and in good condition
TBT shall be conducted by Supervisor on the risks involved
Ensure all guarding is in place.
Prepare any area that is unstable
Housekeeping – ensure routes are clear of debris/materials
Exit route and safe area to be discussed as part of TBT
Equipment and hand tools inspection must be conducted prior to
start
Set up a barrier around the front of the machine.
Keep bystanders away from machine and rotating parts while
drilling.
All hands and clothing need to be away from the pipe and
moving parts before any movement is engaged after the pipe has
been set.
All workers shall wear reflective vest for increased visibility
Mandatory PPEs shall be worn for work.
Provide portable fire extinguisher for equipment
1
4
Control Measures
•
2.
Risk
5
Likelihood
2
Severity
Dehydration
Heat stroke
Loss of conscious
Heat stress
Risk
•
•
•
•
Likelihood
Consequence
Severity
x
Reputation
• Adverse weather
• High temperature
• Direct sunlight
Environment
Activity during
hot weather
Equipment
1.
Hazards
People
Activity
Residual
Risk
Initial Risk
Ensure worker have enough cold water.
Provide rest shelter near to work site and follow rest schedule as
agreed by supervisor.
Wear thin and vapor permeable clothing.
In case of feeling unwell - Immediately stop work and report to
supervisor/HSE
In case of emergency leave worksite safely and proceed to the
nearest muster point according to procedure.
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1|Page
RISK ASSESSMENT FOR HDD CROSSING WORKS
PTW № (if required)
Work Title
HDD Crossing Works
Impact

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


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Drilling operation
•
•
Existence of
X X X
underground
services (such as
pipeline, cables etc.).
Rotating parts
•
•
•
Personnel injury 5
Equipment
damage
Damage to
existing facilities
3
15
4
Study the UG facilities drawing to understand location of the UG
facilities, and avoid such areas.
PH/Supervisor shall be onsite all through drilling activities to monitor
activity throughout work period.
Locate and verify existing utilities prior to excavation. Only use soft
excavation to verify the utility will not be damaged.
Expose the utility to the depth of the intended bore path.
1
4
Control Measures
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
4.
Risk
8
Likelihood
2
Severity
•
Personnel injury 4
Equipment
damage
Damage to
existing
underground
facilities
Risk
•
•
Likelihood
x x x
Consequence
Severity


Mechanical Failure
Collision with other
vehicles, people,
equipment
Blind spot
Striking existing
underground
services
Reputation


Environment
Mechanical
excavation
Equipment
3.
Hazards
People
Activity
Residual
Risk
Initial Risk
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Properly plan the activity
Before excavation, survey to know the existing underground services
in the area, if any – check the as built drawings for the UG services,
carry out UG scanning of the area.
Ensure that operator is competent and use signalman/flagman to
guide his operation
Comply with site speed limit especially in the area of operation,
mobilizing to site
Equipment shall be inspected and certified by 3rd party before use
Carry out pre-use inspection of equipment on daily basis
Flagman shall wear hi-viz vest for visibility around equipment to
guide equipment during operation at site.
All workers shall wear hi-viz vest.
No other worker should be working near the equipment during
operation
Operators must use horn during movement round the site
Ensure all rotating parts have adequate guards/ covers
Fire extinguisher must be maintained in the equipment during use.
Ensure spark arrestor of equipment are in good order and fixed all
the time.
Install spark arrestor for JCB, dump truck and front loader
2|Page
RISK ASSESSMENT FOR HDD CROSSING WORKS
PTW № (if required)
Work Title
HDD Crossing Works
Impact


Setup of Crane
and lifting of
pipes or
materials
•
•
•
•
•
•
•
•
•
•
Crane Instability or
Overturn
Damage
underground
Unauthorized/
uncertified
equipment in use.
Plant movements
Manual Handling
Incorrect operation
of crane.
Suspended load
exceeding lifting
capacity
Danger of slung
equipment become
uncontrolled
Manual help
Miscommunication
X X
•
•
•
•
Personnel Injury
Equipment damage
Being struck /
crushed by moving
plant
Material damage
4
4
16
3
1
3
Always track drill head at least every half to full length of pipe.
Maintain two-way communication with tracker.
Know emergency procedures.
Consider the size of the backreamer and ensure there is sufficient
clearance during pullback.
Keep everyone at least 10' away from the drill while it is operating.
Barricade the equipment area from unauthorized people.
Wear proper PPE.
Ensure all guarding is in place.
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5.
Risk
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Likelihood
Control Measures
Severity
Risk
Likelihood
Consequence
Severity
Reputation
Environment
Equipment
Hazards
People
Activity
Residual
Risk
Initial Risk
•
•
•
•
•
•
•
•
•
•
•
•
Plan all lift considering exact weight of load, radius and gears’
capacity
Establish proper positioning of load truck considering live plants
and lifting path.
Working Area to be barricaded off and unauthorized persons
kept away.
Develop a lift plan and ensure full compliance with lifting plan.
lifting equipment in use must be inspected by and confirmed
certified by third party certification.
No setup of equipment on or in UG barricaded area
Using outer rigger pads and Lift supervisor to visually inspect all
equipment, wooden pads to ensure they are free from defects.
Ensure the ground is suitable to take load.
Use web sling to lift rebar cage during welding to insulate and
prevent conduction of electricity
Use only certified lifting gears. Inspect and confirm that they are
in good condition before use.
Certified riggers to perform rigging operation
Use all mandatory PPEs.
3|Page
RISK ASSESSMENT FOR HDD CROSSING WORKS
PTW № (if required)
Work Title
HDD Crossing Works
Impact
•
•
•
•
•
•
•
•
•
•
•
•
6.
Manual handling
– loading and
unloading of
pipes

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
Untidy work area
Manual Handling
Sharp edges
X


Personnel injury –
hand injury
Back pain/strain
2
5
10
•
•
•
Risk
•
Likelihood
Weather condition
Control Measures
Severity
Risk
Likelihood
Consequence
Severity
Reputation
Environment
•
Equipment
Hazards
People
Activity
Residual
Risk
Initial Risk
2
1
2
For manual lifting/ handling, proper safe technique (bent knees
and straight back) shall be used to handle equipment with hands
Be aware of pinch points while working with the slings
Barricade work area from other personnel
Operator of equipment and riggers/banksman shall be certified
by 3rd party before working.
Ensure boom crane operator, rigger and banksman have clear
communication (hand signals).
Banksman should remain in communication and visual contact
with the Boom truck at all times and use high visible reflective
vest.
Only lift in good weather – no lifting above 9.8m/s wind speed
All load shall be tagged and guided by rigger
As much as possible avoid lifting over live facilities.
Check also for any overhead power lines or other structures
Lifting operations must stop if visual contact is lost. These
operations can only recommence when a clear line of vision is
re-established except a blind lift is planned with perfect
communication by radio between rigger/banksman and
operator.
Ensure the movements direction is away from the personnel live
system and facility.
Casing and funnel lifting hooks welding and bentonite mixer
lifting hooks shall be inspected and certified by 3rd party
Works area should be cleared of all obstruction and trip hazards
Use assisted lifting for light weights to prevent poor manual
lifting.
Use barricade to separate from other work areas
4|Page
RISK ASSESSMENT FOR HDD CROSSING WORKS
PTW № (if required)
Work Title
HDD Crossing Works
Impact
x x X
•
•
•
Personal injury
3
Property damage
Environment damage
3
9 
o
o
o
o
o
o
o
o
Risk
•
Likelihood
Control Measures
Severity
Risk
Likelihood
Slip, trip, falls
Damage the
surrounding
Consequence
Severity
•
•
Reputation
Moving or rotating
parts
Environment
Work Completion
and
demobilization

Equipment
7.
Hazards
People
Activity
Residual
Risk
Initial Risk
2
1
2
All hands and clothing need to be away from the pipe and
moving parts before any movement is engaged after the pipe
has been set.
Upon completion
Check work site for hazards
Remove tools and equipment
Remove barricade and signs
Remove the concrete debris
Remove the contamination soil and tools
Maintain good housekeeping at all time
Restore site to initial or a cleaner state.
All equipment shall leave site at the approved speed limit.
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RISK ASSESSMENT FOR HDD CROSSING WORKS
RISK MATRIX
6|Page