RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
S.No
Description
Hazard
Hazard Effect
( Consequence )
Standard
Control
Measures
Risk Level
L
1
General and preparation
activities
Lack of communication
In adequate procedure
Unskilled personnel,
Weather condition,
Injuries to the
personnel,
Heavy rain,
High wind,
Poor
understanding of
workers,
2
Mobilization of
personnel
Less experience
personnel,
Poor communication,
Personnel with partial
disability,
Young workers.
Poor execution of
structure,
Failure to follow
workplace safety,
Difficult to
respond in
emergency
situations.
Safety
orientation to
the workers,
Tool box talk
for the workers
prior to
commencement
of activity
Must be aware
of weather
condition
Skilled
personnel
should be
employed,
The workers
should
understand the
local language,
Young workers
should be
monitored by
the foreman.
LXS=R
S
R
Additional controls and Risk
reduction measures
Action
Responsible
Residual
Risk Level
LXS=R
L S R
C
2
M
No hurry to
carry out any
activities,
Display
warning signs,
Provide
shelters to the
workers
Project
Engineer
A
1
L
C
3
M
Safety
awareness
trainings
should be
given to
workers,
Workers
should be
medically fit
to carry out
activities,
Young
workers
should be
trained and
monitored by
Project
Engineer.
B
2
L
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
the foreman
3
Mobilization of
construction materials
Wrong specification of
materials,
Less quantity,
Storage and
segregation of
materials,
Injury due to manual
handling of materials,
Exposure to dust,
Noise,
Harm to fingers,
Cut injury,
Falling object from
height,
Failure of heavy
equipment’s,
Speeding of the vehicle
in site,
Poor signalling,
Poor maintenance of
vehicle or heavy
equipment’s.
Poor structure and
inadequate quality,
Injury to the
personnel,
Spinal cord
dislocation,
Severe back pain,
MSD,
Silicosis,
Hearing loss,
Abrasion,
Head injury,
Overturning,
Caught in between,
Failure of brakes
and hydraulic oil
leaks.
Material
selection should
be in
accordance with
the standard,
Construction
materialsstorage
area should be
properly
barricaded,
Unloading of
materials under
supervision of
foreman,
No horse play in
the site,
Vehicles should
be maintained
properly.
Non-essential
personnel
should be away
from site,
Use PPE.
C
3
M
Materials
should be
stored in
designated
area,
Personnel
should be
trained
enough in
order to carry
out loading –
unloading
activities,
The vehicles
should not be
overloaded,
During rainy
season
material
movement
should be
done with
extreme care
and
supervision,
Signaller must
be available to
carry out
loading and
un loading
Project
Engineer, Site
In charge.
B
1
L
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
4
Marking the profile for
excavation of retaining
wall
Loose materials /
Stones
Dust
Wet Soil
Poor Communication
Awkward body
postures
Slip /Trip
Silicosis
Failure of contact
MSD
Severe back pain
Sprain
Remove loose
materials and
stones from site,
Use dust mask
to avoid
inhalation of
fine particles,
Do not twist
your body,
Personnel must
be able to
understand the
local language.
C
2
M
5
Excavation
Underground facilities,
Cave in,
Restricted access,
Lack of Lighting,
Oxygen deficiency,
Water flooding,
Poor communication.
Electrocution,
Damage to
pipelines, water
flooding,
asphyxiation,
difficult to escape
from the site,
IDLH.
Check for any
existing
underground
facilities,
Shoring must be
provided to
avoid sliding of
soil,
Personnel
should enter in
excavation with
C
4
M
activities,
Use PPE.
Clear the
workplace
prior to
commenceme
nt of any
activities,
Extreme care
to be taken
while working
on Wet soil,
Personnel
should be
aware of
manual
handling
techniques,
Appropriate
PPE must be
worn.
Do not keep
the excavated
soil near the
excavation
area,
Vehicle
movement
should not be
allowed near
the
excavation,
Site
Engineer,Crew.
B
2
L
Project
Engineer,
crew,
Vehicle
drivers.
A
4
L
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
adequate PPE,
If water
flooding occurs
must be drained
out prior to
enter in to
excavation.
6
Pouring of plain cement
concrete
Cave in
Slip/Trip
Inhalation of fine
particles
Manual handling
Fall from height
Falling of object
Overload
Awkward body posture
Silicosis
Back ache
MSD
Personnel Injury
Ensure shoring
is in place and
check for
stability,
Use dust mask,
Do not throw
mortar pan with
concrete from
higher level to
lower level,
Do not overload
the mortar pan,
Do not keep
C
3
M
Warning signs
should be
displayed,
Personnel
should have
adequate
access to
enter/exit
from
excavation,
Standby man
should be
available,
Personnel
must be able
to properly
communicate,
Use adequate
PPE.
Provide ladder
for access,
Use proper
manual
handling
techniques to
carrying
smaller loads,
Provide
barrier and
handrails to
avoid slip/trip,
Use PPE.
Site In charge,
Crew.
A
3
L
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
7
Dressing of Random
Rubble masonry
Flying objects
Inhalation of Dust
MSD ( musckelo
Skeletal Disorder)
Sliding of soil
Failure of shoring
Eye Injury
Silicosis
Abrasion
Finger injury
Cave in
8
Marking of retaining
wall
Slip/Trip
Failure of shoring
Lack of oxygen
Lack of sunlight
Poor communication
Asphyxiation,
Cave in
Unable to
understand the
language,
mixer machine
near the
excavation area.
Use appropriate
hammer,
Ensure the
hammer head is
secured wooden
grip available,
Do not twist
body,
Use safety
goggle to
protect eyes,
Do not leave
loose materials
on concrete
surface,
Provide Ladder
for ease of
access,
Ensure adequate
C
2
M
Use correct
Site In
tools,
charge,crew.
Trained
personnel
should be
available for
monitoring the
activity,
Use Dust
mask and
hand gloves,
Check the
stability of
shoring,
Ensure the
bracings of
shoring not
removed or
loosened.
B
2
L
C
2
M
Provide
proper access,
Ensure the
workers are
able to
understand the
local
language,
B
2
L
Project
Engineer, site
in charge.
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
9
Mixing of cement
mortar
Inhalation of dust
particles
Slip/trip
Fall from different
level
Caught in between
Damaged oil hose
Improper maintenance
of mixer machine
Noise
Vibration
Over loading of fine
and coarse aggregate in
mixer machine
Silicosis
Personnel injury
Failure of bearing
Failure of brake
system
Overturning of
mixer machine,
Finger injury,
Hearing loss due to
continuous
exposure to noise,
10
Erection of scaffolding
Fall from height
Falling object
In adequate experience
Damaged scaffolding
tubes,
In adequate base plate,
In appropriate bracing
to the scaffolding
Injury to the
personnel,
Scaffolding
collapse.
lighting is
available,
Check for
shoring
stability.
.
The machine
operator must
have experience
to operate the
machine,
Ensure the
mixer machine
is properly
maintained and
greasing applied
for bearing and
wheels,
No horse play ,
Use appropriate
PPE’s,
Materials
should be
transferred from
lower level to
higher level
through buckets,
Experienced
personnel
should erect the
scaffolding.
Ensure the
shoring is
properly
secured.
C
4
M
Ensure the
machine has
adequate
maintenance
record,
Do not
overload the
mixer
machine,
Restrict the
personnel
movement
near mixer
machine.
Site in charge,
Crew.
A
4
L
E
2
M
Scaffolding
tubes should
not have any
bends,
Scaffolding
erection
should be
monitored by
supervisor,
Plumb checks
Site in
chargescaffoldi
ng crew
A
3
L
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
11
Construction of
Retaining wall
Manual handling
Overload
Inhalation of fine
particles
Awkward body posture
Fall from height
Falling object
Ingestion of cement
dust
Slip/Trip
Poor communication
Lack of training and
experience
Injury to the
personnel,
Back ache,
Sprain,
MSD,
Silicosis,
Unable to
understand the
language.
Ensure
experienced
masons are
carrying out
activities,
Do not throw
materials from
different level,
Use PPE,
Ensure the
workers able to
understand
language.
E
2
M
to be done
during
erection of
scaffold,
Use Safety
harness to
avoid fall
from height.
Use manual
handling
techniques,
Use dust mask
to avoid
inhalation of
fine particles,
Use
Scaffolding
platform to
execute
structure,
Use safety
harness to
avoid fall
from height.
Crew, Site in
charge, Project
Engineer.
A
3
L
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
12
Curing of Retaining
wall
Slip / Trip
Fall from height
Wet soil
Name
: K.Basheerudeen
Date
: 25-09-2015
Signature :
Personnel injury.
Name
:
Date
:
Signature :
Use PPE
D
1
M
Adequate
PPE’s must be
available,
Ensure the
worker should
take extreme
care while
working on
wet soil,
Curing should
be done in
specific time.
Site in charge.
A
1
L
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
RISK ASSESSMENT MATRIX
RISK ASSESSMENT
MATRIX
HAZARD SEVERITY (CONSEQUENCE)
1 Minor
Minor Injury / Minimal pollution effect / No loss time / No
internal disruption / No downtime
2 Low
Injury which requires medical attention / 1-3 day loss time /
Minor pollution effect / Minor internal disruption / 1 Day
downtime
3 Medium
Potentially life threatening Injury causing temporary disability
(e.g. fractures) and/or requiring medivac / Potential long term
absence / Pollution with some onsite/offsite impact /
Disruption possibly requiring outside help to manage /
Downtime between 1 and 7 days
4 High
Major life threatening injury or causing permanent disability
(e.g loss of limb) / Incomplete recovery / Pollution with
significant impact / Very serious business disruption / Up to 4
weeks downtime
5 Major
Fatality or multiple fatalities, or multiple life threatening
injuries causing permanent disabilities / Massive pollution
with significant recovery work / catastrophic business impact
and national/global media interest / Over 1 month downtime
LIKELIHOOD (PROBABILITY)
A Unlikely
B Remote
C Possible
D Probable
E Very Likely
Could only occur under a
freak combination of
factors. AC (less frequent
than 10-5)
May occur only in
exceptional
circumstances. AC (10-5
to 10-4)
Could occur at some time.
AC (10-4 to 10-2)
Would
no
require
extraordinary factors to
occur at some time. AC
(10-2 to 10-1)
Almost
certain
to
happen if conditions
remain unchanged. AC
(10-1 to 1)
A1
B1
C1
D1
E1
A2
B2
C2
D2
E2
A3
B3
C3
D3
E3
A4
B4
C4
D4
E4
A5
B5
C5
D5
E5
RISK ASSEMENT FOR CONSTRUCTION OF RETATINING WALL AT YERCAUD COTTAGE
LOW (L)
Any task that has this risk ranking is generally acceptable. The work environment and methodology presents minimal risks to personnel (see A1,
B1, C1, A2, B2, A3, A4 on the above matrix)
MEDIUM (M)
Any task that has this risk ranking is only acceptable if the Risk is As Low As Reasonably Practicable (ALARP). ALARP assessments should be
completed by suitably qualified and experienced persons. Personnel completing tasks which are in this band should be fully aware of the risks
which exist and the control measures put in place to minimize them (see D1, E1, C2, D2, E2, B3, C3, B4, C4, A5, B5 on the above matrix).
HIGH (H)
Any task that has this risk ranking must not be completed. It should be refined or further control measures put in place to reduce risk (see D3, E3,
D4, E4, C5, D5, E5 on the above matrix).