Risk Assessment Form
#11 Activity-Based Risk Assessment for Drainage Improvement Project at TFS Building
Inventory of Work Activities
Company: PNH Resources LTD PTE
10 January 2011
No.
1
Process Description
Posting of safety signage
2
Demolition
3
Clean out new trench works of demotions debris
4
Deliver grating and supporting works to the job site
5
Installation of pre-fabricated.grates and support casting - welding
6
Site is prepared for pouring concrete into select areas of the drainage area.
7
Heat Exposure
Work Activities
This project is already partially controlled as it is inside of the boat access
area. Signage will be posted as well as special hazard signage listed below.
Demolition of be accomplished to widen drainage system and facilitate
installation of new drainage grates and supporting structures.
Remove debris left over from the demolition which resulted in widening of
the trench – materials will be cleaned out and disposed of. Trench is
approximately 1 foot wide and 8-10” deep.
Pre-fabricated support casting and drainage grates are manually carried to
the job site in preparation of their installation.
Installation of support structures and pre-fabricated grates – This installation
will involve some spot welding.
Small amount of concrete to be poured in support/completion of this
project. Forms to be built by our guys
This entire project will be conducted outdoors and workers will be exposed
to heat stress depending on the ambient weather.
Risk Assessment Form
Activity-Based Risk Assessment Form
Company:
PNH RESOURCES PTE LTD
Process/Location:
Improve drainage at the TFS Building, FDSWork Request #12232
Mr. Lee Wilson
Approved by:
Conducted by: (Names, designations)
(Date)
EM 385-1-1
Ministry of Manpower Requirements
Last Review
10 January 2011
Bradamente Amoroso (Martin)
Engineer
10 January 2011
Next
01 May 2011
(Name, designation)
Senior Safety Manager
(Date)
10 January 2011
1. Hazard Identification
Date:
2. Risk Evaluation
1a
1b
1c
1d
2a
No
Work Activity
Hazard
Existing Risk
Control
(if any)
1
Secure the
safety aspects
of the site. The
site is already
semi-controlled
as it is inside of
the TFS control
area although
access is not
strictly
controlled all of
the time.
2
Demolition of
existing floor in
support of new
installation of
pre-fabricated
drainage
equipment and
to facilitate
better drainage
Ensure that there
is adequate
signage to alert
traffic through the
area this is a
construction area
and trip hazards
may exist, some
sharp objects may
be present at
different stages
and some welding
will be done here.
Musculoskeletal
including strains,
sprains and back
injuries
Possible
Accident/
Ill Health &
Persons at Risk
Workers in the
area (1 – 3) from
PNH and ancillary
foot traffic from
people assigned
to this unit.
Sight Hazards
from flying debris
Personnel
actually
performing these
functions
Personnel
involved in the
demolition or
Review
Date:
3. Risk Control
2b
2c
2d
3a
3b
Severity
Liklihood
Risk
Level
Additional Risk Control
Action Officer
Designation
Control of the
construction work
zone and traffic
areas.
Minor
Remote
Low
Pre-construction and routine safety
briefs should alert workers of the
hazards associated with this project
and the need to protect personnel
routinely transiting through this work
zone.
Senior Safety
Manager
Training regarding
good lifting
techniques and
how to recognize
your own
limitations.
Minor
Remote
Low
Where possible utilize mechanical
means to move large material
Senior Safety
Manager
Team work if it
looks like two or
even three
workers would do
the job more
effectively and
safer than one,
then that is
probably true.
All PNH workers
have been
provided with
Studies have shown that the use of
back belts have little to no effect and
may even place workers at greater
risk as it gives them a false sense of
security.
Minor
Remote
Low
Stress good lifting techniques during
pre-construction briefs and tool box
talks prior to and during this project.
This training should include lifting
with the legs while keeping the back
straight and keeping the load as close
the body as possible.
Ensure that a sight conservation brief
is conducted for all workers involved
in this phase of the project prior to
Senior Safety
Manager
other ancillary
personnel in the
vicinity of this
work.
Personnel
involved in the
actual cleanup
sight protection.
All PNH workers
have been
provided with
sight protection.
Minor
Remote
Low
Training regarding
good lifting
techniques and
how to recognize
your own
limitations.
Minor
Remote
Low
3
Clean/remove
debris that
resulted from
the demolition
works.
Sight Hazards
from flying debris
4
Deliver new
fabricated
grating and
associated
support works
to the jobsite at
the front of the
TFS Building
Two workers are
involved in
physically carrying
individual pieces
from the staging
area at the muse
facility (where the
contractor
delivered these
pieces, the pieces
were actually
fabricated out in
town.
Two workers
who are carrying
these pieces
from the muse to
the front of the
TSF Building a
distance of
approximately
150 meters.
5
Installation of
the support
casting and
metal grates installation of
the support
casting will
involve some
spot welding
Welding fumes
Two workers in
the vicinity of
this phase of the
project with one
individual
primarily
assigned to do
the welding and
the other serves
as an observer
and fire watch
6
Concrete is to
be poured to fill
in the drainage
Exposure to
concrete - eye
Workers in the
vicinity of the
pouring of the
Team work if it
looks like two or
even three
workers would do
the job more
effectively and
safer than one,
then that is
probably true.
Hot work chit is in
force and is
updated as
required. Welding
is a spot type of
work and is
conducted
outdoors and is
not expected to
create any
occupational
hazards to
workers.
All PNH workers
have been
provided with
beginning work. Training should
include a review of the current
condition of worker eye protection
Ensure that a sight conservation brief
is conducted for all workers involved
in this phase of the project prior to
beginning work. Training should
include a review of the current
condition of worker eye protection
Where possible utilize mechanical
means to move large material
Senior Safety
Manager
Senior Safety
Manager
Studies have shown that the use of
back belts have little to no effect and
may even place workers at greater
risk as it gives them a false sense of
security.
Minor
Remote
Low
Minor
Remote
Low
Stress good lifting techniques during
pre-construction briefs and tool box
talks prior to and during this project.
This training should include lifting
with the legs while keeping the back
straight and keeping the load as close
the body as possible.
Ensure that welding equipment is
inspected prior to each use. Report
any material deficiencies to the Senior
Safety Manager Mr. Lee Wilson or to
Mr. Ghopal (acting Indian Safety
Representative while Mr. Kumar is on
leave).
Ensure that a sight conservation brief
is conducted for all workers involved
in this phase of the project prior to
Senior Safety
Manager
Senior Safety
Manager
system around
metal support
equipment and
serve as a
foundation for
drains.
5
Working
outdoors – Heat
Stress – This
entire project is
slated to be
performed
where workers
are exposed to
the ambient
work
environment
concrete
Exposure to
concrete - Skin
hazard – burns
from skin coming
in contact with
concrete
Heat Cramps
Heat Rash
Heat Syncope
Heat Exhaustion*
Heat Stroke**
Personnel
involved in the
receiving of the
fresh concrete
Personnel
performing lawn
care work
*If not treated
properly can
progress to heat
stroke.
**Life
Threatening and
is a real medical
emergency.
Definitive medical
assistance must
be summoned.
Heat Stress
(Color)
Green
Yellow
Red
Black
Condition
I
II
III
IV
Heat Stress WBGT
Temperature
82-84.9
85-87.9
88-89.9
Above 90
sight protection
and this sight
protection should
be used during this
phase of the
project.
All PNH concrete
workers are
provided with
protective rubber
boots, long sleeve
shirts and gloves.
Tool Box Talk
Training
concerning heat
stress, clean
drinking water at
all job sites,
sufficient rest
periods for
workers in
accordance with
NAVMED P-5010
and Ministry of
Manpower
Recommendations
beginning work. Training should
include a review of the current
condition of worker eye protection
Minor
Remote
Low
Pre-construction training should
include a reminder of the potential
hazards associated with dermal
exposure to concrete materials.
Senior Safety
Manager
Moderate
Remote
Low
Continue emphasis on heat injuries
whenever safety stand downs, events,
tool box talks etc.. are planned.
Ensure that drinking water is always
available for crews working in heat
stress conditions. Ensure that
workers have a good working
knowledge of the Heat Stress
Program employed at Sembawang
and what the color system indicates
as follows:
Safety
Manager
Activity Level
Discretion is required when planning heavy exercise for acclimatized personnel.
Strenuous exercise and activity for new and un-acclimatized personnel during the first 30 days of heat exposure.
Strenuous exercise should be curtailed for personnel with less than 12 weeks of training in hot weather.
Physical training and exercise should be curtailed for all personnel (operational commitments excluded).
Heat stroke likelihood is high under conditions of high exertion.
Calculations:
WBGT = WB X 0.7 + DB X 0.1 + GT X 0.2
Meter calibration should be manually verified every 3 months. Manual calculation must be 0.2 + the meter WBGT readout