The document provides a risk assessment for demolition of an existing concrete structure. It identifies hazards associated with the work, assesses the initial risk rating, and lists control measures to reduce the residual risks. Key steps of the work include plant checks, demolition of the structure using an excavator, supervision of demolition, breaking works manually using air hammers, and removal of waste. Hazards include plant/pedestrian interactions, unauthorized plant use, noise, exposed rebar, and contamination. Control measures require certification of plant and operators, designated traffic routes, flagmen, inspections, signage, and personal protective equipment.

1. HEALTH SAFETY AND ENVIRONMENT Author: Approved:
RISK ASSESSMENT: ACT/HSE/RA 001 DEMOLITION OF EXISTING CONCRETE STRUCTURES
Issued: Rev. Date:
Revision: 0
Page 1 of 2 HSEQ -Rev-01(Jan-2023)
No
Specific Task Step
(In sequence of
works)
Hazard Details Consequence/Risk
Initial Risk
Rating Control Measures Residual Risks
Additional Control
Measures
RR
L C RR
1
Plant checks on arrival
to site
PRIOR TO SITE
ACCESS
 Use of heavy plant
for demolition;
 Unauthorized operation of the plant
resulting in incident;
 Failure due to use of un-certificated
plant;
3 4
12
HIGH
i. All plant to be Third Party Certificated by a DM approved inspector,
documentation available on arrival to site;
ii. Operators to have in-date Third Party certificate by approved body,
available for review on arrival to site;
iii. Visual inspection of plant undertaken by competent person;
Documentation
unavailable for
review
Plant quarantined until
evidence provided
Low
2
Demolition of concrete
structure
 Excavator breaker
operation
 (Operator)Plant /
pedestrian interaction;
 Operator visibility;
 Incident due to use of defective plant
or associated equipment;
 Plant reversing – risk of serious
injury to pedestrians;
 Unauthorized use of plant by
untrained personnel;
 Collision with plant and live traffic
within site boundary;
 Workers struck by working plant,
very high risk of fatality;
 Noise;
 Exposed rebar – risk of injury;
 Possible contamination of asbestos
in structure;
 Proximity to public areas;
4 4
16
HIGH
i. Demolition Method statement to be submitted and adhered to. Demolition
to be undertaken in a sequential, controlled way;
ii. Structure prior to works, reviewed for any signs of asbestos in building, if
found present, to be removed by licenced contractor;
iii. All operators to follow designated traffic routes; Worker pedestrian routes
to be designed and implemented with clear signage to provide
segregation to demolition area;
iv. Flagmen to be used to control Plant and truck movements. Where
practicable areas to be designated no pedestrians, with flagmen stationed
clear of plant movements in clear view;
v. The Logistics plan shall clearly illustrate plant access and egress points;
vi. No reversing of any plant or truck at any time without banksman;
vii. Keys removed from plant or trucks when parked, brake on. Plant never
left running unattended;
viii. Daily inspections of excavator hoses, tyres, connections etc. prior to use.
Damaged equipment immediately removed from service;
ix. Plant operators wear seat belts at all times;
x. Flashing light fitted to cab and used at all times, reversing horn fitted and
working; No shades to be fitted to excavator glass to hinder operator
vision;
xi. Noise restrictions imposed by municipality in rural areas to be adhered to
as per NOC; Workers in area to wear ear protection;
xii. Dust suppression to be applied if required under NOC;
xiii. Area to be screened off if close to public routes to prevent any flying
debris entering area. Suitable warning signage implemented with spotters
to warn as required;
xiv. Concrete / rebar / plastic / wood segregated into separate waste areas;
Workers not
complying with
flagmen
Machine
breakdown
Hydraulic fluid spill
Regular topic in TBT’s
Machine isolated and
quarantined until repaired.
Spoil removed and treated as
hazardous waste
Low
Project Name: xxx
RA Ref No.: xxx
RA compilation
Date:
Review date:
Date:
Compiled by:
Reviewed by:
Approved by:
Overall Task Details
Use of mechanical breakers – excavator – for demolition of concrete structure
Relevant Applicable MAS:
 00940 – Plant Operators;
Additional Training required: NOC’s Required for task:
RISK SCORE CALCULATOR
Use the Risk Score Calculator to Determine the Level of Risk of each Hazard
What would be the
CONSEQUENCE
of an occurrence be?
What is the LIKELIHOOD of an occurrence? Hierarchy of Controls
Frequent/Almost certain (5)
Continuous or will happen
frequently
Often (4)
6 to 12 times a year
Likely (3)
1 to 5 times a year
Possible (2)
Once every 5 years
Rarely (1)
Less than once every 5
years
Can the hazard be Eliminated or removed
from the work place?
Catastrophic (5)
Multiple Fatalities
High 25 High 20 High 15 Medium 10 Medium 5
Can the product or process be substituted for
a less hazardous alternative?
Serious (4)
Class 1 single fatality
High 20 High 16 High 12 Medium 8 Low 4
Can the hazard be engineered away with
guards or barriers?
Moderate (3)
Class2 (AWI or LTI) or Class 1
Permanently disabling effects
High 15 High 12 Medium 9 Medium 6 Low 3
Can Administration Controls be adopted
I.e. procedures, job rotation etc.
Minor (2)
Medical attention needed, no work
restrictions. MTI
Medium10 Medium 8 Medium 6 Low 4 Low 2 Can Personal Protective Equipment &
Clothing be worn to safe guard against
hazards?
Insignificant (1)
FAI
Medium10 Medium 4 Low 3 Low 2 Low 1

2. HEALTH SAFETY AND ENVIRONMENT Author: Approved:
RISK ASSESSMENT: ACT/HSE/RA 001 DEMOLITION OF EXISTING CONCRETE STRUCTURES
Issued: Rev. Date:
Revision: 0
Page 2 of 2 HSEQ -Rev-01(Jan-2023)
No
Specific Task Step
(In sequence of
works)
Hazard Details Consequence/Risk
Initial Risk
Rating Control Measures Residual Risks
Additional Control
Measures
RR
L C RR
3
Demolition
(supervision)
 Plant operations
around workers;
 Workers in plant
operating radius;
 Worker struck by vehicle;
 Plant operator unable to see task –
screen covered;
 Reversing vehicles uncontrolled;
3 4
12
HIGH
i. Plant Supervision to undertake visual inspection of all plant and
equipment daily;
ii. Flagmen controlling plant movements, standing in safe area in view of
operator;
iii. Spotters to direct plant operators at high level in clear view at all times;
iv. Supervision to control workers in working area of plant;
v. All workers not associated with task removed from the area;
vi. Ensure staff wear hearing protection.
Incident
Work stopped, area cleared
and full investigation
undertaken
Low
4
Undertaking breaking
Works – Manual
operation using
compressed air jack
hammers;
 Use of hand held
breakers;
 Use of un-certificated equipment
resulting in failure/injury;
 Use of un-certificated operators
resulting in incorrect operation and
injury;
 Vibration or noise injury through
prolonged use;
 High pressure compressed air;
 Environmental issues;
 Refilling of equipment;
 Storage of flammable substances;
 Use of generators;
3 3
9
MED
i. All work by competent persons to ATC Minimum Acceptable Standard;
ii. Worker ‘trigger time’ shall be controlled and workers rotated to avoid
vibration injury through prolonged use;
iii. Workers briefed and TBT given on VWF, and warned of signs of
potential injury;
iv. Ear protection to be worn by operators and those in areas, also dust
masks;
v. Compressed air line to be inspected daily to ensure sound, with anti-
snake wires used. Damaged lines removed from service;
vi. Dust levels will be monitored, especially areas such as close to Roads
where dust could cause a risk to drivers;
vii. All spoil to be temporarily removed to designated area until removal if
required;
viii. Signage and adequate night time lighting to be installed;
ix. All maintenance of equipment in-situ shall have a non-porous
groundsheet under to catch spills and leaks. This has be disposed of as
hazardous waste;
x. Only correct repairs will be undertaken, to manufacturers standards;
xi. All refuelling of plant shall be from designated vehicles in designated
areas;
xii. Fire extinguishers shall be available in immediate area;
Machine
breakdown
Oil spill
Machine isolated and
quarantined until repaired.
Spoil removed and treated as
hazardous waste
Low
5
Removal of waste
concrete and rebar
 Truck operations
around workers;
 Worker struck by vehicle;
 Truck operator unable to see task –
screen covered;
 Loading of trucks;
 Reversing vehicles uncontrolled;
3 4
12
HIGH
i. Flagmen controlling plant movements and reversing, standing in safe
area in view of operator;
ii. Truck operators to remain in cab, full PPE required when sheeting load
etc.;
iii. Area cleared of workers when loading trucks, monitored bt flagmen;
iv. Designated access routes to be adhered to;
v. Trucks to be covered to prevent spoil spillage onto live roads;
vi. Speed limits on site to be adhered to at all times;
Low