The document provides a risk assessment for using aluminum mobile scaffolding. It identifies hazards associated with various tasks like material delivery, scaffold erection, use, and dismantling. Key risks include falls from heights, falling objects, manual handling injuries, and collapse due to incorrect design or assembly. Control measures require competent supervision, design by qualified personnel, inspection protocols, PPE use as needed, and procedures to address weather hazards. Residual risks are low when all controls are properly implemented and monitored.

1. HEALTH SAFETY AND ENVIRONMENT Author: Approved:
RISK ASSESSMENT: ACT/HSE/RA 001 USE OF ALUMINIUM MOBILE SCAFFOLDING
Issued: Rev. Date:
Revision: 0
Page 1 of 3 HSEQ -Rev-01(Aug-2018)
No
Specific Task Step
(In sequence of
works)
Hazard Details Consequence/Risk
Initial Risk Rating
Control Measures Residual Risks
Additional Control
Measures
RR
P S RR
1
Access to work areas
by personnel
Aluminum Tower
Scaffold Material
delivery to work area;
 Vehicles and
workers in same
working area;
 Storage of
materials for
scaffold;
 Use of plant –
forklift etc.;
 Collision with plantor
vehicles and live traffic;
 Poor or unsafe storage,
collapse;
 Untrained operators;
4 4
16
HIGH
i. Worker pedestrian routes to be designed and implemented with clear signage;
ii. Instruction to workers at induction on use of access routes around the project;
iii. Flagmen to be used to control personnel (onlyon roads below 80kph);
iv. Scaffold materials stored correctly,no more than 2 pallets high and banded together
when transporting;
v. In traffic enclosed areas suitable welfare and firstaid facilities shall be implemented to
minimize worker movements;
vi. The Logistics plan shall clearlyillustrate access and egress points;
Workers not
complying with
controls
All supervision to
monitor operation;
Regular topic in TBT’s
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2
Tower Scaffold design,
components and
erection standards
(Classified as
TemporaryStructure)
 Trained
personnel
required;
 Scaffold specific
design;
 Use of unsupervised or
untrained personnel to erect
scaffold;
 Worker competency;
 Incorrect Design and
Erection of scaffold resulting
in collapse;
 Incompatible components
used;
 Unapproved amendments to
design;
4 4
16
HIGH
i. The design and erection of aluminium tower scaffolds (temporarystructures) shall be
undertaken by competent TemporaryWorks Supervisor who shall confirm itis in
accordance with the TW designer’s requirements;
ii. Scaffold supervision shall be suitablytrained and experienced to supervise the erection
and dismantling of aluminium tower scaffolds;
iii. TemporaryWorks Coordinator shall be responsible for the collation ofscaffold erection
permits and collation ofrecords of inspections etc.;
iv. A copy of the tower manufacturer’s instructions shall be available and strictlyadhered
to;
v. All components mustbe free from repairs,defects,dents,bends,distortion or corrosion
that could prevent safe use;
vi. Components from different tower manufacturers shall notbe mixed in the same tower;
vii. Platform boards mustbe free from holes,delamination or other damage;
viii. Scaffold design drawings shall be available for review by concerned parties;
Low
Project Name: xxx
RA Ref No.: xxx
RA compilation
Date:
Review date:
Date:
Compiled by:
Reviewed by:
Approved by:
Overall Task Details
Lightweightaluminum tower scaffold for work access.Classed as Temporary
Works
Relevant Applicable MAS:
 00245 – Mobile scaffold towers
 00236 - Housekeeping
Additional Training required:
TemporaryWorks Coordinator to be designated
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 w ork place?
Catastrophic (5)
Multiple Fatalities
High 25 High 20 High 15 Medium 10 Medium 5
Can the product or process be substitutedfor
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 aw ay w ith
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 w orn 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 USE OF ALUMINIUM MOBILE SCAFFOLDING
Issued: Rev. Date:
Revision: 0
Page 2 of 3 HSEQ -Rev-01(Aug-2018)
No
Specific Task Step
(In sequence of
works)
Hazard Details Consequence/Risk
Initial Risk Rating
Control Measures Residual Risks
Additional Control
Measures
RR
P S RR
3
Aluminium Tower
Scaffold erection and
use
(Classified as
TemporaryStructure)
 Works at Height;
 Manual Handling;
;
 Injury from Fall from
Heights;
 Injury from falling objects;
 Manual Handling injuries;
 Erection of Scaffold;
 Tower toppling over in use;
 Incorrect or unsuitable use
of harnesses;
 Use of unsuitable harness
points,as applicable;
 Incorrect height/base ratios
used resulting in collapse;
 Scaffold struck by
vehicles/plant;
4 4
16
High
i. The ratio of the minimum base dimension to the heightof the working platform shall not
exceed 1:3 for in external use,and 1:3.5 in internal use,unless the tower is suitably
secured to another permanentstructure;
ii. Base/Heightratios can be increased bythe use of fully extended and locked outriggers
on both sides ofthe platform that have been inspected bythe competentperson;
iii. Scaffold towers shall be sited on graded,compacted,level ground erected to standards;
iv. Wheels or castors shall be notless than 125mm in diameter and shall be locked into
the base of standards and fitted with brakes which cannotbe accidentallyreleased;
Wheels shall never be supported on blocks etc. to gain additional heightor on steep
inclines.
v. The adjustable legs shall onlybe used for leveling the scaffold and not for gaining extra
height;
vi. Scaffold to be inspected dailybefore work by designated work supervisor and the work
crew. Scafftag mustbe presentand specific to scaffold.Any incomplete tower mustbe
re-tagged and the ladder either removed or physically blocked to prevent unauthorized
use.Tower scaffolds shall notbe left incomplete and shall be either completed or
dismantled;
vii. Scaffolds mustbe protected by suitable barriers ifsited adjacentto vehicle or plant
routes;
viii. When a tower is moved to a new location and guardrails,outriggers,wheel extensions,
or other components have been removed and / or replaced during the move then it
mustbe re-inspected.If the scaffold is simplymoved ‘as is’ to a new location it does not
need to be re-inspected;
ix. No worker shall remain on the tower scaffold when it is being moved,regardless of
height,location or the distance moved;
x. Workers shall never climb the outside ofthe tower to gain access.Ladder sections,
integral with frame members shall be climbed from the inside only.Access mustnever
be by means ofa ladder leaning againstthe outside ofthe tower;
xi. Workers shall ensure trapdoors remain closed while using the platform;
xii. It is recommended to not use a safety harness and lanyard when working on
lightweight aluminum mobile towers,(in line with PASMA and the HSE UK
recommendations).However,it is mandatory that guardrails have been correctly
installed,as then the tower has collective fall protection so personal fall protection is not
necessary.It is a safe working platform;
xiii. The above mustbe considered regarding the work task and location such as adjacent
to voids, leading edges,openings etc.,the tower height, the availabilityof secure
harness points,(cable trays, ducting, pipework, false ceiling supports etc.are not
suitable harness points),emergencyrescue, etc. as in the event of an arrested fall on a
lightweight aluminum mobile tower,there is a likelihood for the tower to overturn,
increasing the risk ofinjury to the worker and also to others in the vicinity. This
consideration should be detailed in the Risk Assessmentand site HSE Plans;
xiv. If deemed after assessmentthat a harness is to be required for a specific task,no
shock lanyard is to be used below 6m working height;
xv. All hand tools to be tied off when working at height;
xvi. Written report weekly on scaffold by TWS, documentfiled;
xvii. Scaffold shall be re-inspected after damage or incidentlikelyto affect structural stability
such as exposure to high winds,heavy rain or electrical storm;
xviii. No alterations to any scaffold tower by untrained persons;
xix. No overloading of tower scaffold,TWC shall follow design SWL when distributing
materials;
Incidentdue to
protection barrier
removal
No removal of
protection barriers
withoutprior approval
from management.
Low

3. HEALTH SAFETY AND ENVIRONMENT Author: Approved:
RISK ASSESSMENT: ACT/HSE/RA 001 USE OF ALUMINIUM MOBILE SCAFFOLDING
Issued: Rev. Date:
Revision: 0
Page 3 of 3 HSEQ -Rev-01(Aug-2018)
No
Specific Task Step
(In sequence of
works)
Hazard Details Consequence/Risk
Initial Risk Rating
Control Measures Residual Risks
Additional Control
Measures
RR
P S RR
4
Dismantling of tower
scaffold
 Works at Height;
 Manual Handling;
 Worker
competency;
 Injury from Fall from
Heights;
 Injury from falling objects;
 Manual Handling injuries;
 Use of untrained personnel
to dismantle scaffold;
4 4
16
High
i. A dismantling Method Statementshall be produced and approved before dismantling is
undertaken,to ensure safe removal;
ii. The scaffold shall be systematicallyremoved as per approved Method Statement based
on manufacturers recommendations and undertaken bycompetentpersons;
iii. No deviation from the Method Statementwill be undertaken withoutprior Temporary
Works Coordinator approval;
Workers not
adhering to
procedure;
Supervision to
constantlymonitor
workers; Low
5
Maintenance of Tower
Scaffold
 Adverse weather;
 Scaffold erected
for long periods;
 Collapse of scaffold due to
alterations;
 Damage to scaffold due to
incidentor adverse
weather;
 Incidentdue to removal of
protection barriers.
 Unapproved amendments
to design;
3 3
9
Med
i. Tower Scaffold shall be checked after heavy rains,severe winds etc.;
ii. Weekly recorded inspections undertaken;
iii. Implemented warning signage maintained;
iv. Housekeeping inside scaffold to be maintained,all rubbish and waste material to be
removed daily;
v. All scaffold amendments shall onlybe authorized by TemporaryWorks Coordinator;
Scaffold damaged
by weather or
collision
Quarantine area until
design checks
undertaken and
reviewed by TWC
Low
6
Worker exposure to
direct sun whist
working on scaffold
(as applicable)
 Workers exposed
to high summer
temperatures;
Worker ill health due to:
 Heat exhaustion,
 Heat stroke;
 Heat Stress.
3 4
12
High
i. Summer Hour Working plan to be designed and implemented;
ii. Municipality summer working hours observed and implemented (12.30pm to 3.00pm
restricted in direct sunlight);
iii. Workers instructed regarding working in the heat and signs ofheatexhaustion etc. at
Induction;
iv. Recovery cool rooms established on site;
v. Cool welfare areas established in all locations;
vi. Cool fresh water and electrolyte supplements to be maintained in all areas;
New workers
boughtonto site
Regular topic in Toolbox
Talks
Low