Risk Assessment and Method Statement for Installation of Boardwalk in Dublin City Center

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Construction Safety DT117/4

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Risk Assessment and Method Statement for Installation of Boardwalk in Dublin City Center

  1. 1. 1DEPARTMENT OF CONSTRUCTIONMANAGEMENT & TECHNOLOGYPROJECT COVER SHEETSTUDENT NAME:STUDENT ID NO:STUDENT EMAIL ADDRESS:COURSE/YEAR:SUBJECT:PROJECT TITLE:LECTURER:FOR OFFICE USE ONLY:DATE DUE:DATE RECEIVED:RECEIVED BY:REPEAT PROJECT?MARKS: 72%
  2. 2. 2RISK ASSESSMENT AND METHOD STATEMENT FOR THEINSTALLATION OF STEEL BOARWALK ALONG LIFFEY RIVER INDUBLINTable of ContentsIntroduction................................................................................................................................3Task Description........................................................................................................................3Scope of works...........................................................................................................................3Materials and equipment required .............................................................................................4Risks involved in performing the task .......................................................................................5Control measures .......................................................................................................................7Workforce required....................................................................................................................8People responsible for overseeing and signing of the task ........................................................8Introduction to Risk Assessment ...............................................................................................8Introduction to Method Statement ...........................................................................................20Conclusion ...............................................................................................................................24References................................................................................................................................25
  3. 3. 3IntroductionThe aim of this report is to evaluatemajor works that are involved in installation of the steelboardwalk along the Liffey River and consequently to investigate what hazards and risks areassociated with them. The process will include identifying the people who are exposed to thedanger, proposing control procedures that would prevent the accidents happening anddesignating persons responsible for the implementation. In addition, the sequence of workand resources needed to carry out the task are going to be described. Consequently, theinformation gathered from the analysis of the above aspects will be combined in the RiskAssessment and the Method Statement that will terminate the assignment.Task DescriptionThe duty of the contractor is to carry out the installation works of the steel boardwalk alongthe Liffey River in Dublin. The construction site is located in thecentral area of very busy citywhat can cause serious disturbance to works. It is limited to the footpath and one line of theEden Quay road. The remaining lines of the road cannot be closed due to high trafficflow.The site must be fenced off and the temporary traffic diversion signage must be erected.Scope of worksThe boardwalk steelstructure will be bolted in tothe existing concrete surface at the edge ofthe river. Before erecting the actual steel frame, the fixing anchors must be first put in place.In order to do so, some of the concrete barrier wall will requiredemolitionforallowingoperators to fix the anchors and bolt in the panels.After completing this task,the process offixing sections of the steel jetties canbegin. The jettiesare manufacturedon-site from thedelivered steel members. Each section of the board walk will then be lifted by crane andtransported to thedesired position where workers can securely bolt them in to the ground. Theprocess will repeat for each section of the boardwalk.Figure 1 - Site Plan
  4. 4. 4Materials and equipment requiredIn order to complete the task of the steel boardwalk installation the following materials andequipment will be required:Steel members- these will be used as a material for assembling sections of theboardwalk as per drawing demonstrated bellow. It is important to point out thatthecutting and welding will be carried out on site.Figure 2 - Site ViewFigure 3 - Boardwalk section
  5. 5. 5Mobile welding unit- is essential for the process of manufacturing the boardwalk onsite. The equipment complies of two bottles installed on the trolley; one containsoxygen and another fuel gas (acetylene). Both gasses are delivered by hose to theigniter (WWS, 2012)Generator- A single phase portable diesel generator is essential for power toolsoperations such as demolition, assembling the boardwalk sections and installation ofthe anchors. (EGD, 2012)Grinders- Heavy duty angle grinders require single phase power supply. The modelused on site is suitable for cutting and grinding steel.In addition, the abrasive wheelsespecially designed for these operations must be provided. (Direct Industry,2012)Drills and hammer jack- heavy duty drills are required for installation of the fixinganchors and demolition operations. The power will be supplied by the single phase3kW generator.Slings- are to be provided by the crane subcontractor. The inspections for wear andtear prior the work commencement will be an essential part of the risk controlprocess.Fixing Anchors- Heavy duty, selected by the structural engineer anchors to beprovided.XCMG 80 ton Crawler Crane- On this particularproject where the construction space is limited and thesite is spread over a long distance, it will be reasonableto use mobile crane. The XCMG80 model featuresoperations such as traveling with load and 360 slewing.The length of main boom is 13-58 m and the length offixed jib is 9-18. This type of crane offersmuch moremobility than the wheeled cranes. In addition,it does notrequire stabilizers to set-up what limits the neededspace and time in comparison to wheeled mobile crane.The unavoidable condition that contractor is obligatedto provide for safe lifting operations is stabilized andwell compacted ground. This is already in place in formof asphaltic road surface. (XCMG, 2012)Foam Life Jackets, Harnesses and Inertia Reel–are to be provided to allworkersperforming tasks at the edge of the river bank. As in regard to the inertia reel,the double anchorage will be used with the purpose of enhancing the security ofworkers.(SGS, 2012)Figure 4–XCMG80
  6. 6. 6Risks involved in performing the taskAccording to Cooke and Williams (2009, p.125), the „health and safety risk arises from theimpact of hazards. Where there is no hazard there is no risk, but in construction there arehazards everywhere on site‟The main hazards and risks assigned to this project areillustrated in the table below.Moreover, the Figure 5 will describe method of classifying the most dangerous risks, wherethe level of likelihood and severity of accidents is rankedhighlighting the areas that requireadditional control.The ratings of hazards will later be included in the method statement andrisk assessment. All of these actions will allow for deciding who is exposed to the danger.Subsequently the foundations for outlining the precautions and control methodswill beprovided. Also, the contractor will have to appoint the person responsible for implementationof the findings on site.The Major risks identified on the steel boardwalk installation are:Hazard RisksUse of power tools Faulty toolsElectrocutionInjuriesWelding BurnsRadiationExplosionWorking at theedge of the riverSlipsFallsDrowningInjuriesHypothermiaCrane set up Crane collapseDeathsLifting materials Falling materialsDeathsInjuriesManual handling Back injuriesSlipsWorking in the citycentrePublic entering the siteRoad accidents due to traffic diversionFigure 5 - Hazard Rating Table
  7. 7. 7Control measuresOne of the major risks identified on this project is falling from the edge of the river bank.Therefore, contractor has decided to use inertia reel system to eliminate the risk. It isimportant to mention the pendulum effect that results from inappropriateuse of the system.The nature of Pendulum effect is presented by the figure below. To avoid the danger offalling employee hitting the ground or falling into the cold river, the secondary anchoragewill be used.In addition to inertia reel system for works at the edge of the river bank, the permit to workwill be implemented. This is a specialized system for ensuring that potentially very dangerouswork is done safely and the method statement is properly and formally implemented. Itsfundamental principle is that certain defined operations are prohibited without specificpermission of responsible foreman. The permition being only granted once stringent checkshave been made to ensure that the necessary precautions have been taken and that it is safefor work to go ahead. (Hughes and Ferret, 2005)Another major risk is lifting steel the steel panels. The 80 tonnes crane will be hired.Therefore the responsibility for safeguarding work involving carnage lies partially with sub-contractor. However some control procedures must be identified. Prior to start any liftingworks, the certification of the subcontractors‟ plant and crane operators‟ ticket must beinspected.Also, the slings must be checked by competent person for signs of wear and tear.Under no circumstances lifting operation should take a place in adverseweather conditions orby operator under influence of alcohol or drugs. If no other problems were identifiedtheworks can proceed. Handling the lifted materials is only to be performed with use of tie-inlines operated by experienced employees with permit to work at the edge of the river.Figure 6 - Inertia reel; Pendulum effect
  8. 8. 8Workforce requiredTo perform the task the following staff will be required:Competent foremanQualified welder4 general operatives (2 with experienced in lifting materials)Experienced banksmenCrane operatorPeople responsible for overseeing and signing of the taskThe person in duty of controlling safety plan on site isforeman and employees carrying outthe operations themselves. However responsibility for overseen and planning the safetycontrols on site is a responsibility of the contractor.Introduction to Risk AssessmentThe main objectives of this risk assessment are to determine the measures required by thecontractor installing the boardwalk to comply with health and safety legislation, and thereby,reduce the level of occupational injuries and ill-health. (Hughes and Ferrett, 2005)The riskassessment will cover all those who may be at risk, such as employees, subcontractors ormembers of the public. The document will be compiled in accordance to The ConstructionSafety Handbook published in Ireland(Curley, 2006).
  9. 9. 9GENERAL HEALTH AND SAFETY RISK ASSESSMENT NO. DT117/4Company: Steel Manufacturing Company Assessment undertaken by: JacekGuzowskiCompany address: Bolton street, Dublin 1Area/Department/activity: Steel Boardwalk construction, Liffey River, Dublin 1Signed: Date:Page___of ___Assessment review date:List of hazards andrisksRisk rating(severity)(likelihood)List ofpeople whoareespecially atrisk fromsignificanthazardsRequired controls Responsible personRatingafterassessmentHazard: GeneratorRisk: Electrocution,Explosion, Death(M)(M)MEmployeesForemanInduct all employeesand give toolbox talks.Adhere strictly tomanufacturesinstructions.Only competent personto supervise operations.Store diesel properly.Do not overloadForeman L
  10. 10. 10generator.Do not use indoor.Limit the access togenerator to competentperson only.Hazard: UsingAbrasive WheelGrindersRisk: Flyingfragments/ moultedsparks, burns,lacerations/amputations,eye injuries(M)(M)MEmployees Induct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Operate all tools as permanufacturer‟sinstructions.Ensure that all guardsare in position andserviceable before use.Ensure that correctwheel is selected for thetask.Only competent personto replace grindingstone.Always use grinders atcorrect angle.Never use defectivetools and always reportdefects to foreman.Always wear therequired PPE foreyes/ears/hands.Foreman Employees L
  11. 11. 11Hazard: Faultyelectrical equipmentRisk: Electrocution,Injury(L)(H)MEmployeesForemanInduct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Allow only trainedoperatives to operatedrills.Before operating readmanufacturers manual.Operate the drill at slowspeed.Never use defectivetools and always reportdefects to foreman.Always wear therequired PPE.Foreman Employees MHazard: WeldingRisk:Burns, Eyedamages from metalfragments(H)(M)HEmployeesForemanPublicInduct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Use a “Permit to Work”system for all welding.Ensure all oxyacetyleneequipment has aflashback flame arrestorand non-return valve.Inspect weldingequipment regularly forsigns of wear.WelderForemanM
  12. 12. 12Always turn gas supplyoff at the cylinder whenthe job is finished.Secure all acetylenecylinders in the uprightposition and protectfrom damage in trolley.Change cylinders awayfrom source of ignition.Gas bottles to besecurely stored.Gloves and eyeprotection to be wornwhen performing work.Hazard: Manualhandling of steelmembersRisk: Back injury, Slips(M)(L)LEmployees Induct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Only employees trainedin manual handling tocarry materials.Only two-persons liftingsystem is allowed.Keep the area clearfrom obstructions andsubstances thatcontribute to slip.Employees Foreman L
  13. 13. 13Hazard: Demolition ofthe existing wall.Risk: Fall from height,drowning(H)(H)HEmployees Induct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Wear suitable PPE,including harnesses.All workers to be tied inby inertia reel andwearing life jacketswhile working at theedge.“Permit to work”system to be in place.Ensure that demolitionoperation is undercontrol of a competentperson.EmployeesForeman MHazard: Working atthe edge of river bank.Risk: Falls, resulting ininjuries.(H)(H)HEmployeesForemanInduct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Permit to work systemto be used to all worksat the edge of the riverbank.All employees to wearharnesses.Ensure that workers areinstructed in the use ofEmployeesForeman M
  14. 14. 14the harnesses, rescueequipment and in theinspection maintenanceand storage of PPE.Ensure that fallprotection equipment isselected by a competentperson.Ensure that suitablerescue procedure isplanned beforeharnesses are used.Never allow workers towork alone using fallprotection equipment.Inertia reels to be set atthe length that preventscontact with water incase of fall.Ensure that trainedrescuers are availablewhen performing work.Hazard: Falling to theriverRisk: Drowning,Hypothermia(H)(M)HEmployeesForemanInduct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Permit to work systemto be used to all worksat the edge of the riverbank.All employees workingEmployeesForeman M
  15. 15. 15at the edge to wearharnesses.All employees workingat the edge to wear lifejackets.Ensure that workers areinstructed in the use ofthe harnesses, lifejackets and rescueequipment and in theinspection maintenanceand storage of PPEEnsure that fallprotection equipment isselected by a competentperson.Ensure that suitablerescue procedure isplanned beforeharnesses and lifejackets are used.Never allow workers towork alone using fallprotection equipment.Inertia reels to be set atthe length that preventscontact with water incase of fall.Ensure that trainedrescuers are availablewhen performing work.Ensure that a throw-line
  16. 16. 16and ladder are availablewhere work isperformed.Hazard: CraneSetupRisk: Cranecollapse, deaths(H)(M)HEmployeesForemanCraneoperatorPublicBefore setting upinspect the ground areato ensure it is capable oftaking the weight ofplant and applied load.Inspect for overheadcables.Ensure that operator isCSCS certified.Ensure that competentperson checks crane‟snecessarydocumentation.Ensure that all safetydocumentation iscompleted andinspected before setupstarts.Ensure that the area isfenced off.Do not use crane inadverse weatherconditions.Use crane as permanufacturer‟sinstruction.Foreman Crane operator M
  17. 17. 17Hazard: Lifting steelstructureRisk:falling materials,incorrect signage,crushing, death(H)(M)HEmployeesForemanCraneoperatorInduct all employeesand give toolbox talks.Only operators withvalid Safe Pass to carryout works.Responsibility forsafeguarding workinvolving carnage liespartially with sub-contractor.Before any lifting startsinspect the ground areato ensure it is capable oftaking the weight ofplant and applied load.Do not lift materials inadverse weatherconditions.Ensure that all safetydocumentation iscompleted andinspected before workstarts.Do not start liftingoperations before aMethod Statement hasbeen prepared andapproved.Ensure that a safesystem is in place forlifting operations.Ensure that all loads areCranesubcontractorForemanEmployeesL
  18. 18. 18secured and stablebefore lifting.Carry out operations asin the operator‟smanual.Only certified slingersto guide liftingoperations.All lifting equipment tobe CE-marked andinspected by competentpersonReplace worn slings.Mark and remove off-site damages slings.Allow only trainedperson over 18 to act asa banksmen.Wear required PPEManipulating of liftedmaterials is to be doneby tie-lines only.No workers allowedstanding under liftedobjects and to be liftedtogether with thematerials.Hazard: Pedestriansaccess to premisesRisk: Crushing,Injuries, Fall from(H)(M)HPedestrians Ensure that access toconstruction site is toauthorised persons onlywith Safe Pass.Contractor L
  19. 19. 19height, Death Use responsible personto control the access.Ensure that constructionsite is suitably fencedoff with hoarding toseparate all constructionactivates from membersof the public.Make safetyarrangements to ensurethat normal pedestrianand public vehiculartraffic is not put atundue risk as a result ofconstruction.Erect suitable warningsigns to forewarn of theknown dangers at theentry gates toconstruction site.Fence off the edge ofthe river bank anytimewhen works are nottaking place.
  20. 20. 20Introduction to the Method StatementThe safety method statement is a formal written document, not required by law, detailing howan activities or tasks are to be undertaken. It pays particular attention to the health, safety andwelfare implications in carrying out such task. The main purpose of method statement is toprovide practical and effective management tool for higher risk activities(Curley, 2006).There is wide range of the method statement templatesavailable from various sources.Nevertheless, the one used for this project was obtained from the Construction IndustryFederation website.
  21. 21. 21METHOD STATEMENTSite:Liffey river, Dublin 1 Date: 26.11.12 Assessed By: J. GuzowskiActivity covered by this assessment: Installation of boardwalk along the Liffey River in Dublin 1Number of people involved: 7Hazard Identification Assessment ofhazard (severity)H/M/LAssessment ofrisk (like hood)H/M/LRiskassessmentH/M/LUse of power tools M M MUse of faulty power tools L H MAbrasive wheels M M MUse of Generator H L MWelding H M HWorking at the edge of the river H H HFalling to the river H M HCrane set up H M HLifting materials H M HManual handling M L LPublic on site H M HRisk Control MeasuresReference documentation and/or standards required:H&S PlanSafety, Health & Welfare at Work 2005Construction Regulations 2006General Application Regulations 2007More detailed risk assessment can be view in Site Safety StatementAll due care has been put in place using all protective measures, having identified the hazards andassessed the risk to safety and health likely to result in accidents or injury to health at the place ofwork concerned and where putting in place of any further measures is grossly disproportionate havingregard to the unusual, unforeseeable and exceptional nature of work.Personnel Required to Safely Complete Activity:Crane operator, slinger, banksmen, welder, foreman, general operatorsSupervision Required:The contractor is responsible for ensuring that sufficient resources are allocatedto allow the safety completion of the operation in accordance with this MethodStatement.Tel: 01403459Foreman- is responsible for the implementation of this method statement on theconstruction site.Tel: 085555555Materials and Equipment Required:80 tonne crawler crane25kW generatorMobile welding unitDrillGrinderHammer JacksSlingsFixing AnchorsSteel
  22. 22. 22Safety Training/ Competency:All construction personnel shall have valid SAFE PASS cards.All workers to be inducted prior the works and the toolbox talks to be held at regular basis.All personnel involved in these operations will be trained in this method statement prior to thecommencement of works, and records of this maintained by the Contractor/Foreman.All operatives have been trained in manual handling.Subcontracted crane operator shall have valid ticket and to be CSCS certified.The welding operations to be carried out by qualified welder.The foreman to be trained in slinging.Manipulating of lifted materials to be performed by competent employees.Trained rescuer has to be on site while performing works at the edge or river bank.Details of Permits to Work:All operations to be carried out at the edge of the river bank require permits to work. Also, thewelding is classified as process requiring permition.Sequence of works:1. Erect hoarding around the site preventing public from accessing.2. Site establishment.3. Deliver and unload the steel.4. Cut and weld boardwalk‟s sections on site.5. The existing wall demolition.6. Fixing anchors.7. Delivery and assembling 80 tonnes crawler crane.8. Handling and lifting the boardwalk sections to the installation point.9. Bolting into the wall the steel sections supported by crane.Traffic Management Signage:One line of the Eden Quey road to be closed to traffic and be fenced off. Pedestrian way to be divertedto the other side of the road. The entry gates will be located at the east and west ends of the site. Erectsuitable signs informing public about diverted traffic and warning signs to forewarn of the knowndangers at the entry gates to construction site.Fall protection Measures:All employees working at the edge of the river bank are required to have signed permit to work and towear harnesses secured by inertia reel. Inertia reel attachment points will be established by competentperson. The pendulum effect must be prevented by providing 2 attachment points per each worker.The length of the reel must not allow employees falling into the water.Hazardous Substances:Acute Toxic Health Hazard Corrosive Danger toenvironmentHighlyFlammableExplosivesNo No No Yes Yes YesThe hazardous substances such as diesel, bottle of acetyleneand oxygen will be kept in the storagecontainer under supervision of competent person.P.P.E. Required:SafetyBootsHard Hats Gloves HearingProtectionEyeProtectionFallProtectionOther:Life JacketsHi-VisVestsBarriersInertia reels
  23. 23. 23Emergency procedures:In case of serious accident call 112 and report the accident to foreman. Call the first aider. Do notmove injured person unless there is a danger to his life.First Aid Facilities:Name of on-siteFirst Aider :Paddy MurphyFirst Aid Box Location:The canteenLocation of Nearest HospitalParnell street, Dublin 1Assessment of Remaining Risk:If the remaining risk factor is Medium (M) or High (H) then additional risk control measures arerequired.Further Specific Actions Required:This Method Statement shall be kept under review by the Contractor and Foreman. Any amendmentsshall be circulated to all parties concerned.Works to be carried out: Steel Jetties along Liffey River in Dublin 1Method Statement to be followed:Contractor carrying out works: Steel ManufacturerTalk Given By:JacekGuzowski Date:26.11.2012“I confirm that I have been adequately trained on the above Method Statement, and I agree tocarry out all works in accordance with the above Method Statement.”NAME(PRINT) SIGNED COMPANY
  24. 24. 24ConclusionThis assignmentincreased the general knowledge aboutthe process of preparation health andsafety risk assessment and method statement for the construction projects. The task given inthe project brief wastoinvestigate theformworks for assessing construction works andidentifying related to them hazards.This required obtaining the universalguidelinesprovidedby HSE for identifying, evaluating and managing risks. In addition, the literature review hasfurther outlined the importance of these documents. Edwards (1995) points out that theaccidentsin construction are unforeseen events, which can have the most significant effect.Therefore, the aim of the risk assessment was to ensure that such risks are managedeffectively, where the method statement is a formal written document detailing how anactivity is to be undertaken (Hughes and Ferrett, 2005). The methods statements are notrequired by statue, howevertogether with the risk assessments they form a crucial part of thesite safety management system (Cooke and Williams 2009).On the basis of the above arguments, it was understood that spending time on planning andpreventing the risks is worth of making an effort. Hence, the words of Sir Brian Appletonfrom the Piper Alpha Disaster (1990) emphasise the meaning of the conclusion; „Safety is notan intellectual exercise to keep us in work. It is a matter of life and death. It is the sum of ourcontributions to safety management that determines whether the people we work with live ordie’.This is to say that the risk controls identified in the risk assessment and method statementcan save not only humanlives, but also can stabilizethe companies‟ well-being. Nevertheless,it is important to understand that these documents will not remove all the risks on the project,thus both the client and contractor must recognise that residual risks will always remainregardlessof what preventions are made.
  25. 25. 25ReferencesCONSTRUCTION INDUSTRY FEDERATION, 2011. Method Statement Template. Dublin,Construction Industry Federation. Available at:http://www.cif.ie/assets/files/Method_Statement_Template.pdf [Accessed on: 20.11.2012]COOKE, B. WILLIAMS, P. 2009. Construction Planning, Programming and Control.3rded.Oxford, Wiley-Blackwell.CULLEN, W.D. 1990. The public inquiry into the Piper Alpha disaster. Great Britain,Department of Energy.CURLEY, T. 2006. The construction safety handbook, Cork, Oak Tree Press.DIRECT INDUSTRY, 2012. Angle Grinder GM 62N. Accessed at:http://www.directindustry.com/prod/rupes-spa/angle-grinders-69585-565109.html [Accessedon : 19.11.2012]EDWARDS, L. 1995. Practical Risk Management in the Construction Indsustry.London,Thomas Telford.ELECTRIC GENERATORS DIRECT, 2012. Baldor DG3E - 3000 Watt Industrial ElectricStart Diesel Generator. Avilable at: http://www.electricgeneratorsdirect.com/Baldor-DG3E-Portable-Generator/p870.html [Accessed on: 15.11.2012]HEALTH AND SAFETY AUTHORITY, 2009. Understanding Construction RiskAssessment. Dublin, Health and Safety Authority, Available at:http://hsa.ie/eng/Publications_and_Forms/Publications/Construction/Understanding_Construction_Risk_Assessment.pdf [Accessed on 23.11.2012]HUGHES, P. FERRETT, E. 2005. Introduction to Health and Safety in Cocntruction.Oxford, Butterworth-HeinemannSAFETY GEAR STORE, 2012. 2m Ikar Inertia Reel. Avilable at:http://www.directindustry.com/prod/rupes-spa/angle-grinders-69585-565109.html [Accessedon: 20.11.2012]WHOLESALE WELDING SUPPLIERS, 2012. Welding Suppliers Tools and Equipment.Available at:http://www.wholesaleweldingsupplies.ie[Accessed on: 20.11.2012]ZHONGXU CONSTRUCTION MACHINERY, 2012. Xcmg QUY80. Avilable at:http://www.xcmgcrane.com/proj.asp?articleid=311 [Accessed on: 12.11.2012]

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