HORIZONTAL DIRECTIONAL DRILLING (HDD) WORKS
CompletedReference: RA-2026-VRHct5xq
Total Activities
13
High Risk
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Medium Risk
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Low Risk
11
📄 Method Statement
HORIZONTAL DIRECTIONAL DRILLING (HDD) WORKS (4).docx
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Risk Assessment Matrix
| SN | Activity | Hazard | Consequence | Groups Exposed | Controls | Initial Risk | Additional Controls | Residual Risk |
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| 1 | Planning | Disorganized with risk of reduced safety on the site, Unidentified and/or unmitigated hazards, or unsafe conditions. | Works Delay and poor safety controls | PM/ Planning Team/ Execution Team | Carry out a pre-start check of the site, well ahead of work commencing on site.Check all equipment is fit-for-purpose, before sending to site.Ensure all equipment is suitable for work.Ensure all Client/ADOSH V4.0 HSE requirements are fulfilled.Provide all team members with incident emergency phone numbers and the process to follow for rapid notification in the event of an emergency.Ensure the planned activity was notified and mentioned in the look ahead program.Emergency Response Procedures,First Aid, Clinic, Nurse andAccident investigation & notification procedures.Preventive maintenance. |
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All engaged employees shall be aware of their roles and responsibilitiesAdministrative controls pertaining deliberate violations,Weather forecasts and adverse weather management. |
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| 2 | Mobilization/Transportation,Loading andunloading of machineries/equip ment to site | The collision of vehicles/ equipment Unsecured loads | Personnel Injuries, Property/ Equipment Damage | SiteEngineers/ Logistics In charge/ SiteSupervisor | All operatives have received the site safety InductionAll operatives receive TBT on a weekly basis, covering site-wide safety issuesTBT shall be conducted prior to starting activity.Safe access to be maintained.Only trained operators/drivers are allowed for the operations of the project.Barriers and signage in place for the working area.Drivers/operators must be competent, with UAE driving license third-party accreditation is required.Daily and monthly inspections of equipment shall be done.20 KPH Speed limits set and enforced.Flashing Beacon lights to be on while vehicle/equipment operational at the project.Audible reversing alarm to be fitted to vehicles on site.Crane and lifting accessories are fully tested and certifiedLifting permit to be optionedCritical lifting shall be carried under direct supervision of LAP.The operator has a valid UAE driving license and 3rd party accreditation.Crane activity under the control of a trained/ certified slinger /banks manDanger zone defined and enforcedPPE shall be worn by anyone out of a vehicle and walking on the siteEmergency Response Procedures,First Aid, Clinic, Nurse and Administrative controls pertaining deliberate violations,Weather forecasts and adverse weather management.Accident investigation & notification procedures.Preventive maintenance. |
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All plant and equipment shall be with 3rd party certificate.No unauthorized persons in the lifting zone during the activityRefer to ADOSH V4.0-SF Cop 36.0 -Plant and Equipment. And ADOSH V4.0 SF Cop 34.0Competent Spotter/ banks man shall control any reversing vehicles in the area.Availability of valid Third-Party certificate of all type of equipment |
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| 3 | Working Adjacent to Live Road | Moving Vehicle/Equipment running workplace/ moving traffic CollisionBlind spot Human error Congested Area | Personnel Injuries, Property/ Equipment Damage | Visitors/ Public/ Site Engineer/ Site Supervisor | The working area shall be fully secured with a fence and hard barriers with appropriate signage.Minimize destructions of drivers, clear early warning devise signs to be available,Follow the ITC approval if a detour is necessary.Certified flagman will be provided to any equipment working on site.Working areas will be barricaded and provide signboard will be in place.All vehicle/equipment will have a Warning Rotating light and available Reverse Alarm.Walkways and designated routes will be established and proper signboard be in place.Nobody is allowed to drive while in the influence of liquor or under prohibited drugs.All vehicles will be either parked within the diversion or in designated parking area.Crossing on road is prohibited except allowed area such as pedestrian crossing area.Close monitoring of the vehicle /traffic movementHigh visibility jacket shall be wearing by all persons.Avoid human as flagman, Pre-work controlled (Dummy flagman) to be prioritized on main road.Road to be kept clean & tidy on daily basis during the activity especially at acceptation exit point.Emergency Response Procedures shall be implemented, First Aid, Clinic, Nurse and Administrative controls pertaining deliberate violations,Close monitoring by competent person. |
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All drivers/operators must hold a valid U.A.E. driving license.Movement outside the controlled working zone must be prohibited.Refer to ADOSH V4.0 CoP 33.0 - Working on of Adjacent to a Road |
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| 4 | Pre-drive level Locating of underground utilities and its protection | Improper protection of live services / presence of live electricity, use of Steel pins & Rebar’s | Personnel Injuries, Property/ Equipment Damage | Project manager, Construction manager, Site Engineers,Supervisors and flagman | Obtain NOC/ PTW from the relevant authority.Prepare drawing & plan the activity and communicate to all concerned. Only hand dig trial holes with appropriate tools,Only trained operatives shall use the detector, all services shall be considered live and in service, adequate supports and protection shall be provided UG services,All identified and exposed services to be properly protected and supported with appropriate means.Excavation around the driving & receiving pit to be properly barricaded with hard barriers (concrete barriers) 2 meter away from the excavation edge and a secondary barrier to be provided.Flashing lights to be placed on the hard barriers and signage like ‘’Deep excavation & Danger Keep away’’, ‘’No unauthorized entry ‘’ etc. to be posted.Emergency Response Procedures shall be implemented,First Aid, Clinic, Nurse and Administrative controls pertaining deliberate violations,Close monitoring by competent person. |
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Underground services avoidance tools shall be calibrated and well maintained.Proper trainings and site HSE inspections shall be conductedEnsure all scanning device have valid third party certified |
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| 5 | Plant andequipment movement | Men-Machine Interface, Collision, Vehicle Incident, Pedestrians | Vehicle colliding with site works and other vehicles.Machines could drive over equipment, could hit laborers and surveyors next to roads. Site operatives hit by road traffic. Injury to people.Fractures, minor, severe accidents to site personnel.Workers, Consultant, Clients, HSE Rep.,Managers exposed to hazard. | Affected Group: Engineers, Supervisors, Foremen, Workers, Logistics department, Drivers, Operators, members of Client and Consultant team | All plants, equipment, operators, and riggers/banksman assigned for the job should be experienced.SBD must ensure the separate access and egress of the equipment and workers.All equipment, operators and riggers/banksman must be certified by an ADM approved 3rd party company.Only valid UAE License holding driver to drive the vehicle. Conduct Safe driving techniques training for banksmen/Operators.SBD Shall ensure to carried out Weekly & Monthly maintenance for equipment by the Plant DEPT & recorded.Conduct the toolbox briefing PTSB with operators and concerned workers prior to start the work.Area to be marked should be properly barricaded.All material loaded on trailer and lorry should be properly stacked foe shifting from place to place.No overloading of material to be ensured to avoid risk of falling of material and collusion during shifting and transportation.All vehicles and plants should be fixed with audible reverse alarm for safe reversing operations.All Vehicles should be fixed with revolving lights and flashing bacons.SBD shall ensure all incoming should have beacon lights while they are entering site.One way traffic system will be adopted for vehicle movement.Separate access and egress will be compacted and graded to ensure safe movement of vehicles.All plant and equipment must undergo inspection as per applicable requirements. |
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Vehicles should travel within traffic routes designated after obtaining necessary permission from the security gate & follow speed limit in line with approved logistic Plan.Roads/Access will be posted with warning and information signages such as access to offices and site, speed limits, reduce speed, man at work etc.All traffic movements to be controlled by trained and certified flagmen.Compliance with ADOSH CoP 36.0 Plant and Equipment v4.0 to be ensured prior to the commencement of work involving use of plant and equipment.All plant and equipment must have valid 3rd party certificates |
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| 6 | HDD operation | Unauthorized OperatorSlip. Trip hazardsContact with Existing underground servicesDiscrepancy between as build drawingand actual ground condition, Damage to existing utility.Ground SettlementInadequate access/egressLone workingInadequate communication systemsInadequate emergency arrangementMachine Breakdown | Personnel Injuries, Property/ Equipment Damage | Construction Managers, HSEO,Site Engineers, Supervisor &workers | Authorized and trained operator for HDD machine operation.Close supervision and monitoring.Operator should be inducted in safety controls.Continuous liaison with HDD operator during driveProvide clear and defined walkways.Remove trip hazards around site; store materials / plant in designated areas as per site plan.Maintain a tidy site.Access to the pit bottom will be through a steel shaft ladder bolted on the concrete segments or a scaffolding access tower inspected and taggedTools and materials shall be kept away from walkways.Obtain relevant NOC-Permit form concerned authorities prior to start the excavation/Always verify underground lines, using surface markings, before drilling vertically or horizontally to avoid hitting them.Trail pits shall be done to identify the services and to verify the services through as build drawing with actual services.Visually inspect the entire planned digging path for structures that indicate potential underground utilities (e.g., gas meters and manhole covers).Compare findings with surface markings (discussed below) to identify any missed utility.Employ potholing and other safety precautions described below to further identify and avoid lines in the drill path.Follow approved MSRA, use cable detectors for identifying underground services. OnlyTrained and competent person shall be deployed for the task.Use site-specific safety assessments to determine appropriate drilling techniques and safety practices (e.g., when potholing, drilling the bore, or using a back reamer).Contact the local utility location service to mark lines and assist with determining utility locations. Compare drawings with surface markings, as some utility lines may miss detection or may be missing from utilities maps.Review drawings and contact utility companies directly, whenever possible, to verify underground utility locations.Ensure that the HDD machine operator and tracker walk through the planned drill path during planning and site preparation. Check for structures (e.g., gas meters and manhole cover) that may indicate an underground utility line, obstructions along the drill path, and potential sources of interference that could affect tracking device readings.Train HDD machine operators and trackers before starting the operation to communicate effectively with hand signals and radios.Ensure trackers check the tracking device readings frequently during HDD operations and compare them with the pre-operational walkthrough readings. If any changes in readings occur (e.g., depth), the tracker should immediately signal the HDD machine operator to stop drilling, investigate, and take appropriate safety precautions before continuing to drill.Instruct trackers to look into the potholes to observe the: 1. drill stem as it passes near underground utility lines during drilling, and guide the HDD machine operator along the bore path to avoid striking a line; 2. back reamer to verify that it follows the bore path and avoids utility lines.Drill at a pace that is slow enough to permit the tracking device to sense any drill line deflections caused by large obstructions.Close supervision/ monitoring of HDD area.Ground survey to be conducted (Geotechnical investigation) prior to start the work.Installation of instruments to study ground conditions on regular basis.Training for the workforce for reporting.Adequate access and egress to be provided and maintained free from obstruction.Assess number of personnel before sending them in confined space and determine the number of persons required to carry out the work safely.Procedures must be put in place to monitor lone workers as effective means of communication are essential.Reduce time spent working alone so far as is reasonably practicable.Always ensure buddy system for HDD entry. Supervisor should maintain continuous communication with workers working in the isolated environment of a confined space via walkie-talkie or any other communication devices/means.Pre-agreed intervals of regular contact between the lone worker and supervisor, using phones, radios or email, bearing in mind the worker understands of English or their native language.External and internal lighting should be adequate.An effective and reliable means of communication among entrants inside the confined space, and between entrants and attendants, is required.The communication system used can be based on speech, hand signals, telephone, radio, and so on.Whatever system is used, it is important that all messages can be communicated easily, rapidly and unambiguously between relevant people.It is required to have an appropriate means of communication between the person working inside a confined space and the attendant stationed outside, whether by voice, rope tugging, tapping or by a battery-operated communication system specially designed for confined space use.It is important that confined space entrant(s) are informed quickly if a situation arises on the outside which could endanger the entrants, such as problems with a supplied air system or ventilation system.Horizontal entry emergency rescue shall be addressed.Approved emergency response team will be alerted in case of any emergency.Wind and Rain potential damage is mitigated by assessing the weather conditions and ceasing activities prior to a weather event as per the weather plan.Spill kit arrangement must be providedOnly workers involve will be allowed near machinery |
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Ensure access/ egress is free from obstacles.Review drawings and contact utility companies directly, whenever possible, to verify underground utility locations.Drilling Refer to the as built drawings.Use safe and appropriate potholing techniques to the planned drill path's depth to expose any hidden underground utilities.Emergency escape to be provided for emergency situation such as winch /Tripod or crane man- basket or both.Information regarding emergency procedures should be given to lone workers. OHSRA(Occupational health and safety risk assessment) risk assessment may indicate that mobile workers should carry first-aid kits and/or that lone workers need first-aid training. They should also have access to adequate first-aid facilities.Confined space compliance will be applicable as per site requirements. Emergency arrangement will be provided along the site requirements.Whenever a near-miss is recorded, it is important to identify, as far as possible, the hazards that contributed to the incident. Actions can then be taken to eliminate or reduce the risk of a similar incident occurring in the future. |
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| 7 | Working At Height (Around the Pit) | Fall from height due to inadequate fall prevention controls, intoxication and inattention. | Personnel Injuries, Fractures | Construction ManagersSite Engineers Supervisor | Provision of Guardrails around the pit.Shall be firmly fixed on the ground.Area around the pit to be cleared from any rocks.Restricted entry for unauthorized personnel.Persons working at the pit edge should wear Full body harness hooked at adequate anchor pointRestricted zone around the pit edges.Emergency Response Procedures shall be implemented,Close monitoring by competent person.Proper trainings and site HSE inspections shall be donePits are to be secured properly with barricade and safety signage with flashing light to be installed |
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First Aid, Clinic, Nurse and Administrative controls pertaining deliberate violations.Awareness on Emergency procedure for working in a confined space. |
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| 8 | Butt fusion welding | firesExplosion of gas BurnFly Sparks Gas leakageProperty damage,Thermal Burns,Storedenergy release,Pinch point, EquipmentFailure, Electrical,Manual Handling | Personnel Injuries, Property/ Equipment Damage | Welding technician, Supervisors Workers | HOT WORK PERMIT Should be issued prior to hot work.Don’t let anybody to stand in front or face anydirect pressure when turn on the cylinder valve.The hose used in gas cutting/ welding operation should be different color.Provide flash back arrester.Keep an adequate space between hot work area & cylinders.Empty cylinder should store separately.Appropriate PPE should be worn by person involved or present at the work areaFire Extinguisher & Fire Blankets shall be provided at appropriate places and train workers how to use it.First Aid Kit should be available at work areaSafe guard to be attached to grinderUse of hand gloves, goggles and follow the instruction.keep hand away from cutting blades & pinch point area.Ensure operatives are well trained and competent to perform the taskTBT to be conducted, Trained personnel to be deployed,Use mandatory PEE's. Ensure no combustible materials around the activity, Inspections carried out for butt welding machine,Use mechanical aid for lifting equipment |
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Gas cylinder should place in vertical.Monitoring the use of PPE by the work force.Fire watcher shall be stationed in the area near the hot work.Comply with ADOSH V4.0-SF-CoP 28.0 Hot work operations.Fire points must place near to the machine |
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| 9 | Pre-drive level Locating of underground d utilities and its protection | Improper protection of live services /presence of live electricity, use of Steel pins & Rebar’sDiscrepancy between as build drawingand actual ground condition, Damage to existing utility. | Personnel Injuries, Property/ Equipment Damage | Project manager, Construction manager, Site Engineers,Supervisors andflagman | Obtain NOC/ PTW from the relevant authority.Prepare drawing & plan the activity and communicate to all concerned. Only hand dig trial holes with appropriate tools,Trail pits shall be done to identify the services and to verify the services through as build drawing with actual services.Scanning with underground scanning on activity areas Only trained operatives shall use the detector, all services shall be considered live and in service, adequate supports and protection shall be provided UG services,All identified and exposed services to be properly protected and supported with appropriate means.Excavation around the driving & receiving pit to be properly barricaded with hard barriers (concrete barriers) 2 meter away from the excavation edge and a secondary barrier to be provided.Flashing lights to be placed on the hard barriers and signage like ‘’Deep excavation & Danger Keep away’’, ‘’No unauthorized entry ‘’ etc. to be posted. |
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Underground services avoidance tools shall be calibrated and well maintained. |
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| 10 | Maintenance Handling of oil drums/ Chemicalsi.e. Bentonite | Splash/ Spillage of oil.Contact with contaminated hazardous wasteFireCombustible and non- hazardous material storage.Absorption Through SkinIngestion Splash into Eyes | Personnel Injuries, Property/ Equipment Damage | Supervisors Workers | COSHH assessment to be completed and communicatedTBT to the work force.Experienced and trained work force to be deployed.Substances shall be stored (in a container) away from any sources of ignition.Number of Substances shall be taken from store in small quantities and only sufficient for a day.MSDS shall be on hand whilst substance is being used the user must ensure that he is aware of correct handling procedures surrounding the substance. This shall be included in the daily TBT.Lids shall be replaced after use and containers returned to storage areas.All eye injuries must be treated by a first alder immediately to ensure that the injury does not get worse.Trained and experienced labours to be deployedEnsure proper forms of personal protective equipment (PPE) are worn at all times. i.e. Face shieldPersonal shall ensure that sufficient personal protective equipment (PPE) is worn at all times, i.e. Rubber gloves, goggles / face shield and protective coveralls, etc. |
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All sources of ignition shall be eliminated,The use of eye/face protection, hand protection (nitrile rubber glove) and skin protection barrier cream while working with the bentonite to be implemented.Proper disposal of chemical waste |
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| 11 | Use of Hand tools. | Impact, contact, entanglement, drawn in, slip trip / fall. | Personnel Injury / Body cuts. | Engineers, Supervisors, Foremen, Workers, Logistics department, Drivers, Operators, members of Client and Consultant team | Ensure the conditions of the hand tools are good, when obtaining from the stores.Tie-off lanyards properly.Hand tools shall not be kept on walkways.Hand tools shall be kept in toolboxes whenever not in use.All tools shall be inspected for any damage on daily basis and at regular intervals.The storekeeper will inspect all the new tools before sending them to site.Ensure that no homemade/makeshift tools are used at site.Use of power tools shall be restricted to trained and competent operatives only. Ensure the operatives are wearing PPE hard hat, hand gloves, Safety shoes, safety goggles and dustmask etc., throughout the activity. |
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Hand tools shall be tethered properly by using lanyards with tools to prevent it from falling.Compliance with ADOSH CoP 35.0 Portable Power Tools to be ensured.Ensure there is no unauthorised entry |
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| 12 | Working near machineries | 1. Machinery malfunction causing injury 2. Electric shock from faulty equipment | Permanent hearing damage/ Hearing deficiency. | Engineers, Supervisors, Foremen, Workers, Logistics department, Drivers, Operators, membersof Client | Noise assessments to be carried out.Adequate instructions and information must be provided to the workers.Toolbox Talk must be given before starting the work. Maintain sufficient distance from the machinery. |
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Use adequate PPE such as earmuff, ear plug must be worn while working near machinery.Only workers involve will be allowed near machinery |
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| 13 | Material Handling/Shifting (Manual) | Improper lifting techniques, materials fall. | Work-related musculoskeletal disorders (MSDs) such as pain and injuries to arms, legs, and joints due to lack of knowledge of Manual Handling technique.Affected Group: Supervisors, Foremen, Workers/ helpers. | Engineers, Supervisors, Foremen, Workers, Logistics department, Drivers, Operators, members of Client and Consultant team. | PTSB to be conducted prior to starting the activity.Minimize movement while handling equipment/tools.Car cranes will be used for unloading any heavy materials to alleviate the requirement for manual handling.Supervision will assess weight, centre of gravity etc. and determine the number of people required to carry out the work safely.Personnel will be trained in manual handling techniques.Avoid manual load lifting, if possible, if not then, check and ensure that the load is below the recognized permissible limit.Stand as close as possible to the object to be lifted.Bend your knees as much as possible.Bend hip keeping head & back as straight as possible.Use body weight to tilt the object or load the object.Lift gradually using leg and stomach muscles.Use a back safety belt to avoid back injury.Avoid twisting and sudden movement to body while lifting the load.Area to be illuminated with adequate lighting.Use hand gloves with sufficient grip to avoid insecure hold.Train the staff in good posture.Use slip resistance shoes with toe protection.Use hand gloves with sufficient grip to avoid insecure hold.Train the workers for good posture.Use slip resistance shoes with toe protection.Carry out loading and unloading at designated areas.Take necessary precautions to prevent the vehicle moving during loading and unloading.The driver has to stay inside the vehicle cabin while loading is in progress.Ensure to adhere with complete and appropriate P.P.E.Use mechanical aid devices for lifting where ever possible. |
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Wear fit to body clothes.Don’t lift more than 25 kg and use proper handling techniques.Must comply to ADOSH CoP:14.0 - Manual Handling and Ergonomics v4.0 |
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