203780 - Method Statement - Malahide Marina Dredging · The dredger is to be mobilised via road to...
Transcript of 203780 - Method Statement - Malahide Marina Dredging · The dredger is to be mobilised via road to...
20.3780 Malahide Marina Dredging 20.3780-VO-VOM-PR-0010/01
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Method Statement – Water Injection Dredging Page 1 of 20
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METHOD STATEMENT
Malahide Marina Dredging
A First Issue 12-03-2018 LCH MHE JBW
Revision Description Date VO
Originator VO
Checked VO
Approved Approval
Client
Document number Client:Document number Contractor: 20.3780-VO-VOM-PR-0010/01
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Revision record Revision Number Description Date A First Issue 12-03-2018
External referenced documents
Supporting documents Document Number Document Name VOMS-PR1.02-OD-01 Van Oord Management System QHSE-PSU-001 Project Risk Assessment Database (PRADA) QHSE-MAR-PU-300 Risk Assessment Tool (RAT) Marine Floating Equipment VOMS-PR1.10-TE-01 Template Risk Assessment VOMS-PR2.04-TE-09-03 Template Inspection and Test Plan (ITP) VOMS-PR2.04-TE-10-01 Template Work Instruction 20.0000-VO-VOM-PR-0001 Project Management Plan 2018 (including all supporting
documents)
Distribution list Dredger Crew Superintendent / Works Manager Client (hardcopy) Licensing Authorities
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Table of contents
Abbreviations and definitions .................................................................................................................. 41 Scope ............................................................................................................................................... 5
1.1 Project description ................................................................................................................... 51.2 Scope method statement ......................................................................................................... 51.3 Requirements .......................................................................................................................... 51.4 Objectives, targets and indicators ........................................................................................... 6
2 Resources ........................................................................................................................................ 72.1 Marine equipment .................................................................................................................... 72.2 Land based equipment ............................................................................................................ 7
3 Methodology ..................................................................................................................................... 83.1 Preparation .............................................................................................................................. 83.2 Execution ................................................................................................................................. 8
3.2.1 Principles of Water Injection Dredging ................................................................................ 83.2.2 Scope of works .................................................................................................................... 8
3.3 Planning ................................................................................................................................... 94 Organisation ................................................................................................................................... 10
4.1 Organisation .......................................................................................................................... 104.2 Tasks and responsibilities ..................................................................................................... 10
5 Quality ............................................................................................................................................ 126 Health and Safety ........................................................................................................................... 13
6.1 Risk Assessment ................................................................................................................... 136.2 Personal Protective Equipment ............................................................................................. 136.3 Site Specific Risks ................................................................................................................. 14
7 Environment ................................................................................................................................... 15
Appendix 1 Inspection and Test Plan ............................................................................................... 16Appendix 2 Emergency Response Flowchart ................................................................................... 17Appendix 3 Route to Hospital ........................................................................................................... 18Appendix 5 Equipment Specifications .............................................................................................. 19Appendix 6 Risk Assessment ........................................................................................................... 20
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Abbreviations and definitions
Abbreviations
EMP Environmental Management Plan HSE Health, Safety and Environment HSSMP Health, Safety, Security Management Plan ITP Inspection and Test Plan ITR Inspection and Test Record JSA Job Safety Analysis LMRA Last Minute Risk AssessmentMS Method Statement PPE Personal Protective Equipment PQP Project Quality Plan PRADA Project Risk Assessment DatabasePTW Permit to Work QA/QC Quality Assurance / Quality Control RA Risk Assessment RAT Risk Assessment ToolSOC Safety Observation Card SWP Safe Work Practice VOMS WID
Van Oord Management System Water Injection Dredging OR Water Injection Dredger
Definitions
Client Malahide Marina Village Ltd
Engineer NA
Contractor Van Oord Ireland Ltd
Sub-Contractor NA
Method Statement A method statement (sometimes referred to as work method statement or safe work method statement) is predominately used to describe specific instructions on how to safely perform work related tasks and activities.
If applicable (e.g. as a result of contractual requirements), method statements are to be submitted during the preparations of the project for approval by the client or their representative.
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1 Scope This chapter provides a general project description and the scope of work covered under this method statement including the requirements.
1.1 Project description Maintenance dredging is required at Malahide Marina for safe navigation of vessels. An estimated 17,000m³ of silt is required to be removed using Water Injection Dredging. Dredging is required over an initial campaign in Nov-Jan 2018/2019. Two subsequent campaigns in Nov-Jan 2021/2022 and Nov-Jan 2024/2025 are required. Volumes of the 2nd and 3rd dredging campaign will be assessed prior to commencement of operations.
Van Oord is the leading contractor in the dredging technique called ‘Water Injection Dredging’ (WID). This hydrodynamic dredging technique uses the natural dynamics of the system where the horizontal transport takes place in the water column. The Tidal and river current, together with the gravitational effect, transport the dredge material out to sea. This sustainable dredging technique developed by Van Oord eliminates the need for traditional dredging techniques and is a lot more cost effective.
The variety and in general small size of these projects still require the Van Oord standard and comply with all Irish laws and regulations.
The Project Management Plan (including all supporting documents) is set up as one overall covering management document. It covers all the running, and future, stand-alone maintenance Water Injection Dredging projects in Ireland executed by Van Oord Ireland Ltd. The scope of works include maintenance dredging in rivers and canals and at locks, docks and jetty’s varying from large Ports and Harbours to small Marina’s.
1.2 Scope method statement This Method Statement is made for the WID activities in Malahide Marina and falls under the overall WID Ireland Project Management Plan. The various dredge locations are outlined below.
November / January • Campaign 2018/19 – total estimated 17,000m3 to be removed • Campaign 2021/22 – total estimated tbc m3 • Campaign 2024/25 – total estimated tbc m3
As agreed with the Harbour Master, various locations within the Harbour will be dredged using Water Injection Dredging. The WID Borr [or equivalent] will be mobilised for the works.
This Method Statement has developed and will be implemented with the health, safety and welfare of all personnel, the public, wild life and the environment being of utmost priority.
The content of this Method Statement is to be verbally communicated to the workforce involved by the Superintendent the day prior to the task commencement, this ensures that the correct personnel, tools and equipment are in place and gives enough time for suggestions or additional control measures identified during the briefing to be included within the Method Statement.
Where required the activities will be re-briefed in the form of a toolbox talk on the day of the activity, to ensure that the requirements are fully understood. Feedback from the workforce is encouraged.
1.3 Requirements For the requirements applicable to the scope of work covered under this method statement reference is made to the following documents:
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# Requirements sources Reference
01 Inspection and Test Plan (see appendices) VOMS-PR2.04-TE-03-09-03
02 Legal Register Ireland 20.0000-VO-VOM-PR-0007
Van Oord will execute the scope of works in line with the contractual requirements, applicable law and applicable International Guidelines and Standards.
1.4 Objectives, targets and indicators For the objectives, targets and key performance indicators applicable to the project including the scope of work covered under this method statement reference is made to the information provided in the Project Management Plan 20.0000-VO-VOM-PR-0001.
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2 Resources This chapter describes the required resources scheduled to realise the scope of works covered under this Method Statement.
2.1 Marine equipment The following marine equipment (or similar) are scheduled to be used during the realisation of the works.
Name Description marine equipment
Borr Water Injection Dredger
Marine equipment employed will hold the necessary certification as per legal and Van Oord requirements.
2.2 Land based equipment The following land based equipment (or similar) are scheduled to be used during the realisation of the works.
Name Description land based equipment
- Mobile Crane, for (de)mobilisation.
- Trucks incl low bed trailer, for (de)mobilisation.
Land based equipment employed will hold the necessary certification as per legal and Van Oord requirements.
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3 Methodology This chapter describes the approach how the scope of works covered under this Method Statement will be realised and stipulates the preparation works, execution method and planning.
3.1 Preparation The dredger is to be mobilised via road to Malahide Marina in Malahide, Ireland.
On arrival the dredger will be assembled on the quay and lifted in the water in its entirety. The lifting operation will be carried out by a mobile crane. To lift the vessel a heavy crane will be required with the capacity to lift 62T. The lifting process will be planned and supervised by a Van Oord appointed person in close cooperation with the local Authorities. All lift plans, waivers and risk assessments will be put in place before the lift is undertaken. The reverse process will be carried out for the demobilisation of the crane at the end of the job.
3.2 Execution
3.2.1 Principles of Water Injection Dredging
Van Oord Ireland is the operator of the dredging system known as Water Injection Dredging. The Water Injection Dredging system is unique in its design to remove silty material from the seabed. A jet bar is moved over the surface of the seabed while the nozzles inject large volumes of water at low pressure into the sediment layer.
The density of the soil layer is lowered until it shows fluid behaviour. The fluidized sediment layer is then transported horizontally in the lower part of the water column away from the dredged areas. The hydrostatic pressure difference, the gradient of the seabed and the tidal and current flows are the main driving forces for this natural horizontal transport. In most cases the fluidized sediment will finally re-enter the water column in a high energy environment where it will be mixed with other naturally occurring sediment particles. From there on the sediment continues its natural route towards its original destination.
The WID process explained in 6 minutes: https://www.vimeo.com/69300630 [no login required]
3.2.2 Scope of works
Deposited fine silts within the various dredge locations will be dredged on the Broadmeadow River estuary. The dredged material will be transported using flow channels to the deeper area within the Harbour and dispersed over the ebbing tide out to sea. A total of 40 tides of dredging is anticipated, with the aim to remove 17,500m3 of silt.
Figure 1: Dredge location & flow channels
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The flow channels are indicated in red. The dredger will remove the material from in between the finger pier pontoons towards the flow channels. In yellow the movable marina pontoons are indicated. The marina pontoons can be moved to facilitate the ease of dredging and significantly reduce the dredging time required.
3.3 Planning Mobilisation on site will be on a date as agreed with the Client.
Based on the envisaged workload of dredging 40 tides we anticipate to have the works complete within 20 days. The total operation including mobilisation and demobilisation is expected to take approximately 24 days. Operations will be carried out on either tides (consisting of a 6 hour period on the ebb tide, including setup and mooring up).
Our site representative Farrell McCullough or Lizzie Chellew will have a daily meeting with the Port Engineer to discuss progress of the works and planning.
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4 Organisation This chapter describes the personnel involved in the realisation of the scope of works covered under this Method Statement and provides information on the organisation, roles and responsibilities.
For the overall project organisation reference is made to the Project Organisation Plan <20.0000-VO-VOM-PR-0002>.
4.1 Organisation
4.2 Tasks and responsibilities The general project roles and responsibilities of the key personnel as part of the project team are provided in the Project Organisation Plan <20.0000-VO-VOM-PR-0002>.
The specific tasks and responsibilities of the project staff, crew and labour directly involved in the activities covered under this Method Statement are described below and in the appendix Work Instruction in case applicable.
VOUK WID & TSHD Maintenance dredging
Managing DirectorJurjan Blokland
WID TeamFarrell McCullough
Matthew HellyerLizzie Chellew
Jonathan Rogers
JetSed / MaasmondBorrOdin
Baldr & Havik
WID Operations VariousTSHD Operations
TSHD Team
Project-by-project basis
TSHD
Operations ManagerJasper Blaauw
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Tasks Description Responsible
Is responsible for the delivery of the operational phase of the project, provides the project team with hierarchical leadership and ensures compliance with the safety regulations and checks.
Operations Manager
Provides project team with operational leadership, draws up the work plan, informs and instructs the Captain and the survey team with respect to their duties, ensures all relevant persons are kept fully informed about construction status and ensures compliance with safety regulations
Works Manager/ Superintendent
Overall command over the vessel (overriding authority), manage the vessel and crew on behalf of the owner/ operator in an efficient and economical manner, taking in account safety and environmental issues for all operations. Plan, prepare and execution of marine operations and navigation, final responsibility for the safety of the ship, it’s crew and all personnel on board. Has the authority to stop all operations which are not executed in a safe manner and/or endangering the vessel and its crew.
Skipper
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5 Quality This chapter describes all quality aspects directly related to the scope of work covered under this method statement.
For the overall project information on the quality aspects reference is made to the Project Quality Plan <20.0000-VO-VOM-PR-0009>.
A pre-survey will be provided by the Client. This data is used to plan the dredging operations as described in previous sections. The survey data will also be available onboard the dredger, where it is updated with the position and depth of the bar, so that the dredger can keep track of where it has worked.
All dredgers use a contracted online system to receive RTK – Water level information and correction.
Every day a screen dump is made of the dredging tracks to provide both the Client and the project team a visual overview of the works carried out each day. The screen dumps are supported by daily reporting. An example screen dump is shown below.
Upon completion a post dredge hydrographic survey will be organised by Hydrographic Surveys Ltd (by the Client).
As part of this Method Statement an Inspection and Test Plan (ITP) has been prepared in line with the Project Quality Plan. Further reference is made to the ITP (VOMS-2.04-TE-03-09-03) in the appendices.
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6 Health and Safety This chapter describes all health and safety aspects including hazard identification, risk assessment and applicable Personal Protective Equipment related to the specific scope of work covered under this method statement.
For the overall project information on health and safety reference is made to the Project Health Safety and Security Management Plan <20.0000-VO-VOM-PR-0004>.
6.1 Risk Assessment Prior to the start of an activity covered under this Method Statement a Risk Assessment (RA) will be carried out in order to identify risks and if necessary mitigate risks to an acceptable level.
The Risk Assessment(s) will be discussed and communicated to persons involved prior to the start of works and fully documented. Attending persons will be asked to sign the Risk Assessment to confirm their attendance and understanding of the briefing.
Reference is made to the Risk Assessment (VOMS-PR2.04-TE-03-09-03) related to the scope of work covered under this Method Statement in the appendices.
All mitigation measures described in the Risk Assessment(s) enclosed shall be in place before start of the work.
6.2 Personal Protective Equipment Mandatory Personal Protective Equipment (PPE) within Van Oord as a minimum are:
Mandatory PPE
Approved safety footwear
Hard hat / safety helmet
High visibility clothing (jacket or coverall) with
long sleeves
Life jacket (when working near or over the water and during
boat transfer)
Certain specific tasks and activities covered under this Method Statement may require personnel to wear job specific PPE.
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6.3 Site Specific Risks Site specific risks at the site include the following:
• Weather conditions It is anticipated that the works are not affected by the weather conditions (wind or swell), and conditions that do impose hinder of the works can be absorbed in the planning.
• Shipping / traffic within the port During the kick-off meeting our Superintendent will discuss the planning with the Harbour Master and contacts will be made with the local fisherman via de Harbour Master
The full risk assessment can be found in Appendix 5.
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7 Environment This chapter describes all environmental aspects related to the scope of work covered under this Method Statement including requirements, impacts, control and monitoring measures.
For the overall project environmental information reference is made to the Project Environmental Management Plan <20.0000-VO-VOM-PR-0005>.
Anywhere known to consist of contaminated material will not be dredged or levelled using water injection. If contaminated material is suspected whilst working is being undertaken, operations will be suspended and an investigations will be carried out.
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Appendix 1 Inspection and Test Plan
Inspection and Test Plan (ITP) for
Water Injection Dredging
(Method Statement)
1 Legend “Verification by”
WM – Works Manager SI – Superintendent CS – Chief Surveyor MV – Master of Vessel QC – QC Inspector
2 Legend “Inspection by”
HP – Hold point WP – Witness point MP – Monitor point DR – Document review point
No. Activity / description Inspection method /
standard Acceptance
Criteria Frequency
Verification by1 Records
Inspection by 2Executed
VO Subcon Client
MALAHIDE MARINA
1. In-Survey
In-Survey prior to dredging (Multibeam)
One time, in order to provide the dredger actual levels of the dredge area.
WM Updated chart and update on-board survey computer
By Client, optionally can be undertaken by Van Oord
2.
Post-Survey Post-Survey after completion of dredging activities
One time, No maximum level set, realistic maximum to be maintained.
WM Updated chart and update on-board survey computer
By Van Oord
3.Dredge tracks Print screen of on-
board survey computerEach Tide MV Digitally send to
Client via WM/SIMP
4.Daily Progress Report (DPR) Timings & areas of
operations Every Day WM/SI Digitally send to
Client MP
5.6.7.8.9.
10.11.12.13.
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Appendix 2 Emergency Response Flowchart
* See page 8 for definitions
FIRST ON SCENE
Notify Master Raise alarm, alert others in area, provide first aid, rescue or firefighting
actions.
Master determines emergency
(minor / major)
Vessel crew takes necessary First Aid
actions
Master notifies VO Marine Coordinator / Superintendent:
+44 7767 236 541
Minor*
Major*
Master informs Marine Coordinator about minor emergency and actions
taken
Marine Coordinator becomes first contact point to assist
Master.
Marine Coordinator informs Project
Manager & VTS.
Damian Offer Harbour Master
tbc
Optional:
Coast guard
999/112 Fire brigade
999/112 Police
999/112 Ambulance
999/112
Master takes on- scene command
In case injured person(s) need to be transported to
hospital, the Marine Coordinator ensures that the dredger is met at an
agreed berth for the injured person to be
brought to the hospital.
Project Manager ensures the Client is
informed.
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Appendix 3 Route to Hospital
Malahide Marina – The Mater Hospital Dublin:
From: Malahide Marina, Malahide, Co. Dublin, IrelandTo: The Mater Hospital, Eccles St, Inns Quay, Dublin 7, D07 R2WY, Ireland
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Appendix 4 Equipment Specifications
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Equipment
Water injection dredger Borr
Dredging and Marine Contractors
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Name Borr
Type Water injection dredger
Description Borr: Dismountable dredger, transportable
on two trailers
Farrell: Pontoon with spuds, hydraulic crane
with clamshell or cutter unit
Sailing and dredging area Inland waters only
Year of construction 2015
Dimensions Borr Length overall 18.73 m
Breadth overall 5.32 m
Moulded depth 1.80 m
Dimensions Borr & Farrell Length overall 21.73 m
Breadth overall 6.70 m
Moulded depth 1.80 m
Maximum dredging depth Borr: 14.00 m
Farrell: 8.00 m
with clamshell or cutter unit
Width injection pipe 5.16 m
Propulsion 2 x 89 kW
Total power installed 460 kW
Jet pump 260 kW
Borr
May
201
5
Principal particulars
Van Oord
PO Box 8574
3009 AN Rotterdam
The Netherlands
T +31 88 8260000
F +31 88 8265010
I www.vanoord.com
Contact
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20.3780 Malahide Marina Dredging 20.3780-VO-VOM-PR-0010/01
Revision A
Method Statement – Water Injection Dredging Page 20 of 20
eDOCS no. SAWP-#3318804 VOMS-PR2.04-TE-03-10
Appendix 5 Risk Assessment
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Risk Assessment WorksheetProject Prep. LCE RA Doc. No. 20.3780-RA001
Client Malahide Marina RA date 13-Feb-18 Checked MHE Revision date
Contractor Van Oord Project number 20.3780 Authorised JBW Revision
Attendees
Name
Richard Needham
Dean Burgess
Leo McCullough
Hazard evaluation
Consequence By who By when
S L R S L R
1. Lifting
1.1 Lifting of dredger during
Mobilisation /
Demobilisation
Falling loads,
failure of lifting
equipment,
overloading
Serious Injuries,
Fatality,
Loss of equipment
4 C HIGH Ensure lifting operations are planned, and
supervised by a competent appointed person
Lift plan to be compiled by an Appointed person.
Crane certification to be check and in place.
Lifting equipment to be checked prior to any lifting
activities.
Competent banksmen and slinger signallers to be
available at all times.
Wind conditions to be monitored
Restricted area
Guide ropes to be used on large loads
Use of PPE
Ground conditions checked by site visit prior to lift.
Stop the job authority.
Separate Risk
Assessment
Toolbox talk.
Check all certificates.
Good accurate lift plan.
Only competent and
necessary personnel in
vicinity of crane ops
Ground checks for
stability.
Radius outlined and noted
with regards to
obstructions.
Barrier tape/bollards in
place outlining lifting
operations in place.
Apointed Person
and Crane
Supervisor.
Before Lift. 4 B MEDIUM
1.2 Lifting of dredger during
Mobilisation /
Demobilisation,
connecting lifting gear
on the dredger.
Working at
height with non
continuous hand
rails when
dredger is in two
sections.
Falling from the
vessel on
hardstanding
ground or from
transport lorry.
4 C HIGH Use of proper PPE.
Competent crew.
First aider on site.
Avoid/minimize working at height/leaning over side
of vessel.
Toolbox talk.
Taking additional time and
caution when working at
height.
Skipper/ crew Before going
onboard.
4 B MEDIUM
1.3 Lifting of dredger during
Mobilisation /
Demobilisation
Use of ladders
for access to
vessel on
hardstanding
ground.
Ladder slipping and
causing person to
fall, Serious
Injuries, fatality.
4 C HIGH Secure ladder to vessel at top.
Foot ladder for each other.
Make sure ladder is well maintained and checked
for damages.
Ensure ladder is long enough to extend above
height of vessel on the lorry.
Skipper/ crew Before going
onboard.
4 B MEDIUM
1.4 Lifting of dredger during
Mobilisation /
Demobilisation
Other activities
close to area of
lift.
Third parties being
too close to lift
area, traffic
effecting those
operating the lift.
Serious Injuries.
3 C MEDIUM Working area cordoned off.
Communication of any others working in the area
to stay a safe distance away.
Crew/
Surpervisors.
Before Lift. 3 B MEDIUM
1.5 Lifting of dredger during
Mobilisation /
Demobilisation
Working close to
the quay wall
edge.
Falling in water
causing
hypothermia/
drowning
3 C MEDIUM All persons involved with the lift to be wearing a
life jacket when having to be within 2 m from the
quay edge.
Taking extra care when moving around waters
side of crane and lifting vessel into water.
Toolbox talk.
Enforing the use of
lifejackets with one
another and crane
company.
Crew and crane
operators.
Before Lift. 3 B MEDIUM
VOWID Skipper
Position Company
Operations Manager
VOWorks Manager
MALAHIDE MARINA DREDGING
Name Position Company
VO
VO
Jaasper Blaauw WID Skipper VO
WID Skipper
VOLizzie Chellew Superintendent
Farrell McCullough
Item No. Process step / ActivityAdditional safeguards
Vessel / Project
Initial Risk Residual RiskCompletion
reference Hazard Van Oord Existing Safeguards
VOMS Control eDocs no: 3157337 VOMS-PR1.10-TE-01 Risk Assessment sheet Rev. 2
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Consequence By who By when
S L R S L RItem No. Process step / Activity
Additional safeguards
Vessel / Project
Initial Risk Residual RiskCompletion
reference Hazard Van Oord Existing Safeguards
2. Working on or near water
2.1 Working on or near
water on board the
dredger.
Dredging
Operations.
Unsafe work
practices
4 D HIGH Project Plan.
Method Statement.
Risk Assessments.
QHSE Monitored.
Emergency Procedures.
Emergency Telephone List.
Good Maintenance.
Compentent Crew.
Professional equipment.
Van Oord QHSE. All personnel. Before start of
any job.
2 C LOW
2.2 Working on or near
water on board the
dredger.
Insufficient
barriers,
Edge protection.
Falling in water
causing
hypothermia/
drowning
4 C HIGH Barriers to be inspected prior to work.
Experienced crew.
Kick off meeting before works.
Emergency rescue plan in place for MOB.
Wearing regularly serviced life jackets while on
deck.
No lone working.
Sand/salt for non-slip
decks.
All personnel. Before start of
any job.
2 C LOW
2.3 Access/Egress to
vessel, during boat to
boat transfer, or working
on desk close to the
edge of vessel.
Not using or
incorrect use of
life jacket.
Falling in water
causing
hypothermia/
drowning
4 B MEDIUM Correct wearing of life jacket.
Training in use.
Inspect before use by competent person.
Annual inspection(tested).
Inspect before use. All personnel. Before
access/egress.
2 B LOW
2.4 Access/Egress to
vessel.
Access/Egress
to vessel onto
jetty using a
ladder or steps.
Falling in water
causing
hypothermia/
drowing / head
injury.
4 C HIGH Use of ladder in correct way.
Only step across if safe to do so.
Make clear instruction of your intentions to other
crew members.
Wear Lifejacket.
Moor on floating pontoons
where possible to avoid
climbing of ladders.
All personnel. Before
access/egress.
2 C LOW
2.5 Working on or near
water on board the
dredger.
Working on deck
at night
Falling in water
cauing hypothermia
/drowing / head
injury.
3 B MEDIUM Adequate lighting.
Crew working together.
Good housekeeping (clean decks).
Competent crew.
Monitoring of water levels.
First aider onboard.
Good radios communications.
Avoid working at night.
Stay in wheelhouse at
night.
Only moor up when
alongside.
All personnel. Before working
at night.
2 B LOW
2.6 Working on or near
water on board the
dredger.
Swell Damage to crew
and equipment.
4 C HIGH Standing instruction not to dredge when swell is
above 0.5 m and/or when skipper is not
comfortable to work.
Closely monitor weather
forecast and condition.
Skipper/ crew Ongoing 2 C LOW
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Consequence By who By when
S L R S L RItem No. Process step / Activity
Additional safeguards
Vessel / Project
Initial Risk Residual RiskCompletion
reference Hazard Van Oord Existing Safeguards
3. Working onboard dredger.
3.1 Mooring, unmooring. Breaking
mooring ropes.
Injury 2 B LOW Inspect mooring ropes before use.
Monitor weather conditions.
Don't lose sight of operator, communicate what
you are doing.
No excess force on repoes from engine power.
Competent crew Skipper/ crew Before casting
off.
1 A LOW
3.2 Working ondeck. Wet Surfaces
Slips, trips or
falls.
Serious injury.
Fracture, brusing.
3 C MEDIUM Good housekeeping on deck.
Correct nonslip safety shoes.
Minimise work on deck.
Competent crew Skipper/ crew Ongoing. 2 A LOW
3.3 Working ondeck. Obstructed
walkways.
Slips, trips or
falls.
Serious injury.
Fracture, brusing.
3 C MEDIUM Plan storage of materials.
Clean and tidy deck.
Put stores away immediately.
Competent crew Skipper/ crew Ongoing. 2 A LOW
3.4 Working ondeck. Cables on
walkways.
Slips, trips or
falls.
Serious injury.
Fracture, brusing.
3 C MEDIUM Use cable covers.
Use signage.
Avoid any trip hazard.
Competent crew Skipper/ crew Ongoing. 2 A LOW
3.5 Working ondeck. Insufficient
lighting
Injury 2 B LOW Make sure all deck lights are working, with spare
bulbs available.
Competent crew Skipper/ crew Ongoing. 2 A LOW
3.6 Working onboard
dredger.
Inappropriate
footware.
Serious injury,
falling overboard.
3 B MEDIUM Safety shoes are compulsory. Safety shoes renewed on
request.
All personnel. Ongoing. 2 B LOW
3.7 Working ondeck. Greasy/oily
surfaces.
Slips, trips or
falls.
Serious injury.
Fracture, brusing.
3 B MEDIUM Clean spillages immediately.
Spill kits available.
Good housekeeping.
Degreaser available.
Report all spillages.
Keep decks clean and tidy. Skipper/ crew Ongoing. 2 B LOW
3.8 Working ondeck. Tripping over.
Catching loose
clothing on deck.
Edge protection
not in place.
Ice.
Not paying
attention.
Serious injury.
Fracture, brusing.
3 B MEDIUM Barriers inspected daily.
Competent persons.
Toolbox talk on slips, trips and falls.
No lone working.
Emergecy rescue plan in place.
Clean decks.
Good lighting.
Serviced lif jackets worn.
Monior weather conditions.
No lose clothing.
Wear overalls.
Salt bags on standby for
cold weather.
All personnel. Ongoing. 2 B LOW
3.9 Tidal working. Lone working.
Stress.
Lack of sleep.
Antisocial
behaviour.
Ill health.
Lack of
performance.
Lack of
concentration.
3 B MEDIUM No lone working.
Agreed hours of work.
6 hours off work inbetween tides.
Take breaks (share operating).
Health assessments.
Keep working hours to a
minimum for crew.
Crew working 11 days on
11 days off.
All personnel. Ongoing. 2 B LOW
3.10 Working in cold
conditions.
Hypothermia. Ill health.
Time off work.
2 C LOW Wrap up warm on deck.
Hat and gloves.
Take regular breaks in heated wheel house.
Take extra care on deck.
Don't rush.
Monitor weather. Skipper/ crew Ongoing. 2 B LOW
3.11 Working onboard and in
engine rooms.
Over exposure
to noise in
engine/pump
room.
Tinnitus.
Ringing in ear.
Loss of hearing.
2 C LOW Use ear defenders.
Noise monitoring.
Display signs.
No more than 5 minutes exposure.
No going in engine rooms
or pump room while
working.
Skipper/ crew Ongoing. 1 B LOW
VOMS Control eDocs no: 3157337 VOMS-PR1.10-TE-01 Risk Assessment sheet Rev. 2
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Consequence By who By when
S L R S L RItem No. Process step / Activity
Additional safeguards
Vessel / Project
Initial Risk Residual RiskCompletion
reference Hazard Van Oord Existing Safeguards
3.12 Refulling. Fuel spill. Environmental
damage.
Skin and eye
contamination.
Explosion, fire and
burns.
3 C MEDIUM COSHH assessments available.
Wear propper PPE.
Ensure fuel cap replaced.
Deliver from professional company.
Designated fuelling place.
Spill kits available.
Dip trays available.
Pollution prevention plan available.
Booms available.
Eye wash station available.
Emergency phone number available.
Knowing how much fuel
the fuel tank can take
before it over spills.
No bunkering at night.
Use of bunkering checklist.
Skipper/ crew Before job. 2 C LOW
3.13 Dredging Gas escape
from seabed
Contaminated
area
Health effecting of
crew
4 C HIGH Toxicity measurements when not sure.
All crew to remain inside in case of uncertainty.
Known contaminated
areas excluded from WID
dredging.
Filter overpressure unit
All personnel. Before job. 3 B MEDIUM
4. Sailing between locations.
4.1 Sailing to/from work
area
Collision with
other vessels
Damage to vessel
and dredge gear,
personal injury,
sinking
4 C HIGH Proper watch keeping, radar,
competent personnel,
nautical charts and publications,
COLREGS,
Project Sailing Plan
Toolbox talks
Survey/dredge Instructions
Listen out on local VHF
channel.
Nav officer’s ability to
communicate in English
Stay out of channel when
passing traffic.
Be aware of ship’s
interaction at close
quarters in confined
waters
Skipper 4 A MEDIUM
4.2 Sailing to/from work
area
Failure of
navigation
equipment
Asset damage,
Damage to vessel,
Grounding
4 C HIGH Regular inspection of navigation equipment
Proper maintenance schedule of navigation
equipment
Qualified crew
Clear emergency procedures displayed on bridge
Emergency drills
Sailing Plan,
Surveyed sailing route /
check depths
Skipper/ crew 4 A MEDIUM
4.3 Sailing to/from work
area or working.
Adverse
weather.
Personal injury.
Damage to vessel.
4 C HIGH Onboard monitoring of conditions.
Updates from local wind measurements where
available.
Wind and wave working
limits.
Weather forecasts.
Skipper/ crew Ongoing 4 A MEDIUM
4.4 Sailing between
locations.
Sailing
underneath
bridges or power
lines.
Personal injury.
Damage to vessel.
Electrocution.
5 C HIGH Knowing the exact height of any overhead items
before passing underneath.
Lowing the mast if possible if unsure of the
overhead items height.
Additional care to be taken
at night time, when
visability is less.
Skipper/ crew Ongoing 3 C MEDIUM
5. Other work activities.
5.1 Grinding/Cutting/
Welding/Drilling
Sharp, hot,
moving, electric
machinary
Burns
Fire.
Explosion.
Electrocution
Cut
Sparking
UV rays
Splinter
4 D HIGH Use of approved Equipment
Ensure the proper use of guards
Inspect equipment prior to starting work.
Proper PPE
Only experienced personnel to use the equipment.
Wear a face shield
Fire Extinguisher(s).
Fire Blanket.
Area clean and clear of all types of combustible
materials
Person carrying
out the work.
4 B MEDIUM
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Consequence By who By when
S L R S L RItem No. Process step / Activity
Additional safeguards
Vessel / Project
Initial Risk Residual RiskCompletion
reference Hazard Van Oord Existing Safeguards
5.2 Using electic tools. Using electric
tools and coming
into contact with
water.
Electrocution. 3 A LOW Safety Line on tool being used. Only use tools when tied
up alongside.
Skipper/ crew Ongoing. 1 A LOW
5.3 Wire Handling. Sharp wire. Hand injury. 3 B MEDIUM Wear gloves.
No lone working.
Inspect wire for any deficiencies.
Avoid any wire work. Skipper/ crew Ongoing. 2 B LOW
5.4 Manual Handling. Lifting heavy
items.
Severe back pain.
Muscle pain.
Lifelong back pain.
3 B MEDIUM Where possible use lifting aid.
Manual handling training to crew.
Know the weight you are lifting.
Split the weight into smaller loads if possible.
Remove any possible trip hazards.
Avoid repetitive handling.
Competent crew. All personnel. Ongoing. 2 B LOW
5.5 Manual Handling. Lifting heavy
items in wrong
way.
Severe back pain.
Muscle pain.
Lifelong back pain.
3 B MEDIUM Instructions of correct lifting method.
Use of mechanical aid where possible.
Make sure no fingers get trapped.
No obstructions in way.
Good handles on item to be lifted.
Do not push or pull load that’s heavy.
Do not lift if history of back problems.
Competent crew. All personnel. Ongoing. 2 B LOW
5.6 COSHH Hazardous
substances.
Fire and explosion.
Exposure.
Inhalation of toxic
substances.
Contact with skin.
3 B MEDIUM All substances stored in well ventilated & lockable
containers.
Signage in place.
Fire extinguishers in place.
COSHH assessments for all on board chemicals
available.
No smoking signs.
Appropriate PPE available.
Crew aware of what & wear on board.
Spill kits on stand by while refuelling.
Stop any leakage in water course using spill kits.
Competent crew. All personnel. Ongoing. 2 B LOW
Use of hydraulic
equipment
Leakage /
collapsing of
hydraulic deck
equipment
Eye damage,
burns, spill
2 D MEDIUM Maintenance programme for hydraulic equipment
in place
SOPEP procedures
Oil Pollution Prevention Team
When working on hydraulic deck equipment
ensure proper PPE is being worn (gloves,
glasses)
Skipper/ crew Ongoing. 2 B LOW
5.7 Other contractors. Underwater
works, collisions
with installations.
Drowning of divers,
damage to
installations and
vessels.
3 C MEDIUM Contact with Port Control.
Daily updates on site operations at work.
All personnel. Before any dive
works.
2 C LOW
6. Site specific activities or hazards.
6.1 Passing underneath
North Circular Road
Bridge.
Not enough
underwater
clearance.
Damage to vessel
and inury to crew.
3 C MEDIUM Evaluation of height of bridge and variation of
water level.
Monitoring of water levels (if go above normal
limit).
Can lower mast to go
underneath if required.
Skipper/ crew Before start job. 3 B MEDIUM
6.2 Dredging close to
underwater cables.
Uncovering,
damaging or
getting stuck to
cable.
Entanglement.
Electrocution.
Damage to cable.
4 C HIGH Knowing the alignment and depth of cable.
Knowing what it is carrying.
Knowing how it is encase.
Additional caution when
dredging in this area.
Skipper/ crew Before start job. 3 C MEDIUM
VOMS Control eDocs no: 3157337 VOMS-PR1.10-TE-01 Risk Assessment sheet Rev. 2
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