JDN/P - HAZID Nassau

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JDN/P - HAZID Nassau da Mind Map: JDN/P - HAZID Nassau

1. 01. General

1.1. COVID19 Onboard Management: Lack of local protocols for crew change increase risk of contagious on board

1.1.1. Quick Antigen tests as extra barrier of safety for MP via Agent before boarding + 5 day antigen test (Health visa required) to be conducted on board

1.1.2. Crew of DN205 (sleeping onshore) to have quick antigen test before joining MP bubble

1.2. Wellfare of Sandfield personnel personnel

1.2.1. Fridge+Food+housekeeping items order for wellfare conainers

1.3. Communication JDN >< Client. Client (several people) constantly interfering on JDN operations on site.

1.3.1. Clear lines of communication Client >< JDN.

2. 02. Mob/demob

2.1. IMPEX communication JDN >< Agent >< Customs.

2.1.1. Clear communication. Anticipate possible delays / increase impex & transporting costs.

2.2. Slow internal process for shipping container from Belgium to Nassau - LLR

2.3. Silt screen container stuck in customs due to non-payment by supplier

3. 03. Site installation

3.1. Shore connection

3.1.1. Fixating

3.1.1.1. Connect to Bollards (slings + spanners from CSD MP)

3.1.1.2. Anchoring

3.1.1.2.1. Waterside 2 x DF anchors

3.1.1.2.2. Onshore weights on either side of pipe

3.1.1.2.3. Brackets at first flange after SC

3.1.2. Installation/Connection

3.1.2.1. Installation with upcoming tide. DN205 to position/hold pipe + excavator to connect the ring

3.1.3. Other

3.1.3.1. No wide body catamaran pontoon under floating pipeline - extra stress on connection?

3.2. Fixed line installation

3.2.1. Shoreline on connecting structures is on wooden beams (5 high) - take care of width

3.2.1.1. JHA / TBM to be conducted with sandfield personnel.

3.2.1.2. Raise awareness of SF personnel working near(er) water and reducted space between pipes and water

3.2.2. Tight working area (narrow - east side of connecting structure No1

3.2.2.1. Test if excavator can turn with backside over separating wall in case of e.g. repairs (e.g. leakage in pipeline)

3.2.3. Avoid installing too much brackets on flange connections, before 1st time pumping water with MP

3.2.4. INTERFACE with tourists / other contractors.

3.2.4.1. Delimitation of areas

3.2.4.2. JDN HE to give way to vehicles passing on connecting structures, priority given to pipe connecting operations = delays, time consuming to drop pipe, give way and return

3.2.5. Traffic INTERFACE - Limited operations on connecting structures / dug pipes area when cruise ships are present.

3.2.5.1. Can work during nighttime hours , ensure that always minimum 12m is open , to be communicated properly on the site. Paramount to not leave a mess in the morning when cruise vessels are in the port

3.2.5.2. Planning of cruise ships.

3.2.6. Installation under the road

3.2.6.1. Active waterline, no drawing of underground services / lines / structures available

3.2.6.1.1. Manually digging before using excavator, searching for possible lines/pipes/structures

3.2.6.2. backwall of sheetpiles will have to be cut

3.2.6.3. Can only be done when no cruise vessels alongside - PROBLEM, Cruise Vessels until 21/07

3.2.6.3.1. Can work during nighttime hours , ensure that always minimum 12m is open , to be communicated properly on the site. Paramount to not leave a mess in the morning when cruise vessels are in the port

3.2.7. Installation pipe in culvert

3.2.7.1. Confirmed can be done 'anytime. Make sure that excavator(s) are at the correct side in case done during cruise vsl presence

3.2.8. Welding jobs

3.2.8.1. 3 x sniffers

3.2.8.1.1. shore connection

3.2.8.1.2. 1st road crossing

3.2.8.1.3. 2nd road crossing

3.2.8.2. strip around pipes under road and in culvert

3.2.8.3. brackets

3.2.8.3.1. at least 6 at the shore connection

3.2.8.4. Gliding piece for flange connection(s) when installing pipe in culvert

3.2.8.5. Take best flanges for underground pipes

3.2.9. sniffers to be connected to hose to avoid water on walkways

3.2.10. Storage during installation

3.2.10.1. do not bring extra parts to site until we know where to store

3.2.11. Y-piece

3.2.11.1. only blue ones?

3.2.11.1.1. Reconfirm measurement

3.2.11.2. test of valves + power packs

3.3. Floating pipeline installation

3.3.1. Channel in North

3.3.1.1. Notice to mariners

3.3.1.1.1. Concern of safe passage forwarded to ENKA's HSE Manager, to confirm further actions planned. No response yet.

3.3.1.2. Navigation buoys

3.3.1.2.1. NORTH on 15ft water depth

3.3.1.2.2. SOUTH ??? interface with

3.3.1.3. DN205 + survey vessel = GUARD vessel

3.3.1.3.1. Toolbox to be done on board of DN205 and MP with regards to this , we have a duty of care in this respect

3.3.1.4. Check where MP anchors will be in 60ft passage --> Anchor in cut?

3.3.2. Connection of Dunlops

3.3.2.1. planning to be made for all multicat works till start of CSD

3.3.3. Marking of pipeline for 3rd parties

3.3.3.1. Lights on FL

3.3.3.2. Lights on Silt screens

3.3.3.3. Search local supplier for waterproof Reflective tape.

3.3.3.4. Lesson Learned to be incorporated, to provide sufficient equipment for similar projects/locations

3.3.4. Passing under foot bridge at Pier 2 when dredging Area 4

3.4. Silt screen installation

3.4.1. 3 days for all 900m

3.4.2. Planning

3.4.2.1. Multicat planning to be defined to combine FL and MARED operations

3.4.2.1.1. 2/3 with small boats

3.4.2.1.2. 1/3 with multicat

3.5. Preparation of MP

3.5.1. Bunkering on 21/07 - TBC where?

3.5.1.1. Possible A/S? Send sketch to fuel supplier with remaining width

3.5.1.1.1. Confirm dims of bunker barge, how much it would invade into north channel?

3.5.1.2. Check to advance bunkering to 20/07, after clearance on 19/07 (only inspection, all docs are ok)

3.5.1.2.1. Custom clearance delay = Stanby cost of bunker barge

3.5.2. 21/07 we move to position with MP and connection MP

3.5.3. 20/07 latest

4. 04. Operations

4.1. 01. Dredging

4.1.1. Dredging close to structures (1Meter)

4.1.1.1. QHSSE SWP drafted sent to Survey department for revision/input. After survey update => send to MP

4.1.2. Anchor holding - Stev Sharks

4.1.3. Pick Points supply from shore

4.1.3.1. Check on consumption of PP

4.1.4. Cruise vessel traffic, critical for dredging areas 2 and 4

4.1.4.1. To take advance of windows in the Cruise ship planning, take into account time for movement of silt screens and Floating line

4.1.5. Shifting pipeline

4.1.5.1. DN95 not offloaded for financial reasons?????

4.1.5.2. Quotation of local tugboat to assist DN205

4.1.6. Configuration floating pipeline for startup: dunlops in the line or only steel floating line

4.1.6.1. decision to use dunlops or not affects the choice of 'zweefpijp' behind MP

4.2. 02. Reclamation

4.2.1. Pipe installation

4.2.1.1. Y-piece left or right

4.2.1.2. Power packs upon arrival to be sent to mechanic CSD MP

4.2.1.3. Ramp over the pipe

4.2.1.4. More length under ground for extra storage? Strips to be welded

4.2.2. Start-up MP

4.2.2.1. Pumping water to check leakages

4.2.2.2. Water not on PGW but in basin

4.2.2.3. Material on PGW

4.2.2.4. ZW bund to be shifted to the south

4.2.3. Insurvey

4.2.3.1. Bunds on +4m MSL

4.2.3.2. PGW +1.7m MSL

4.2.3.3. Theoretical boundary line for Basin Reclamation to be set-out in field (e.g. on +1m MSL with 1/6)

4.2.4. Start-up reclamation

4.2.4.1. Phase 1 - 1st reclaiming PGW to +5.5m MSL

4.2.4.2. Phase 2 - reclamation in basin with extra Y-piece to be installed. 1st Y-piece 12m pipe to be removed and to be blinded off.

4.2.5. Tide -0.2m - 0.65m MSL