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Fremantle Inner Harbour Deepening

2. Required Project Outcome. To enable the port to receive and unload container ships having drafts up to 14m in a safe and efficient manner

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Fremantle Inner Harbour Deepening

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    1. 1 Fremantle Inner Harbour Deepening

    2. 2 Required Project Outcome To enable the port to receive and unload container ships having drafts up to 14m in a safe and efficient manner        

    3. 3 Project Scope Re-construction of Berth 10. Replacement of fenders on Berths 4 to 9.    Installation of sheet-pile wall on Berths 4 to 9.        Installation of ‘strong points’. Construction of breakwater for reclamation area.    Dredging of the Deep Water Channel, Entrance Channel and Inner Harbour. Placement of dredged material into reclamation and offshore disposal areas.        

    4. 4 Civil & Marine Works Package This Package comprises the following works: (a) Construct 18 No. ‘strong-backs’ to the rear of Berths 4-9 comprising piled concrete structures, tie backs and pavement works, installation of circular clutched sheetpile to the front of Berths 4-9 and replacement of fenders along Berth 4-9; (c) Demolition, disposal and re-construction of existing Berth 10, comprising steel tubular piling, sheet piling, precast and in-situ concrete deck structure, supply and installation of crane rails, fenders, bollards, ladders and other wharf hardware; and (d) Supply of material labour and plant to construct a seawall at Rous Head approx 1000m in length.

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    10. 10 Dredging Works Package (a) The dredging of Fremantle Inner Harbour and Entrance Channel to a depth of RL-14.7m LWMF with a berthing pocket along Berths 4-9 dredged to RL-15.0m LWMF to 50.0m from the wharf face. (b) The dredging of sections of the outer Deepwater channel to a depth of RL-16.5m LWMF on straight sections and RL-18.0m on the bend. (c) Filling of reclamation area at Rous Head with dredged material. (d) Placement of surplus dredge material into an offshore spoil disposal area in Gage Roads. (The total dredged material from all areas is approx. 3.1 million m3 with approx. 2.0 million m3 to be placed in reclamation with the balance placed in the Gage Roads dumping ground.)

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    14. 14 Project Delivery For the delivery of this project, Fremantle Ports has chosen the Early Contractor Involvement (ECI) model. ECI Contractors were engaged for each Package of Works to work jointly with Fremantle Ports during the ECI Phase. Contractors were engaged to finalise design and constructability of the works and to develop construction cost estimates for each of the packages of work. The construction phase will then be let as lump sum contracts.

    15. 15 The Inner Harbour Deepening Project’s ECI Phase commenced in September 08 Two (2) ECI Contractors involved - Thiess Georgiou Joint Venture (TGJV) for the Civil and Marine Works Package and - Boskalis Australia (BK) for the Dredging Works Package.

    16. 16 Benefits of ECI Benefits of the ECI procurement method foreseen for the IHD project were: Collaborative focus on stakeholder, community and customer needs. Value engineering and ‘ constructability reviews’ to be undertaken jointly during the ECI Process. Risk identification and mitigation strategies workshopped during the ECI Process with involvement of both contractors. Smaller project management team allowing more efficient use of limited resources. Greater certainty of positive commercial outcomes for both parties

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    20. 20 - an alternative fender design resulting in a large cost savings and program savings – a key project objective; - recommended trial pile driving that were carried out during the ECI Phase and resulted in confirmation of pile design performance, founding depths and pile hammer selection thus resulting in certainty in pricing and minimisation of risk associated with the piling. Noise monitoring carried out during the trial also reduced costs and minimised risks; - recommended trial sheet pile extraction works that were carried out during the ECI Phase and resulted in redesign of sheet pile works in Berth 7 & 8, replacing the need for specially fabricated “king piles” with standard sheet piles used in the remainder of the works; - selection of suitable office areas and lay-down locations to maximise productivity of work force.

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    27. 27 Did the ECI process provide value? The benefits of the ECI methodology achieved in respect to Value Management were: Risk identification and mitigation strategies workshopped during the ECI Process with involvement of both contractors. The ECI Process and the risk management processes resulted in risk allocations varying between 1.5% and 5% of the Contract Price. Smaller project management team allowing more efficient use of limited resources. The ECI Phase costs was approximately 1.43% of the overall project budget. Contract prices are within the FP budgets for each package of work. Greater certainty of positive commercial outcomes for both parties.

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