Client: Victorian Regional Channels Authority

Project Location: Geelong, Australia

Completion Date: Feb 2016

OMC International DUKC Dredging Efficient port Chanel design Shipping Bulk carriers
A tanker in Port Phillip Bay using OMC's GPS onboard measuring dynamic vessel motions.

About the Client

The Victorian Regional Channels Authority (VRCA) began operations on 1 April 2004. The VRCA was established to manage the commercial navigation of the channels in Geelong port waters and to oversee the Channel Management for the Port of Portland and Hastings. The Authority was established by the Victorian Government under the Port Management Act 1995 and the Transport Integration Act 2010.

Overview

OMC worked alongside the Victorian Regional Channels Authority to deliver an operational DUKC® system for the Port of Geelong. Vessel motion measurements were carried out on 6 ships, including some of the biggest that had ever visited Geelong. The development of hydrodynamic and forecasting models helped improve safety and efficiency, and has increased vessel drafts at the Port.

The Business Challenge

  • Port started receiving larger vessels but was unable to assist the larger vessels
  • Limited restrictions on vessel drafts in the channel
  • VIVA were looking to safely bring in more cargo to boost viability of the refinery
  • Port did not have large amounts of money to dredge

The Technical Challenge

  • Port of Geelong channels are very restricted in depth and width
  • They have a unique tidal condition in Corio Bay with a seiching effect and rapid changes in water levels due to  weather systems
  • Significant squat effect in the Geelong channels
  • Manoeuvring challenges in the tight city bend of the channel
  • Shipping of hazardous cargo required an extremely safe solution

The Solution

  • Installed a DUKC®
  • Created a water level model in Corio Bay to manage the seiching effect and incorporated forecasts from our alliance partners (MetOcean) for accurate water level predictions
  • Provided full-scale measurements on 6 vesse;s at the Port of Geelong and combined with our extensive database measurements and developed a custom squat model (over 500 ships)
  • Onboard chart overlays for the pilots on their PPU’s
  • Worked closely with pilots to ensure the manoeuvring in the channel is safe

The Outcomes

The Port of Geelong now uses world best practice for managing safety and efficiency of UKC. OMC provided pilots with scientific up-to-date UKC information on their PPU’s to assist decision making and continue to provide record shipments.

The Benefits

  • Record-breaking vessel drafts and sizes
  • For every 10cm of draft amounts to $1M extra revenue per year
  • To date, $2M per year has been generated by 1 port user
  • $2M per year is for inbound vessels – inbound vessels make money
  • Safer
  • Accurate Data
  • Evidence based decision making

The DUKC® technology has enabled us to load larger ships which improves the global competitiveness of Victorian grain as well as our operational efficiency.

Craig Cochrane, GrainCorp