Interior Bunds for 2005 AUD $2,000.00 Metre Kellogg Brown $2,352.0 construction of artificial & Root Pty Ltd wetland) (2006) Containment Dikes/De-watering Basins Construction Costs This report has assumed that de-watering costs provided in table 16 includes infrastructure costs for de-watering facilities (for example holding ponds). However, the report makes no attempt to provide indicative cost estimates to any degree of certainty. Therefore, for convenience, table 21 provides indicative costs for construction of containment dikes/de-watering basins. Derived estimates for an Australian context (AUD–2012) are based on the following assumptions: International prices have been converted to an indicative Australian cost based on relevant purchasing power parity indices and historical exchange rates for 1998 and 2007. The average exchange rate in 1998 was $0.60 USD/AUD (1 AUD = $0.60 USD). The average exchange rate in 2007 was $0.80 USD/AUD (1 AUD = $0.80 USD) The resulting costs estimates have been indexed to base year 2012 utilising the Australian producer price index for non-residential building construction. Range of infrastructure costs. Table 21. Type Price Currency Cost Unit Source AUD (2012) Year Containment 1998 USD $91.00 to Ha United States $752.50 to Dike $228.00 m3 Environmental $1,885.30/ha $2.60 Protection $8.70/m3 Agency (2007) De-watering 2007 USD $560,000 Based on Gannett $1,008,740.60 basins construction Fleming (2008) construction of one facility (size unknown) Elevated Conveyor Belt Construction Costs There are significant constraints for the transportation of dredged material by road transport from Abbot Point due to a wetland of national environmental significant behind the port. A possible solution (discussed at the Port of Abbot Point Risk Assessment Workshop, October 2012) could be to construct an elevated conveyor belt system across the wetland, this would enable the dredge material to be transported to a site without impacting on the wetland. Table 22 summarises potential cost estimates for various conveyor types based on the Abbot Point Development Area Multi-user Infrastructure Corridor Study (Queensland Government 2012). The cost estimates comprise the capital cost for conveyor (approximate), including mechanical, electrical, and structural works. 2012 estimates have been indexed by the Australian producer price index for non-residential building construction.
Interior Bunds for construction of artificial wetland) 2005 AUD $2,000.00 Metre Kellogg Brown & Root Pty Ltd (2006) $2,352.0 Containment Dikes/De-watering Basins Construction Costs This report has assumed that de-watering costs provided in table 16 includes infrastructure costs for de-watering facilities (for example holding ponds). However, the report makes no attempt to provide indicative cost estimates to any degree of certainty. Therefore, for convenience, table 21 provides indicative costs for construction of containment dikes/de-watering basins. Derived estimates for an Australian context (AUD–2012) are based on the following assumptions: International prices have been converted to an indicative Australian cost based on relevant purchasing power parity indices and historical exchange rates for 1998 and 2007. The average exchange rate in 1998 was $0.60 USD/AUD (1 AUD = $0.60 USD). The average exchange rate in 2007 was $0.80 USD/AUD (1 AUD = $0.80 USD) The resulting costs estimates have been indexed to base year 2012 utilising the Australian producer price index for non-residential building construction. Table 21. Range of infrastructure costs. Type Price Year Currency Cost Unit Source AUD (2012) Containment Dike 1998 USD $91.00 to $228.00 $2.60 Ha m3 United States Environmental Protection Agency (2007) $752.50 to $1,885.30/ha $8.70/m3 De-watering basins construction 2007 USD $560,000 Based on construction of one facility (size unknown) Gannett Fleming (2008) $1,008,740.60 Elevated Conveyor Belt Construction Costs There are significant constraints for the transportation of dredged material by road transport from Abbot Point due to a wetland of national environmental significant behind the port. A possible solution (discussed at the Port of Abbot Point Risk Assessment Workshop, October 2012) could be to construct an elevated conveyor belt system across the wetland, this would enable the dredge material to be transported to a site without impacting on the wetland. Table 22 summarises potential cost estimates for various conveyor types based on the Abbot Point Development Area Multi-user Infrastructure Corridor Study (Queensland Government 2012). The cost estimates comprise the capital cost for conveyor (approximate), including mechanical, electrical, and structural works. 2012 estimates have been indexed by the Australian producer price index for non-residential building construction.
gbr-dredge-material-management-appendixa.docx