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Saraji Road, Phillips Creek Bridge Replacement

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CLIENT

Harrison Infrastructure Group

COMPLETED

August 2019

LOCATION

Saraji Road, Dysart

Isaac Regional Council (IRC) had identified the need to replace Phillips Creek Bridge located on Saraji Road approximately 9.5km north of Dysart. This link is a key link between Dysart and Moranbah that provides access to several coal mines and connectivity to the wide State Road network. 

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IRC engaged Harrison Infrastructure Group (HIG) to undertake the detailed design for a new bridge located on the western side of the existing bridge, as well as approximately 700m of new road to the south, and 900m to the north of the new bridge to tie into the existing road pavement. Subsequently HIG engaged Geleon to prepare the P90 Total Project Cost Estimate for the works in accordance with Transport and Main Roads (TMR) Project Cost Estimating Manual

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A first principles cost estimate was prepared that determined Construction Contractor's Costs, Principal's Costs, considered Planned and Unplanned Risks, Escalation and utilised @Risk software to perform a Monte Carlo simulation and ascertain the Total Project Cost at 50 and 90-percentile likelihoods. Estimated costs were then separated into Capex and Opex cost elements in accordance with Section 8 - Work Breakdown Summaries of the Transport Infrastructure Cost Classification Guide for Recording Expenditure - Implementation Guide for the TMR Infrastructure Asset Accounting Policy and Cost Breakdown Structures. 

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