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International Infrastructure Project Cost Estimating Work Breakdown Paul Hewitt, International Project Estimating Limited Introduction Construction Cost Estimating Work Breakdown Structure (WBS) The term WBS has become a common term in all fields related to Cost Engineering including Construction Cost Estimating, Scheduling and Project Cost Control. A well defined WBS is the backbone of good Construction Estimating Software and can take several forms including the breakdown of items within an estimate, the layout of groups within a schedule or the rollup of accounts within a cost report. It usually starts with a client’s desire to breakdown a tender into definable pay items, followed by the project manager’s wish to schedule activities of …show more content…

The current CSI MasterFormat ™ 2004 Edition [1] comes closest to covering all the scope of work found in the construction of Building Facilities and Site Work. It falls short in addressing the unique requirements of estimators, schedulers and cost engineers in identifying all phases of work included in major Infrastructure work such as Build Own and Transfer (BOT) projects. This Standard Work Breakdown attempts to format the project into a multi-level WBS suited to estimate, schedule, track cost and measure performance on international infrastructure projects. The breakdown is also designed to facilitate the data transfer of a standard work breakdown between common estimating, scheduling and cost control software applications. The International Infrastructure Project Work Breakdown Structure (WBS) The following paragraphs outline the various sub-projects and phases within the Civil Infrastructure WBS. The Sub-Projects within a Civil Infrastructure Project Life Cycle Traditional work breakdown structures in the past have only identified the Construction Divisions within a project. This proposed work breakdown includes all phases within the life span of the project cycle, including Development, Engineering, Operations, Maintenance, Transfer and Risk.

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Project Capital Cost

1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 2.4 2.5 3.1 3.2 3.3 3.4 3.5

Overhead Construction Equipment Engineering & Design

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