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WBS ( Work Breakdown Structure ) for Engineering and Construction

Below figure is shown up to WBS (level-2) for an EPC project including shutdown scope for a petrochemical revamping project . The detail design engineering is broken down into disciplines engineering. Construction is broken down into pre-turn around and major construction.

1. The level 1 WBS elements are as follows;

2. Feasibility study

3. Basic design and engineering

4. Detail design and engineering

5. Procument

6. Construction
And Detail design and engineering is further broken down into level 2 WBS as follows;

1. Project engineering

2. Mechanical engineering

3. Process engineering

4. Piping engineering

5. Civil/Structure engineering

6. Electrical/Instrumentation engineering

Level 1 WBS element , Construction can be decomposed into level 2 WBS as follows if revamp scope is included;

1. Pre Turn Around construction

2. Turn Around construction

3. Major construction

Construction would be decomposed into level 2, 3 WBS as follows if the project scope doesn't include revamp work.

Level 2- Plant Area Name

Level 3- Offsite Fabrication/Assembly Work

Level 3-Onsite construction Work


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