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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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  2. I was also looking for it.. Thanks a lot

  3. Any samples of Refinery Revamp Shutdown Planning.


  4. Hi, nice read! Very informative and concise. Do you have the sources used for this report?

  5. thanks for your article,helps me a lot.


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