Best structure for engineering project

A temporary engineering project (for example, constructing a hydropower plant, a bridge or a road) is best served by a project organization, preferably the matrix structure in which a project manager works across functional departments. For a large, one-off project a pure project structure is used.

Meaning

A project structure is a team created for a specific goal, with its own project manager, staff and budget. Team members come from various departments (civil, electrical, mechanical, finance), and the team is disbanded when the project is complete.

              [Project Manager]
     +------------+-------------+--------+
 [Civil]    [Electrical]    [Mechanical] [Finance/Procurement]
 engineers   engineers       engineers     staff

Logic

1. Focus on one goal and deadline: All resources aim at time, cost and quality of this single project.
2. Single point of authority: The project manager has authority and responsibility, avoiding delay from many bosses.
3. Interdisciplinary teams: Experts of different fields are brought together, which suits engineering work.
4. Quick communication and decisions: Short channels improve coordination of contractors, consultants and suppliers.
5. Flexibility: Can be formed quickly and dissolved after completion, so no permanent overhead (temporary project).
6. Efficient use of specialists: In a matrix, an engineer can be shared between projects.
7. Accountability: Progress, cost and quality can be tracked and the manager held responsible.
8. Examples: A project office created for Upper Tamakoshi Hydropower or a Melamchi-like project works with a project director reporting to the owner.

Limitations

• Staff may feel insecure about their next job after the project.
• In a matrix, dual reporting (project manager and functional head) can cause conflict.
• Duplicate resources in pure project form.

Despite these, it remains the most suitable for temporary engineering work.