**4.1 Content and project timeline**

*Risk Management in Construction Projects*

• Running, maintaining, and monitoring the status of the water infrastructure intended for protection against detrimental effects of water on the influence

• Implementation of extraordinary measures during periods of increased hazard levels due to the detrimental impact of the waters on the influence area of

• Maintenance of water areas and acquired areas on the influence area of energy

• Providing sufficient quantities of water on the influence area of energy utilisa-

• Flood safety for populated areas, protection of agricultural areas and forests,

• Passage for water organisms, spawning grounds, and other habitats and

The main stakeholders involved in the implementation of the HPP reservoir are

• The Government of the Republic of Slovenia, ministries with their bodies, and

• Other stakeholders (local communities, inhabitants, landowners, and pressure

The contractor appointed a project team for the preparation and management of the project of the erection of the HPP reservoir. The project manager and team members received the following assignments: preparation of technical documentation, preparation of works, acquisition of lands, and maintenance and supervision of the entire project. Contractors for the execution of works were hired for the

A project of the erection of a reservoir for this hydroelectric power plant was selected because this was a big and important infrastructure project in Slovenia. This project is especially suitable for presentation of the proposed method of risk management due to its size and intervention in space, and the authors helped the contractor by project preparation especially in creating a project management plan.

The investment value of the project amounted to EUR 140 million.

area of energy utilisation of the river's water potential.

energy utilisation of the river's water potential.

utilisation of the river's water potential.

flood irrigation, and firewater catchment.

• Development of roads and other infrastructure.

protection of landscape and cultural heritage.

• Contractor for project preparation and management

tion of the river's water potential.

• Recreational areas and cycling paths.

• Contractors for the execution of works

• Sediment depositions.

• Investor with co-investors

administrative units

execution of individual activities.

groups).

as follows:

**8**

The project team broke down the project's work content according to the WBS principle into the following phases: project preparation, designing, acquisition of permits, call for tender for the reservoir, dam house erection, and reservoir erection. For each phase, the team defined the necessary activities and linked them to a project network diagram. The network diagram links 242 activities. This is relatively little given the scope of the investment; however, the timeline here is only meant for the management of the investment and not for the operative management of the works of the project. The contractors prepared their own detailed timelines for the operative execution of the works of the project, which were fully harmonised with the project's timeline.

A project time analysis revealed that 1928 days are needed for the execution of the project of the erection of the HPP reservoir, with the beginning of the project scheduled for 1/3/2012 and the completion for 10/6/2017. The term of completion is very important, since the test operation of the HPP depends on it. **Figure 4** shows the project's timeline, wherein only the activities of the first phase are indicated.
