With its “one-stop shop” strategy, PORR takes a holistic approach. As one of Europe’s leading construction companies, it combines expertise in infrastructure, engineering, specialist civil engineering, building construction and transport infrastructure to deliver integrated project solutions – particularly for complex large-scale and transformation projects.

Complexity as the new normal

Large-scale projects in the fields of energy, transport or urban infrastructure are today characterised by a multitude of parallel requirements: technical interfaces, approval processes, ESG criteria, stakeholder management and the ongoing operation of existing facilities. As complexity increases, so do coordination efforts, interface risks and the likelihood of cost overruns.

“What places the greatest burden on clients today is not the technical challenge, but the coordination effort between the parties involved. Complex infrastructure projects can only be successfully realised if planning, execution and operation are considered together from the outset,” says Meik Müller, Managing Director of Infrastructure at PORR in Germany. “The earlier execution expertise is brought in, the more robust the cost, schedule and quality targets become.”

Pooling responsibility, reducing risks

Integrated project management deliberately relies on clear structures: a single point of contact, interdisciplinary project teams and a shared definition of objectives. Planning and construction are closely coordinated from an early stage, minimising interfaces.

One example of this is the refurbishment of the B3 South Expressway in Hanover. This historic transport artery has been undergoing extensive modernisation since 2023. A joint venture comprising PORR Ingenieurbau, PORR Spezialtiefbau and Hagedorn is carrying out the first construction phase of an infrastructure project worth around €400 million on behalf of the Lower Saxony State Authority for Road Construction and Transport.

The core of the project is the replacement of a dilapidated bridge with a road tunnel approximately 1,100 metres long. To maintain traffic flow during the construction period, a temporary bridge almost one kilometre long will first be erected.

“This project is a prime example of how integrated teams can keep planning and construction processes on track even with traffic flowing and in a challenging inner-city environment. By offering everything from a single source, we create a seamless process that combines efficiency and quality,” says Müller. “This integration is crucial, particularly for large-scale inner-city projects with complex ground conditions and ongoing traffic.”

Alliance and partnership projects

The partnership-based approach proves particularly effective in alliance and partnership projects, especially within the framework of Integrated Project Management (IPM). Right from the early stages of the project, close collaboration on planning, work preparation, budgeting and risk management ensures a shared understanding among all parties involved. This leads to a clear alignment of interests in line with the partnership principle and the guiding principle of ‘Best for Project’. Alliance and partnership models enhance traditional project management with a clear, cooperative structure: clients, designers and contractors work closely together from the outset and share responsibility. Digital tools such as Building Information Modelling (BIM) promote transparency, controllability and well-informed decision-making across all project phases.

“For us, alliance or partnership projects in the context of integrated project management mean sharing responsibility – for both opportunities and risks,” explains Müller. “This speeds up decision-making processes, reduces traditional conflicts of interest and creates a shared understanding right from the early stages of the project.”

Conclusion

Complex infrastructure projects require integrated project structures. They offer clients the opportunity to better manage growing technical, regulatory and organisational requirements in large-scale and transformation projects that demand a high level of coordination. With its “one-stop shop” strategy and experience in integrated project management, PORR positions itself as a high-performing partner for challenging infrastructure projects in Germany.