Various aspects of bridge construction have been core research areas of the Chair for Concrete and Masonry Structures for many years. In addition to the research of fundamental principles, application-oriented projects are also carried out. New design principles taking into consideration the favourable properties of modern high-performance materials (e.g. UHPC) are being developed based on extensive long-term measurements (monitoring) for condition assessment of existing reinforced- and prestressed-concrete bridges along with complimentary probabilistic analysis. Effective testing methods for components such as prestressing tendons, stay cables, bearings and dampers are being developed based on extensive experimental experience. Innovative methods such as the hybrid experimental technique are increasingly being applied to study on the laboratory scale the distinct non-linear behaviour of individual members and their interaction with large, complex structures with respect to stability and durability as well as to examine condition assessment and ease of replaceability.