Valryggen Bridge in Norway: solution for efficient parapet concreting

The bridge is a concrete box-girder structure with a total length of 387 m, distributed across seven spans, crossing the Vefsna River south of Trofors. The main span reaches 60 m, and the deck has a depth of 3.6 m. With both horizontal and vertical curvature, the project required high precision and rigorous technical planning.

Once the main sections were concreted, the client requested an efficient solution for casting the 600 mm-thick side parapets. Given the length of these structures, the system needed to provide high performance, ensure safety throughout the process, and allow continuous progress on site.

ULMA proposed a 20 m-long MK parapet form carriage as the most suitable solution for this challenge. Its modular configuration allowed precise execution of the parapet walls while reducing assembly, adjustment, and stripping times. The high-load-bearing-capacity rail and wheel movement system enabled the unit to move along the deck without complex auxiliary operations, maintaining a steady and safe working pace.

ULMA’s participation in the Valryggen project highlights the importance of reliable formwork systems and technical solutions capable of responding to the challenges posed by large-scale infrastructure, ensuring quality, precision and efficiency at every stage of construction