Grontmij has been involved in the design of a number of tunnels and other heavy civil structures. Our recent design experience includes the detailed design of cut and cover tunnels, jacked structures under railways and of heavy temporary works.

Solutions to technically complex projects 

This includes multidisciplinary design management of below ground civil works, mechanical and electrical works and surface works for design and construct contractors.

We deliver technically complex multidisciplinary solutions, which are tailored to the needs of the project.