U4, extension, eastern HafenCity
Year of completion
2012
Type of intervention
New construction
Contracting authority
Hamburger Hochbahn AG
Location
Hamburg
Type of structure
Railway tunnel
Construction method
Sealing slab and slurry wall construction method
Total length
920,00 m
Construction width
11,00 m
Construction material
Reinforced concrete
Services Grassl
Basic assessment, preliminary design, planning for approval, feasibility studies
Services provided by engineering consortium