U3, viaducts Graskeller and Mönkedammfleet

Year of completion


Type of intervention


Contracting authority

Hamburger Hochbahn AG



Type of structure

Railway bridge

Construction method

Falsework / support structure, temporary accommodation frame

Construction material of superstructure

Reinforced concrete, steel

Total length

48,00 m

Type of structural system

Deck bridge

Span lengths

16,00 m + 16,10 m +16,30 m

Construction width

7,60 m

Services Grassl

Basic assessment, preliminary design, detailed design, planning for approval, construction planning, preparation of tendering, assistance for tendering, manufacturing and quality control, verification analysis, damage analyses, monitoring