B433, Bypass Airport Hamburg - Fuhlsbüttel, Krohnstiegtunnel




Freie und Hansestadt Hamburg, Landesbetrieb Straßen, Brücken und Gewässer (LSBG)


New construction

Building Type

Road tunnel

Building Location


Building Name


Building Technique

Wall-floor method

Building Construction Description

New construction of the Krohnsiegtunnel Süd as waterproof construction, Enlargement of the existing troughs including partial demolition of the walls, Pressurised resistant connections, Waterproof concrete construction with a length of 10.50 m, Jointless concreting of the complete section, Completion in a dry construction site without lowering of the ground water

Building Material

Reinforced concrete, masonry

Building Overall Length 755,00 m
Construction Width 12,50 m
Services: Planning

Preliminary Design

Detailed Design

Services: Supervision

Technical Examination

Consultant Services for the Client

Additional Services

Design in cooperation with the Hamburg construction authority, Creation of the structure file