The Weser crossing in the course of the A 281 federal highway serves as a corner connection between the A 1 and A 27 highways northwest of Bremen. The core section is being constructed as an approx. 700 m long immersed tunnel using the floating and immersed method between the Gröpelingen and Seehausen junctions, supplemented by cut-and-cover tunnel sections. The I/O tunnel elements, each approx. 120 m long, are being manufactured in a dry dock in Bremerhaven. The actual tunnel body is adjoined on the north side by an approximately 500 m long enclosure as a protective gallery against the adjacent steelworks with slag dump. The tunnel is designed as a two-cell reinforced concrete rectangular frame as a water-impermeable concrete structure (waterproof concrete). Each cell has a clear width of 9.54 m and a clear height of more than 5.10 m.

During the excursion, the first sections of the land-side excavation pits can be viewed in Bremen, as well as the embankments for the lowering channel in the Weser. Depending on the progress of construction, it may also be possible to view the first two tunnel elements 5 and 4, which have already been moved to Bremen.

Guiding is only available in German.

IMPORTANT: The Weser Tunnel near Bremen is approx. 130 km away from Messe Hamburg. This results in a journey time of approx. 1:30 hours. It is planned to spend approx. 2:30 hours on site. Please allow for a departure from Munich at 8:00 a.m. and a return at approx. 1:30 p.m. when planning your journey.