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PORR wins major order in Hanover

The bridge over Hildesheimer Straße as part of the Südschnellweg expressway. © NLStBV Franz Bischof

Rehabilitation will start on the historic B3 traffic axis in Hanover from 2023. The Lower Saxony state authority for road construction and transport has awarded the tender for the first major section of the Südschnellweg expressway modernisation to the bidder consortium of PORR/Stump-Franki Spezialtiefbau/Hagedorn; the contract is worth around EUR 400m.

“The Südschnellweg is enormously important for Hanover as a traffic artery”, says PORR CEO Karl-Heinz Strauss. “It is used by tens of thousands of vehicles every day. Our job is to refurbish it under contract to the state roads authority and make it fit for the future so that traffic can flow safely and so the city gets some relief. After all, mobility is a key challenge for urban areas in particular”.

One important part of the rehabilitation is replacing a 69-year-old bridge, whose remaining useful life is severely restricted in some areas. The project is worth around EUR 400m.

Road tunnel to replace bridge

The Südschnellweg with its two lanes in each direction was built in 1954, since when it has served as the sole efficient and flood-free connection from east to west in Hanover’s south. In the course of the rehabilitation, the current bridge over Hildesheimer Straße and Schützenallee in the Döhren district will be replaced by an underpass. To facilitate this, the consortium will first erect a 940-metre-long temporary bridge parallel to the elevated road before demolishing the existing bridge. A 1,100-metre-long road tunnel with ramp structures will then be built as an underpass beneath Hildesheimer Straße and Schützenallee.

Claude Jeutter, Managing Director of PORR Deutschland, says “We are proud to showcase the capabilities of our teams in structural engineering and special civil engineering, together with those of our consortium partner, in the state capital of Lower Saxony”. And Martin Beese, Managing Director of Hagedorn Hannover GmbH, adds “We are delighted to be part of this important major project and for our competencies and experience to win out”.

Facts and figures at a glance

Project type: Structural engineering, special civil engineering
Scope of services: Bridge construction and tunnelling
Client: Lower Saxony state authority for road construction and transport
Contractor: PORR GmbH & Co. KGaA, Stump-Franki Spezialtiefbau GmbH, Hagedorn Hannover GmbH, PORR S.A., PORR Bau GmbH
Contract volume: EUR 400m gross (consortium)
Construction start: 2023

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