Berlin, April 1st – The Duncker Bridge in Prenzlauer Berg is set to undergo extensive reconstruction and will be completely closed to traffic starting today, April 1st. The project is anticipated to continue until 2028, according to an announcement from the transport authority.
Complete Closure and Diversion Routes
The closure spans Dunckerstraße, specifically between Ahlbecker Straße and Kanzowstraße. Authorities have confirmed that a diversion will be clearly signposted to guide motorists and pedestrians around the construction area. Despite the significant undertaking, adjacent school and residential buildings, as well as the Dunckerclub, will remain accessible throughout the construction period.
Risk of Stress Corrosion Cracking Necessitates Rebuild
The decision to rebuild the bridge stems from a critical structural concern: the risk of stress corrosion cracking. The Duncker Bridge, constructed in 1976, utilizes Hennigsdorf prestressed concrete, a material also found in the collapsed Carola Bridge in Dresden. This design is susceptible to stress corrosion cracking, where the combined effects of stress and corrosion can lead to sudden and catastrophic structural failure, as tragically observed in Dresden.
The bridge is a vital crossing, spanning two S-Bahn tracks and two mainline railway tracks, underscoring the importance of its structural integrity and the necessity of this reconstruction project.
Phased Reopening and Project Timeline
According to the local authority, the reconstruction will be carried out in phases. Once the structural work is completed, pedestrians and cyclists are expected to be granted access to the new bridge as early as the third quarter of 2027. The full completion of the new bridge is projected for the third quarter of 2028.
This multi-year project aims to ensure the long-term safety and functionality of the Duncker Bridge, mitigating the risks associated with its original construction materials and design.
Source: https://www.berlin.de/en/news/10294039-5559700-duncker-bridge-to-be-closed-from-1-april.en.html
