New bike path on Xaver-Habner-Brücke: Modernization ensures security!

New bike path on Xaver-Habner-Brücke: Modernization ensures security!

Straubing, Deutschland - in Straubing is the Xaver-Havener Bridge, which has been the important traffic artery since it was built in 1985, now fit for the future. With a targeted expansion, the increased bicycle traffic is taken into account, and thanks to the innovative building material and clever engineering. The conversion, which took place between 2022 and 2023, was necessary because the bridge originally designed for motorized traffic did not have any lanes, which are increasingly in demand. Another obstacle was the preloaded construction, which made a classic expansion impossible. So the lane moved 50 cm inside and was at the same time narrowed, which could now create space for a 2.50 meter wide walking and bike path.

The district office Straubing-Bogen acted here with a view. The challenge of not only adapting the bridge to today's transport requirements, but also doing this without overloading the structure, was mastered with flying colors. Exciting technical solutions were in demand, which ultimately relieved the structure. A new cornice head was made and widened from 35 cm to 50 cm to enable this area -like profit of one meter. This shows how important it is to modernize existing bridges sustainably and thus create a safe foot and cycle path infrastructure.

Lia ass light concrete brings advantages

A crucial element of the renovation was the use of LIPOR-ARTEGEMENTE (type LC30/33 D1.6). Around 500 cubic meters of this material, which has 35% less weight compared to conventional concrete, were used. This innovative building material has numerous advantages, not only in terms of weight savings, but also with regard to the material properties. It is frost and thousand salt resistant as well as corrosion-resistant.

The lightweight concrete was applied in layers of 16 to 25 cm and carefully compressed. In order to ensure the surface slip resistance, special broom painting surface processing was used. This precise handling was necessary because the work took place at lofty heights and the greatest care was required. The renovation work was carried out by Geiger Bauwerksanierung GmbH & Co. KG from Warngau, while the delivery of the light concrete from Heidelberg Material, Burglengenfeld plant, took place.

a profit for all road users

The reopening of the new cycle and sidewalk connection on the Xaver Haborian Bridge in February 2024 not only has a practical benefit, but also an important symbolic meaning. It shows that dealing with existing infrastructure can not only be about maintaining, but also about adapting modern requirements. The bridge is a prime example of how well thought -out engineering and innovative materials can be used in order not only to increase traffic safety, but also to find sustainable solutions.

With these measures, the Xaver-Havener Bridge is ready to meet the requirements of the future. In this way, cyclists and pedestrians can look forward to a safe crossing of the Danube, while the strain on the original structure has been reduced. engineers impressively show how modern techniques can adapt older bridges safely and efficiently .