
Replacement construction of a barrier-free cycle and footpath bridge over the Neckar in Tübingen
Foot and cycle path bridge ‘Lustnau’
Description
The existing ‘Bankmannsteg’ bridge in Tübingen did not fulfil the increased requirements in terms of accessibility and cycle traffic. As part of the city’s cycle traffic concept, it is now being replaced by a modern new structure that connects Gartenstraße with Bismarckstraße – on an important priority cycle route.
The new bridge follows a symmetrically curved S-shaped layout that blends harmoniously into the topography and enables barrier-free ramp connections. The design consciously emphasises sustainable timber construction in an urban context.
The bridge is designed as a protected timber bridge in accordance with DIN EN 1995-2/NA. Two curved glulam beams form a three-span system with a total length of around 69.40 metres. The cross-section heights vary depending on the static load. A Gerber joint enables segmented production and simple assembly. Steel frames connect the main girders.
With a maximum gradient of 6 %, the bridge fulfils the requirements for barrier-free construction. A covering of precast concrete elements protects the structure from the weather. The railing consists of flat steel posts with stainless steel cable mesh infill and a handrail made of Accoya wood with an additional stainless steel tube for barrier-free use.
Client
University City of Tübingen
Year of construction
2025
Dimensions
Length: approx. 69.40 m
Span: approx. 14.00/41.40/14.00 m
Width: approx. 5.502 m
Planning
Substructures: Boorsma, Drachten
Timber construction: Ingenieurbüro Miebach
Architectural planning: Laos, Groningen
Construction
curved block girder bridge with variable cross-sections, pavement made of precast concrete slabs with separate carriageway for cyclists and pedestrians, bridge deck with heating for safe use in all seasons
Our services
Project and structural planning bridge construction LPH 1-8