Wide Span Girder Bridge 

Pedestrian Bridge Crossing the Neckar River

Year of Construction: 2017

Client: Municipal Neckartenzlingen


Length: 96,00 m

Width: 3,00 m


Ingenieurbüro Blankenhorn (Infrastructure planning)

Schaffitzel Holzindustrie GmbH und Co. KG (Contractor Superstructure)

Gottlob Brodbeck GmbH & Co. KG (Contractor Abutment, Infrastructure)


Burkhard Walther Architekturfotografie


Main structure consisting of trepped block laminated glulam beams that follow a gentle S-shape. Railing including horizontal stainless steel wires and handrail of acetylated timber. Decking made of pre-cast concrete slabs with anti-slip surface.

Our services: Feasibility study, design planning, structural planning, engineering, detailed calculation, tender procedure and site management - Service phases 1-9 according to German HOAI


To develop and improve the Neckar Valley cycle path this bridge crosses the Neckar with an approximate length of 100m. With a width of 3.00m it provides enough space for pedestrians and cyclists. The S-shaped design is oriented to the connecting infrastructure. The considered load cases of 5,0kN / m² is in accordance with DIN 1991-2. The chosen design in form of a timber bridge with spans of 25,65m / 44,50m / 25,65 follows in ground plan an S-shape. The major span is straight at an angle of 85 gon above the Neckar. Both flood plain areas are curved in plan using a radius of 65,25m. On the Eastern side of the river the arc extends to the north, on the west to the south. For an efficient utilization of material the cross-section is graded according to the stress usage. The continuous beam creates moment diagram with zero crossings in the main span, which are designed as so-called Gerber hinge. In this way the design achieves sensible transport dimensions and a simplified assembly.

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