The double-helix design was inspired by the DNA structure, allowing for independent traffic flow on separate staircases.
The tower features 340 steps in total to reach the top platform.
It is engineered to withstand high wind loads, which are significant at the exposed hilltop location.
The project was funded through a regional development initiative and local crowdfunding efforts.
The structure's open-grid design allows for wind passage to minimize structural vibration.
The Schönbuchturm is a 35-meter-high steel observation tower featuring a double-helix spiral staircase system. It stands on the Stellberg hill within the Schönbuch forest in the Herrenberg district. The structure consists of three independent staircases that do not intersect, separating ascenders from descenders. Visitors reach a viewing platform at a height of 30 meters, which offers panoramic views of the Swabian Alb and the Black Forest. The tower is constructed from 140 tons of galvanized steel. It was opened in 2018 to enhance the regional trail network. The base of the structure is approximately 580 meters above sea level.
The highest platform looking directly downward to capture the geometry of the double-helix stairs.
Bring binoculars to identify distant landmarks like the peaks of the Black Forest or the Swabian Alb.
Check local weather reports before visiting, as high winds may make the exposed platform uncomfortable.
Wear sturdy, comfortable footwear suitable for the surrounding forest trails.
Attempting to climb during severe thunderstorms or high-wind warnings when the structure may be closed.
The tower may be closed temporarily during severe winter weather or high-wind events.
Maintain one-way traffic flow on the dedicated ascent and descent staircases.
