
Eye-catcher above the Rhine Valley
The spectacular view of the Rhine Valley from the plateau of the steep Loreley rock attracts numerous visitors all year round. Only a few hundred metres from the viewing platform is the Loreley open-air stage, built in 1939. Our architects carefully updated the ageing, listed site and developed a new tent roof construction for the stage that meets today’s requirements of modern concert technology. The roof does not obstruct the view over the Rhine and blends in gently with the topography of the site.


Gradual redesign
As the tent roof construction of the stage from the 1970s was noticeably outdated, a tendering procedure was launched for the conversion and modernisation of the entire site, for which we were awarded the contract as general planners. The objective of the redesign was to upgrade the open-air stage technically and operationally to facilitate future events with up to 15,000 visitors. Due to the UNESCO World Heritage status and the protection of historical monuments, the interventions in the topography and the existing building fabric had to be kept to a minimum. All interventions had to be coordinated with the State Monuments Office and more than 30 organisations representing public interests had to be involved and consulted. Another requirement was that the project had to be realised without impairing the concert programme. As a result, the work had to be carried out in several construction phases outside the concert season from October to the end of May.


The stage construction
The focus of the first conversion phase was the construction of the new stage roof. Having dismantled the dilapidated and too small existing structure, the new membrane roof now spans the entire stage area, the rear stage surround, and parts of the orchestra pit.
Three steel arches form an elegant, filigree construction, a shell-shaped skeleton with a light-coloured membrane cover. Two of the arches intersect at the front of the stage, while a third arch stays the construction to the rear. It therefore complies with the specified maximum height of 15 metres from the top edge of the stage floor. Striking is the fact that the new roof, although – or perhaps because – it blends almost naturally into the topography, has a particularly high, unique recognition value.


Materiality and other components
The objective was to recreate a coherent experience of the open-air theatre site. For this reason, the architects restricted their choice of materials to two that match the surrounding landscape with regard to both their colour and their coarse texture. Timber was used for the structural and façade materials, while all the interventions in the outdoor areas are made of Corten steel, from the staircases to the wheelchair access levels and the lighting. The stage roofing with its membrane construction is the only clearly recognisable special feature.


All secondary buildings have been designed as simple structures. In line with this, the new entrance building is a timber construction with cross-laminated timber walls on a reinforced concrete floor slab. The facade is clad with vertical wooden slats with a pre-greyed finish. Selectively placed Corten steel elements, such as the staircase to the upper floor, echo the materiality of the open space design.
Particularly noteworthy is the comprehensive and detailed accessibility of the site. Separate entrances, escape routes and two platforms with an unobstructed view of the stage were built to provide sufficient space for up to 50 wheelchair users including carers. Both platforms are accessible via ramps. The reinforced concrete structure is clad with Corten steel panels. By means of matching colours and materials the secondary buildings and open spaces blend into the existing fabric while maintaining a respectful distance. With its high recognition value, the new stage roof could become a new landmark of the Loreley Rock.

Project information
Name: Open-air stage Loreley
Competition 2011: 1st prize VgV procedure
Project type: Renovation of the listed Loreley open-air stage area and development of a new tent roof construction.
Location: Bornich
Client: Stadt St. Goarshausen
Completion: 2017, 1st construction phase
Collaboration: MSIng GmbH Matthaei Schotte Ingenieure, Stuttgart/DE (supporting structure) / Pfrommer und Roeder Freie Landschaftsarchitekten BDLA IFLA, Stuttgart/DE (outdoor facilities) / Schneider Metallbau, Kastellaun/DE (metal construction) / Ingenieurbüro Wörtz (electrical planning)
Project team: Angelika Babucke (project management), Sabrina Bauer, Yussuf Kaptanoglu (project management), Suna Konyalıoğlu, Laura Palamattam
Images: Achim Birnbaum / Aerial view: Thomas Frey

