The “Pont Neuf” of Aarau

Building design
New Aare bridge Photo ©Stefano Graziani

New Aare bridge Photo ©Stefano Graziani

The new Aare bridge, designed by the Basel office Christ & Gantenbein in collaboration with the planning engineers WMM-Ingenieure, Henauer Gugler AG and August + Margrith Künzel Landschaftsarchitekten.

The new Aare bridge, designed by the Basel office Christ & Gantenbein in collaboration with the planning engineers WMM-Ingenieure, Henauer Gugler AG and August + Margrith Künzel Landschaftsarchitekten, is not only an important access point in the town of 20,000 inhabitants in the Swiss canton of Aargau.

The bridge crosses the Aare and connects the old town on the south side with the Scheibenschachen district on the north side. Its special design makes it a new landmark of the city, which many people are currently discovering for themselves. Artistic cyclists, for example, are practising their acrobatic exercises underneath the bridge in the piers with their elliptical, expressive openings. The project name of the Aare bridge is “Pont Neuf” and many thousands of cars and hundreds of buses cross it every day to cross the river.

The design of the “Pont Neuf” follows the traditional type of segmental arch bridge. It is characterized by large clear spans. The entire bridge body has no joints and looks like a huge monolithic sculpture. The classic massive piers, such as the previous bridge from the middle of the 20th century, have been transformed into more delicate, expressive forms. The masses of the piers dissolve into a series of elliptical recesses, as can be clearly seen when crossing underneath the bridge. These inner contours are clearly visible from the promenade, which was also redesigned as part of the construction work. With a length of 119 meters and a width of 17.5 meters, the bridge offers two lanes, sidewalks on both sides and cycle paths. Where the bridge spans the riverside path, large openings offer a view of and across the water. Great importance was attached to the design of the concrete surface: The precisely structured exposed concrete follows an arrangement that gives the bridge an almost textile look and is reminiscent of a curtain from a distance.

While traffic is moving on the bridge, the existing riverside promenades are being reinterpreted and upgraded: On the Old Town side, a spacious, urban promenade is being created with a square-like recreation area and shady trees. On the northern bank, the bridge will be accompanied by green flower meadows and natural riverbank vegetation. The aim here is to significantly increase the quality of stay. The “Pont Neuf” was commissioned by the canton of Aargau and the city of Aarau. According to various media reports, the costs amount to around 40 million Swiss francs. The bridge architecture was designed by a five-person team from Christ & Gantenbein, including Emanuel Christ, Christoph Gantenbein, Mona Farag, Tabea Lachenmann and Jean Wagner.

The competition to build a new bridge was launched in 2010 to replace a concrete bridge built in 1949. Bridge construction has a long tradition at this location: since Roman times, there has been a bridge over the Aare from the historic town center over the Zollrain to the north towards the Jura. It has been replaced several times by new structures. A chain bridge from 1848 and the concrete bridge from 1949 are documented. The bridge is an important link in the city traffic. It is the gateway to Aarau. An auxiliary bridge had to be erected for the duration of the construction work to prevent traffic from sliding into chaotic tracks. It was erected and dismantled like a normal bridge.

The “Pont Neuf” is the link to the urban fabric and at the same time part of the landscape along the Aare. Its calm, balanced structure embeds it in the river landscape, and it also acts as a mediating transition to the historic old town. The seamless transformation of the bridge body into the embankment walls connects the bridge with the river space. The “Pont Neuf” is a technically optimized, modern concrete structure and at the same time has the appearance of a traditional building. Its construction and design refer to the solidity of the many historic stone buildings in Aarau, including the medieval houses along the town wall, the nearby pillars, retaining walls, ramps and bank reinforcements. The concrete is lightly colored to match the urban surroundings. With the many hollow bodies in the piers of the “Pont Neuf”, which make the arched reinforced concrete construction possible, concrete was used sparingly. The five arches with different spans rest partly on the caissons of the old bridge in the riverbed, which could thus be reused. All bridge elements support the load transfer in order to ensure the most sustainable, durable construction possible.

POTREBBE INTERESSARTI ANCHE
Wartburg Castle has been a UNESCO World Heritage Site since 1999. Photo: A.Savin - Own work, FAL, via: Wikimedia Commons

Wartburg Castle has been a UNESCO World Heritage Site since 1999.
Photo: A.Savin - Own work, FAL, via: Wikimedia Commons

Rising high above the Thuringian countryside, Wartburg Castle is one of the most representative cultural monuments in Central Europe. Since its inscription on the UNESCO World Heritage List, it has been one of the most outstanding testimonies to European history. Architecture, political events and literary tradition intertwine here to create a multi-layered cultural narrative.

The history of Wartburg Castle begins in the 11th century, when it was founded as the residence of the Ludovingian landgraves and from then on shaped the political power in the region. Even in the High Middle Ages, the palace, enthroned on a steep limestone cliff, was considered a masterpiece of late Romanesque architecture, whose design and ornamentation make it one of the most important secular buildings north of the Alps. This architectural heritage is evidence of the feudal character of Central Europe and forms one of the foundations for the later recognition as a World Heritage Site.
Wartburg Castle’s role as a center of courtly culture and memory grows through literary traditions such as the so-called Singers’ War, which was passed down in Middle High German poetry. At the same time, historical figures such as St. Elisabeth of Thuringia, whose life and work are closely linked to the castle, are becoming firmly established in the culture of remembrance. Even if some legends were mythically exaggerated, they still reflect the early symbolic value of the place in the cultural imagination.

The architectural appearance of Wartburg Castle is the result of a long development that underwent a profound transformation, particularly in the 19th century. After centuries of changing use and partial decay, the emerging Romantic period initiated a comprehensive restoration that was based less on a historically accurate reconstruction than on an idealized image of the Middle Ages. Under this premise, the Elisabeth Bower and richly decorated interiors were created, which today form an integral part of the complex.
From an art historical perspective, this combination of original 12th century parts and historicist additions is ambivalent: on the one hand, the preserved Romanesque building elements document the civil architecture of its time; on the other hand, the 19th century additions reflect the monument preservation and historical myths of the time. It was precisely this mixture of archaeological and symbolic authenticity that was taken into account in the UNESCO nomination, with the term “authenticity” not only referring to material originality, but also including the ideas and meanings anchored in the collective consciousness.

Wartburg Castle is more than just a stone relic – it is a place of profound cultural connections. Martin Luther’s stay here during his exile from 1521 to 1522, when he wrote the German translation of the New Testament from Greek in the so-called “Junker Jörg” room, was particularly influential. This achievement in the history of language had far-reaching consequences for theology, education and the German literary language as a whole and had a lasting impact on the cultural significance of the castle.
In the 19th and early 20th centuries, Wartburg Castle also became a symbol of national identity and political integration. Events such as the Wartburg celebrations of the German student movement became part of the collective memory, as did literary and musical adaptations in works by Richard Wagner, which romanticized the image of the medieval castle courtyard. Wartburg Castle also remains a living point of reference in cultural memory as an inspirational place for artistic debate.
In 1999, the site was inscribed on the UNESCO World Heritage List on the basis of two criteria: Firstly, as an “outstanding monument of the era of feudalism in Central Europe” (criterion (iii)) and secondly, as a site “rich in cultural references”, particularly emphasizing its connection to the history of the Reformation and the German unification movement (criterion (vi)). These criteria reflect the exceptional universal value that Wartburg Castle has beyond the borders of Thuringia. The castle not only documents the architecture and living environment of high medieval feudalism, but also exemplifies the profound influence of historical events and cultural upheavals on European civilization. The UNESCO designation therefore not only recognizes the material substance of the complex, but above all its role as a place of remembrance that inspires generations of visitors to reflect and research. The integrative perception of architecture, history and cultural impact makes Wartburg Castle a unique medium for communicating the past and present.
At a time when cultural heritage is increasingly being discussed in a global context, Wartburg Castle highlights the importance of historical sites as mediators of identity, memory and transnational understanding. Its place on the World Heritage List helps to secure this significance in the long term and make it tangible for future generations.

Safety – The Baumeister in April 2025 is here!

Building design

Will this makeshift barrier around the bronze statue actually help at night? Not sure ... Cover photo: Rona Bar & Ofen Avshalom / Connected Archives

“Security” in architecture means more than just barriers and alarm systems – there is much more to it than that. This issue sheds light on how buildings can provide protection – be it against the forces of nature, theft or social conflict. Your planners do not see security as a restriction, but as a design potential. In order to avoid repellent gestures, they often find security-relevant solutions in the building form. […]

“Security” in architecture means more than just barriers and alarm systems – there is much more to it than that. This issue sheds light on how buildings can provide protection – be it against the forces of nature, theft or social conflict. Your planners do not see security as a restriction, but as a design potential. To avoid repellent gestures, they often find security-related solutions in the building design.

Security – a word that is supposed to reassure and yet often has the opposite effect. We all long for it, but we also know that there is no such thing as absolute security. A building can protect against rain and cold, a city can be well planned – but can architecture really guarantee that we feel safe? Or does it only create an illusion? And in the end, isn’t the feeling of safety just as important as the safety itself?

The last year alone has shown us once again how fragile our built and lived environment is. Collapsing bridges, poorly maintained high-rise buildings and natural disasters that destroy entire neighborhoods. At the same time, fear of attacks in public spaces is growing, and in many cities measures are being taken to turn urban squares and buildings into high-security zones. But do we really need to turn our built reality into bastions of concrete and cameras in order to feel safe? Or is there a more intelligent answer to the question of protection?

Architecture cannot guarantee absolute security, but it can create trust. It can shape spaces that convey a sense of security without restricting freedom. Architecture has the unique potential to master precisely this balancing act. From fire and earthquake-proof school buildings to carefully considered designs for public spaces: Security architecture must not rely solely on control and barriers, but must enable trust and freedom. A clever choice of materials, for example, can preserve a feeling of openness without sacrificing protection. Ultimately, it must not be about sealing things off, but about proactive design.

Security must not become an aesthetic of mistrust. Walls, bars, barriers and confined spaces may minimize risks, but they also separate us from each other. All too often, they stifle life. The most popular place, both inside and out, is often where people meet, where light and transparency dominate, where architecture acts as a social bond and thus serves a greater purpose.

This issue is an invitation to rethink security. We show projects that prove that protection does not have to mean control, but trust. That architecture not only erects walls, but also builds bridges – between security and freedom, between control and openness. Because true security is not created by fear, but by clever (re)planning, by courageous design and by a society that does not close itself off, but proactively takes the helm. Enjoy reading!

Yours sincerely,
Tobias Hager

Editor-in-Chief
t.hager@georg-media.de

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In March, our Baumeister issue was all about building on existing buildings and conversion. Read more about it here!