The last woven bridge of the Semois valley — a seasonal masterpiece of hazel weaving, a living witness to the Ardennes tobacco era, and an icon of the village of Laforêt.
The Pont de Claies of Laforêt is much more than a pedestrian footbridge. It is the last representative of a millennial crossing technique once omnipresent in the Semois valley — a living demonstration of vernacular Ardennes ingenuity in the face of an unpredictable river's whims.
Each summer, the municipal workers of Vresse-sur-Semois perpetuate an ancestral gesture: they weave hundreds of hazel branches around a hornbeam frame to create the claies — these rigid panels that will form the deck of the bridge. The technique, inspired by Celtic methods of crossing marshy areas, uses no nails or screws in its original version.
The structure spans the Semois in two sections: the main part crossing the main branch (~70 meters) and a second of about ten meters reaching the island towards Chairière. In total: 80 meters long, 1.40 meters wide, 85 assembled woven panels.
Its ephemeral nature is not a weakness: it is a millennial intelligence. Assembled in June, dismantled in September, the bridge negotiates with the river rather than resisting it. An early environmental resilience that the Semois National Park has classified as heritage to be protected.
The genesis of the woven bridge is intrinsically linked to the unique hydrographic configuration of the Semois — a river that travels 210 km to connect two points only 80 km apart as the crow flies.
The Laforêt area is characterized by a fluvial dynamic where the deposit of alluvium has created soils of exceptional fertility, locally called "Le Rivage" (The Shore). These lands contrast radically with the poverty of the schist soils of the surrounding plateaus — an agricultural treasure demanding to be crossed regularly by farmers.
The Semois has a strong seasonality: marked low water in summer (allowing the installation of the bridge) and violent winter floods, laden with debris, capable of destroying any un-masoned structure. The woven bridge is the perfect answer to this paradox: a temporal infrastructure that retreats before the river's winter wrath.
The riverbed at the bridge site is rocky and shallowly alluvial, offering a solid support for the oak trestles driven in manually. A risk of bottom-freezing in winter reinforces the need for seasonal dismantling.
The existence of the woven bridge is inseparable from a major agricultural revolution: the industrialization of tobacco cultivation. Without tobacco, there would be no woven bridge.
The prosperity generated by tobacco profoundly altered the architecture of Laforêt. Tobacco drying sheds — elongated sheds with slatted wooden walls allowing air circulation — were erected throughout the village. Some are still visible today on rue Sainte-Agathe. They are part of the small Walloon heritage protected by the National Park.
Without the woven bridge, transport costs and the risks of losing crops while crossing the river would have significantly reduced the profitability of Semois tobacco. The bridge was not just a simple crossing object: it was an essential link in a rural industrial production chain.
The ingenuity of the bridge lies in its exclusive use of local natural materials and an in-depth knowledge of the mechanical properties of each Ardennes forest species.
Each part of the bridge requires specific properties: resistance to compression, flexibility for weaving, or rot-resistance in wet environments. The choice of species leaves nothing to chance — it is the fruit of centuries-old observation of the Ardennes forest.
Oak, rich in tannins, offers superior resistance in damp environments. Beech is used for its density. Together, they form the pillars driven into the rocky bed of the Semois.
Its exceptional hardness makes it suitable to withstand repeated trampling. Used for the panel frameworks and sometimes for the woven mats.
The royal species of the bridge. Young hazel branches possess remarkable flexibility allowing tight intertwining without breaking, creating a rigid and slightly elastic surface after drying.
Two cables connect each half of the bridge to its bank. In the event of a sudden flood, the bridge splits in two and the sections remain attached rather than being washed away — a feature proven during the July 2021 floods.
| Element | Material | Desired property |
|---|---|---|
| Trestles (pillars) | Oak / Beech | Load and water resistance |
| Stringers (poles) | Beech / Hornbeam | Transverse rigidity |
| Panel framework | Hornbeam | Structural strength |
| Weaving (mats) | Hazel | Flexibility and cohesion |
| Guy-wires (modern) | Steel | Safety against floods |
Assembly in June (at low water), dismantling in September–October. In winter, the panels are stored and repaired in the cellars of the Maison de l'Office. Humidity control is crucial: too dry, the branch stiffens; too wet, it rots.
📅 SeasonalRobert Dinant, an emblematic figure, transmitted his techniques to Claude Delosse, ensuring the longevity of the structure. This knowledge is not learned from books: it is passed down from hand to hand, from look to gesture, during each annual assembly.
🧑🎓 Oral transmissionA devastating fire destroyed the entire stock of panels stored in the Maison de l'Office in 2011, forcing a complete reconstruction of the structure from scratch. This event illustrates the extreme fragility of this physical heritage and the resilience of the community.
⚠️ Major eventThe torrential rains of July 2021 caused a historic flood. The structure split in two as planned by its cable safety device. The two halves remained attached to the banks — a resounding demonstration of the relevance of the modernized safety system.
🔒 Proven safetyThe future of the bridge is directly threatened by increasing hydrological instabilities. The Semois River Contract conducts concrete actions: planting helophytes, natural stabilization of the banks — in five years, about 18 meters of land have been reclaimed from the river thanks to bioengineering. These interventions are crucial to keep the riverbed in a configuration that allows the annual installation of the bridge.
Recognized as one of the "Most Beautiful Villages of Wallonia", Laforêt has retained a remarkable architectural homogeneity thanks to its relative isolation and a strict preservation policy. The houses are built of local schist with faisiaux roofs — those thick slate offcuts that give the dwellings a stocky, protective silhouette.
This exclusive use of local geological and biological materials creates a total landscape harmony where the woven bridge appears as the natural extension of the village over the river.
An aquatic being with a long hook, used by parents as a boogeyman to keep children away from dangerous waters. Today, a mascot guiding tourists on the Promenade des Légendes.
Small beings living in holes in the rocks, typical of the mysterious Ardennes. They symbolize the link between the human world and the wild nature of the valley.
The rivalry between Laforêt (Saint Agatha) and Vresse (Saint Lambert): the stone bridge of Vresse was supposedly built deliberately narrow to prevent the saint of Laforêt from crossing it in a carriage!
Detail of the hazel weaving — Pont de Claies, Laforêt
Since the beginning of the 21st century, the woven bridge has become one of the most photographed sites in the Namur Ardennes — an "Instagram" phenomenon that attracts tens of thousands of visitors each year.
The creation of the Semois Valley National Park in 2022 consolidated the protection of the site (28,980 ha · 675 km of watercourses · Natura 2000 sites). The woven bridge is one of the emblems of the park's enhancement strategy, perfectly illustrating the "symbiosis between man, culture and nature".
The woven bridge is one of the most iconic moments of a kayak descent on the Semois. Passing under the woven structure, hearing the wood creaking and seeing the walkers watching you from the deck — a unique experience in Western Europe.
Kayak Semois Ardennes offers descents passing in front of Laforêt from June to September (bridge season). Routes from Vresse-sur-Semois or Alle-sur-Semois, starting at €17/person, shuttle included.
🚣 Book my kayak from €17
View from the Semois — Pont de Claies, Laforêt
The bridge is installed every year in June (as soon as the Semois water level drops) and dismantled in September–October. Free and open access. Check the Semois water level before setting off.
Exclusively wooden structure: oak/beech trestles in the rocky bed, beech/hornbeam stringers, and ~85 woven hazel panels. No nails or screws in the traditional version. Modern steel cables for safety in the event of a flood. Dimensions: ~80 m long, 1.40 m wide.
Yes. It is the last representative of a technique once omnipresent in the Semois valley. A major ethnographic curiosity in Western Europe, listed in the Most Beautiful Villages of Wallonia and integrated into the Semois National Park.
Yes! Passing under the woven bridge in a kayak is one of the highlights of descents on the Semois. Kayak Semois Ardennes offers routes passing in front of Laforêt from June to September, starting at €17/person.
A marked 3.3 km (~1 hour) circuit departing from the center of Laforêt. It incorporates the woven bridge and mythical Ardennes figures: Pépé Crochet, the Nutons. Accessible to families. Explor Games (augmented reality) are available to enhance the visit.
If you come before June or after October, the bridge is dismantled. You can still enjoy Laforêt and the Promenade des Légendes on foot, as well as a kayak descent on the Semois (kayaking season: April–October depending on water level). Inquire at the Vresse-sur-Semois Tourist Office.
Pass under the woven structure during a kayak descent on the Semois — a unique experience in Western Europe.
🚣 Book my kayak from €17