At the A2 motorway in the canton of Uri in Switzerland, Guignard & Saner Architekten built a roadside chapel captured by Julian Holzwarth, whose concrete walls glow with light refracted through tightly packed bottle shards — stillness sited at the edge of transit.
The commission arrived through competition in 1996: a prayer room to be placed alongside the Gotthard motorway in Erstfeld, in the deep-cut Alpine valley of the canton of Uri. Pascale Guignard and Stefan Saner won first prize with a design of considerable tectonic intelligence. The building was completed in 1998, and what stands today is among the more quietly extraordinary works of Swiss religious architecture from that decade.
The chapel is cube-shaped and embedded within an enclosed inner courtyard, its base level extending the exposed concrete courtyard wall to the northeast as a closed, opaque plinth. Above this base rises a concrete skeletal grid — a structural cage whose square openings are filled with glass, between the panes of which the architects have pressed tightly compressed shards of broken bottles. The glass does not allow one to see through it; instead it refracts light into spectral flashes, bathing the interior and the courtyard in a shifting, gem-like luminosity that changes with the angle of the sun and the direction of the motorway traveller's gaze.
The structural logic of the grid is made visible by a refinement at the corners: there are no corner supports, so the skeletal cage reads as hovering — a grid of light rather than a cage of weight. The window frames are integrated into the structural members on the exterior face, so the interior experiences only exposed concrete, reflective greenish-shimmering glass, and wooden panelling. Wall niches in the base area, produced by the geometry of the grid, are lined with timber and fitted with solid benches — seating whose mass and warmth counterpoints the mineral luminosity of the walls above.
There is no altar. No hierarchy of liturgical furnishings. The room is organised around the experience of light filtered through broken glass — an act of material transformation that carries its own quiet theology. In a country renowned for the precision of its religious minimalism, this small building finds a singular way to make the sacred legible: through colour, through fracture, through the improbable beauty of discarded things compressed into a wall.
