David Altrath Captures the Geometric Soul of Germany's Autobahn Chapel
A photographic study of light, timber, and sacred geometry in roadside architecture.
1Motorway sanctuary
The Autobahnkirche Siegerland serves as a spiritual pitstop along Germany's A45 motorway near Wilnsdorf. Designed by schneider+schumacher in 2013, its stark white exterior translates traditional church iconography into contemporary folded forms. Two pointed spires rise from angular volumes, creating a striking silhouette against the landscape. Altrath's photographs emphasize this graphic quality through both distant vistas and tight compositions of sharp edges and sloping planes.
2Wooden geometry unveiled
Inside the chapel, 66 precisely engineered timber profiles form a continuous vaulted gridshell across walls and ceiling. Altrath's lens reveals how this structural lattice creates intricate geometric patterns through repetition of wooden ribs. Rather than showing the space whole, he isolates sections where the timber framework intersects to form sculptural openings. The photographs document how this engineered wood system achieves both structural integrity and aesthetic harmony.
3Light as architectural medium
Altrath captures the chapel's sophisticated daylighting strategy where small roof openings create precise light points on the timber surface. Larger skylights within the spires bathe the interior in diffused illumination from above. His images show how natural light transforms throughout the day, highlighting individual wood panels and casting dynamic patterns across the curved gridshell. This interplay between material and light becomes a central theme in the photographic series.
4Material transitions
The photographic sequence traces the visitor's journey from the chapel's minimalist white exterior to its warm wooden interior. Altrath documents this spatial narrative through contrasting shots: the crisp graphic exterior against overcast skies versus the intricate timber ribs enveloping the altar space. This transition reflects the building's conceptual approach - using materiality to mark the passage from secular to sacred space.
5Detail-oriented documentation
Altrath's method focuses on architectural elements that reward slow observation - the precise joinery of timber ribs, the way light slices through skylight openings, and how the gridshell frames the simple white altar wall. His compositions reveal design decisions invisible at highway speeds, like how curved timber stools mirror the ceiling's geometry or how linear candle shelves follow the wall's contour.
6Structural expressionism
The photographs highlight how the chapel's structure becomes its ornament. The exposed gridshell demonstrates how engineered lumber can create complex curved surfaces without decorative additions. Altrath's close-ups of intersecting ribs showcase the technical precision required to achieve these seamless transitions between walls and ceiling, turning structural necessity into visual poetry.
7Spatial choreography
Through sequential images, Altrath reveals the building's carefully orchestrated approach sequence. A sloping walkway leads visitors between angular white walls toward the chapel entrance. Inside, the timber structure gradually curves around the central nave, directing focus toward the illuminated altar. This spatial progression creates a contemplative rhythm that contrasts with the surrounding highway's velocity.
8Photography as architectural study
Altrath's series transcends documentation to become a meditation on sacred space in transit environments. By isolating geometric patterns, material textures and light effects, he reveals how contemporary architecture can create spiritual resonance through pure form. The photographs demonstrate how roadside architecture can offer both functional respite and aesthetic nourishment to hurried travelers.