Trail building concept design and research in pencil by Frits Ahlefeldt – See all the hiking Concept sketches here
See all trail design drawings here
The Cadbury bridge trail design
Text and concept sketch by Frits Ahlefeldt. Hiking.org
One of the classic ways of building hiking trail bridges is the Gadbury bridge, made of wood. Simple use of local materials. Part of hiking.org research of ways to design, build and maintain hiking trails

Keywords: bridge, less is more, design, architecture, hiking, innovation, sketch, pencil, drawing, concept