YBC’s timber foundations have been proven in independents studies to last longer than concrete or steel (Koppers,. Piling Life Expectancy. Sydney, Australia: Koppers, 2010. Print.) In addition, YBC has pioneered the process of deck level construction, driving pile from the deck of the bridge when applicable with their unique vibratory process. Our Decero™ Design approach incorporates the poly-coated treated pile foundations as an architectural component of the overall structure. YBC’s heavy sawn timber or glulaminated stringers are engineered and designed for any capacity bridge. YBC’s expert teams utilize Decero™ Design and on-site craftsmanship to arch, roll and/or curve York Structures to the natural setting of the crossing and can span 100 feet or more. Southern Yellow Pine or Douglas Fir Stringers, pile caps and other members are made of treated timbers suitable for their environment and poly/acrylic coated where exposed.