It is the oldest wooden covered bridge in Europe, and one of Switzerland's main tourist attractions.
Today, timber bridges are promoted as environmentally friendly, and as a way to protect water quality and the habitat along waterways.
[3] The passing of TBI and ISTEA by the US Congress has provided an impetus to identify and develop standard designs for timber bridges, which the US Forest Service has done.
[4] The US Forest Service has designed standardized plans for timber bridge superstructures made of treated lumber.
Wood laminated by stress, glued, dowels, or nails lumber are good for panel bridges.