Wooden bridge terrace
|Client: Municipality of Keltern, Germany
Object: Creek bridge, public footpath.
|Assignment: Slip protection for bridge with wooden plank covering.
Substrate: Wood, larch.
|Antislip Solution: Non-slip floors
Class C: DIN EN 16165 – Angle of inclination ≥ 24°
Class R11: DIN EN 16165 – Angle of inclination 19°-27°
Wooden bridges have existed since prehistoric times, i.e. for 1.6 million years. While at first it was fallen tree trunks that helped to cross streams, swamps and hollows, people soon found a way to literally build crossings with wood. The oldest recorded wooden bridges date back to the Middle Stone Age.
And even today it is impossible to imagine our environment without bridges made of wood, a renewable resource. Brooks and small rivers in rural areas are often bridged with wood, as they fit well into the landscape and the wood can usually be found on the doorstep.
The public bridge made of larch in the municipality of Keltern connects a residential area over the Pfinz. Next to yew, larch is the heaviest and hardest wood among the European conifers. No wonder, then, that larch was used for bridge building. Like all woods, the bridge planks were also slippery when wet. SWISSGriP was commissioned to make the bridge slip-resistant.
This is how wood becomes non-slip: