A new system of prestressing known as the BBRV system is becoming increasingly popular in Europe. The system has been in use for the past few years in Switzerland, Austria, France, Germany and Italy and recently received its first large scale application in England for a service bridge in Kent. The advantages claimed for the system lie in the simplicity of the anchorage and in the greater amount of force that can be applied per cable. While most systems of prestressing depend for the efficiency of their anchorage on the friction developed by some form of wedge, the BBRV anchor uses a direct form of bearing by "nail heading" the end of each wire of the cable. Such a nail head has a strength equal to the ultimate tensile strength of the wire. Cables are formed by grouping bundles of wires and passing them through a common anchor head after which the wires are nail headed.