Lengthy journey Suspension bridges may reach between two and thirteen thousand feet in length. No other sort of bridge can stretch thus far. As a result, it is frequently the design used by builders to connect distant areas. Although they are often called "suspension bridges", this is not strictly true: most are actually cable-stayed bridges. They are usually long enough to support a road or rail line across. Some are even long enough for a whole series of roads or rails to cross at one location! The longest suspension bridge in the world is also located in Canada. It connects Quebec with New Brunswick and has a total length of just over four miles (six kilometers). There are several different types of bridge that go beyond the typical suspension bridge. One type of bridge used widely in Europe is the truss bridge. This consists of three main sections of steel connected by wooden members. The bridge deck is made of concrete or asphalt. Another type of bridge is the through truss. This has two sets of triangles connected by webbing. On top of the triangles are horizontal members called chords. The ends of the chords are attached to towers or piers. A third type of bridge is the box truss.