There's only 22 percent of its capacity, that's less than a quarter, available for the payload, the stuff that the bridge is there to support: the railway, the road and so on. And in fact, over 50 percent of that payload, of that dead load, is the cable on its own.
Solo queda el 22 % de su capacidad --menos de un cuarto-- para sostener la carga o sea, lo que el puente sostendrá: el ferrocarril, la carretera, etc. De hecho, más del 50 % de esa carga --de esa carga inevitable-- se va en el cable.