In US history, many of bridge failure has happen. The 1907 and 1916 Quebec Bridge case, the 1940 Tacoma Narrows case, the 1962 Kings Bridge case, the 1967 Point Pleasant case, the 1983 Mianus 1-95 case and the 1987 Schoharie case are the example of any problem related with the bridge building. That is why; to support a great bridge, high strength structural bolts are needed.
The use of the right wire_rope will add better strength for the bridge. The strength is needed not only to support the bridge as a whole but also to support any possible added weight caused by any heavy type vehicle. And for any regular maintenance, a good lifting_devices will ensure the maintenance process work accordingly.













