Yozo Fujino (2017) found that civil infrastructure supports our daily lives and social activities. He also added that most bridges are built during our period of high economic growth. Over time, maintenance and expenses have increased. He also added that the condition of infrastructure varies depending on the time and state of its construction. Infrastructures that have a high risk of accident due to damage are those that have been in use for many years. The aging infrastructure is at risk of a serious accident and he also included an example of what happened in the Sasago tunnel accident in 2012. Say no to plagiarism. Get a tailor-made essay on “Why violent video games should not be banned”? Get the original essay The study also by Bruce R. Ellingwood (2007) According to him, the risk of aging infrastructure can lead to a deterioration of bridges from aggressive chemical attacks, corrosion and other physical mechanisms. Like Bruce r. Ellingwood, our bridges are getting weaker because they are getting older. Over time, our deck became brittle. Deterioration. M. W Gewertz (1958) found that the deterioration of structural parts resulting from the growth of central corrosion on increasing steel bars in a marine atmosphere and the consequent fracture of neighboring concrete is discussed. Susan C. Vallejo (2015) found that the Philippines has a high percentage of transportation. 90% of passenger transport and 50% of freight transport respectively. Transportation involves possible changes that can contribute to our development of civilization. Some bridges have a weight capacity and when the bridge can no longer support it, there will be a chance of a bridge sinking. While Y.-J. Lee, P. Gardoni, H.-W. Lim (2010) also found that the capacity flow of a transportation network can be significantly reduced if its component bridges are damaged by natural or man-made hazards. They also indicated that these measures aim to make rapid and risk-informed decisions in risk mitigation and that the response is essential to predict the post-risk of the network effectively and accurately. The bridge structure may suffer deterioration during its life cycle. ScourAyres (2016) discovered that scour is the erosion of soil surrounding a bridge's foundations (piers and abutments). They included the cause of bridge scour. Scour occurs because rapidly moving water around the bridge removes sediment from the bridge foundation and leaves a scour hole. These holes can compromise the integrity of the deck. Most bridges built over an active watercourse are at risk of bank erosion and channel instability during their useful life. Len Wright, Paul Chinowsky, Kenneth Strzepek, Russell Jones, Richard Streeter, Joel B. Smith, Jean-Marc Mayotte, Anthony Powell, Lesley Jantarasami, William Perkins (2012) discovered that the cause of foundation instability of a bridge is due to cross it. While scour causes stabilizing materials, i.e. a river bed moving away from the substructure. Bridge Masters (2017) also found that a bridge over the river and streams is built on a gravel bed. When a flood occurs, water floods the bed downstream of its pillars, the flood awakening their ability to hold the structure. The pressure on the bridge is the effect of flooding and the elements. Fernando de Falco and Raffaele Mele (2002) discovered that scour is one.