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. As time went by, maintenance and expenses increased. He also added that the condition of infrastructure varies depending on the time and conditions in which it was built. Infrastructures at high risk of accidents due to damage are those infrastructures that have been in use for many years. Aging infrastructure is at risk of a major accident and he even 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 Shouldn't Be Banned"? Get an original essayThe study also by Bruce R. Ellingwood (2007) According to him, the risk of aging of an infrastructure can lead to the deterioration of bridges from aggressive chemical attacks, corrosion and other physical mechanisms. Like Bruce r. Ellingwood, our bridges are weakening because they are aging. As time passed, our bridge became fragile. Deterioration. M. W Gewertz (1958) found that the deterioration of structural parts as a result of the growth of central corrosion on the rise of steel bars in a marine atmosphere and the resulting fracture of nearby concrete is discussed. Susan C. Vallejo (2015) found that the Philippines has a large percentage of transportation. 90% of passenger transport and 50% of goods respectively. Transportation has possible changes that can contribute to our development of civilization. Some bridges have a weight capacity and when the bridge can no longer hold the load there will be a possibility of a bridge being destroyed. 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 the bridges that comprise it are damaged by natural or man-made hazards. They further included that these serve for rapid and risk-informed decision making on risk mitigation and response is essential to predict network post-hazard efficiently and accurately. The bridge structure may undergo deterioration during its life cycle. ScourAyres (2016) found that scour is the erosion of the soil surrounding a bridge's foundations (pillars and abutments). They included the cause of the disintegration of the bridges. Washout occurs because rapidly moving water around the bridge removes sediment from the bridge's foundation, leaving a washout hole. Those holes can compromise the integrity of the bridge. Most bridges built over an active waterway are those at risk of experiencing a problem with bank erosion and channel instability during their service life. Len Wright, Paul Chinowsky, Kenneth Strzepek, Russell Jones, Richard Streeter, Joel B. Smith, Jean-Marc Mayotte, Anthony Powell, Lesley Jantarasami, William Perkins (2012) found that the cause of bridge foundation instability is due to sifting. While washout causes stabilizing material, i.e. the riverbed 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, rushing floods water the bed downstream of its pillars, reawakening their ability to support the structure. The pressure on the bridge is the effect of floods and the elements. Fernando de Falco, Raffaele Mele (2002) found that one of the main causes.