It's no secret that our infrastructure is in bad shape. We can look around and see many obvious problems, and our road and bridge systems need substantial help (Fig. 1, p. 50). Deterioration due to environmental issues, water, salt and chemicals causes serious corrosion and erosion concerns. Over the years, a variety of methods have been employed to help mitigate these issues, but each has individual characteristics and problems. As populations grow in centralized areas, so does wear and tear on the roads, and scheduling repairs can create nightmares for local traffic.
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