First we plan and then we design and then we start with the construction of a bridge. However, the planning needs to be fail-safe because unless we know what to construct, how to construct, where to construct, we would not be able to erect a safe structure. Planning becomes extremely important when we have to deal with vehicles running at altitudes as high as 300 meters above ground level. Planning includes analysis of topography of the site, studying soil features, effect on wetlands, and surroundings.
Once planning is compete, the focus shifts to which type of bridge to construct. Depending upon the outcome of planning studies, we arrive at a decision regarding the type of bridge to construct. A beam bridge is the simplest type of bridge whereas a truss bridge is reliable and economical at the same time. Different types of bridges are suitable for different types of climatic conditions. The following topics will guide you through much of the terminology and theory of bridge types and their construction methods.
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