Choosing the Best Site for a Bridge

The proper location for a bridge is as important as the characteristics of the bridge itself. This paper discusses a commonsense approach, combined with science, to help select the best locations for bridges. Problems associated with bridge location and construction can be alleviated by conducting a proper site investigation, paying attention to geomorphological indicators, and understanding road template design needs and how streams and watersheds function. Channel classification provides a simple framework to help understand the problems that may exist at bridge locations and to help with route locations. An interdisciplinary approach is required to incorporate all the considerations involved in choosing the best bridge location.