Short bridges in the US provide a basic infrastructure to the country. Many such bridges are approaching their design life and are suffering for the effects of aging. This takes the form of degraded materials, scour effects or ‘frozen’ joints and supports. SG is able to measure the response of such bridges even while the bridge remains open for vehicular traffic, and to assess the risk profile of the bridge. SG’s engineers will then work with clients to manage the risk that is uncovered in a financially responsible manner.