Shutting down the tracks is equivalent to shutting down the revenue stream, and the construction times associated with remove and replace projects makes these considerations unrealistic at best. As a result, the railways prefer to rehabilitate or even replace these structures in place while rail transports seamlessly continue.
Railway timber trestles were extensively used in the 19th century, making up from 1 to 3 percent of the total length of the average railroad. These trestles are a growing focus for the railways, as the 21st century is witnessing their need for replacement.