Abandoned Iron Traditional Cache

This bridge was posted to the National Register of Historic Places on December 26, 1990. Truss bridges became a common type of bridge built from the 1870s through the 1930s. Examples of these bridges still remain across the United States, but their numbers are dropping rapidly, as they are demolished and replaced with new structures. As metal slowly started to replace timber, wrought iron bridges in the U.S. started being built on a large scale in the 1870s. As the 1880s and 1890s progressed, steel began to replace wrought iron as the preferred material.