Identifying a Waddell A Truss Bridge requires a blend of historical knowledge, architectural insight, and structural analysis. Designed by pioneering engineer John Alexander Low Waddell, these bridges represent a critical innovation in late 19th-century railroad infrastructure. Below, we’ll break d

The Steel Bridge in Portland, Oregon, often referred to as the graceful steel bridge on the PRL&P (Portland Rail Line & Pathway), is a remarkable feat of engineering and design. Opened in 1912, this double-deck vertical lift bridge spans the Willamette River and serves multiple modes of transportati