Jaw-Dropping: The Most Expensive Bridge Projects in the World
1. The Navajo Bridge
Place of origin: Page, Arizona Founded: 1927 (first), 1993 (second) Expense: $25.12 million (second), $5.94 million (original) The Navajo Bridge, which spans the Colorado River in Grand Canyon National Park, is made up of two steel spandrel arch bridges and is named after the Native American tribe that resides in Arizona. The 1993-built, more recent bridge is a segment of US Route 89A. Constructed in 1927, the elder structure is exclusively appropriate for pedestrian and horseback riding.