| 3rd Street Tunnel of Los Angeles: Postcards and photos from its construction in the 1890s to the present day. |
| Foresthill Bridge: Information about the structure in Northern California used in movies and stunts. Includes photograph album and media articles. |
| Knik Arm Bridge and Toll Authority: Created to construct a bridge connecting Anchorage and the Mat-Su Borough. Page includes history, diagrams, and maps. |
| NewBayBridge.org: Page by the California Alliance for Jobs illustrating and describing construction of the new east span of the San Francisco-Oakland Bay Bridge. Includes builder information and history of the existing bridge. |
| Oregon's Covered Bridges: History and county by county guide, with photographs and descriptions. Also an explanation of truss types, with diagrams. |
| The Bridges of Portland, Oregon: Photos and descriptions of Portland, Oregon's wide variety of river bridges. |
| Whittier Tunnel: A one lane shared railroad/road tunnel under construction. |
Classical
