Knik Arm Bridge and Toll Authority
- Created to construct a bridge connecting Anchorage and the Mat-Su Borough. Page includes history, diagrams, and maps.
- http://www.knikarmbridge.com/

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.
- http://www.newbaybridge.org/

Oregon's Covered Bridges
- History and county by county guide, with photographs and descriptions. Also an explanation of truss types, with diagrams.
- http://home.comcast.net/~draft10/bridges/bridges.html

3rd Street Tunnel of Los Angeles
- Postcards and photos from its construction in the 1890s to the present day.
- http://www.ulwaf.com/LA-1900s/PicturePages/AngelsFlight3rdSt.html

The Bridges of Portland, Oregon
- Photos and descriptions of Portland, Oregon's wide variety of river bridges.
- http://www.bizave.com/portland/bridges/

Whittier Tunnel
- A one lane shared railroad/road tunnel under construction.
- http://www.dot.state.ak.us/creg/whittiertunnel/index.htm