Historic Bridges of the U.S. This is the most complete database of historic bridges I've seen. The front page is blog style that seems to have an emphasis on preservation, and which links to a database that is actively being updated & expanded. You can search by state or by county, and look at each bridge's individual page, including a wealth of stats, and a high-res photo, when available. [more inside]
posted by Devils Rancher on Aug 17, 2009 - 31 comments

18 stunning bridges from around the world. (via Mira y Calla) [more inside]
posted by madamjujujive on Jan 20, 2008 - 95 comments

Construction of the World's Highest Bridge, Millau Viaduct in France, which is slightly higher than the Eiffel Tower. It is now included in a list of Google Earth extremes. World's most interesting bridges. Gallery of beautiful world bridges. [more inside]
posted by nickyskye on Oct 5, 2007 - 23 comments

Leonardo's Bridge became a reality, with the construction of the 100 meter bridge spanning the E-18 in the township of Ås, east of Oslo. The design of the bridge makes modern bridges seem old in comparison. It seems that many of DaVinci's 500 year old ideas are coming to fruition.
posted by dancu on Nov 1, 2001 - 10 comments