Brian Micklethwait at Samizdata has a post on the Millau Viaduct, the final link in the Paris-Barcelona autoroute, which opens today in southern France. More information on this long cable-stayed span—which cost €394 million ($530 million) for a 2.5 km (1.6 mile) span—is available here.
Michael Jennings has further thoughts on the Millau Viaduct and bridge design more generally, in response to this thread at Brian Micklethwait’s Culture Blog.
Cable-stayed designs are definitely in vogue on this side of the Atlantic; recent examples include the asymmetric Leonard Zakim bridge built as part of the “Big Dig” in Boston, the William H. Natcher Bridge over the Ohio River; closer to home, there’s the I-310 Hale Boggs Memorial Bridge crossing the Mississippi River just west of New Orleans, and in the future there’s the Greenville Bridge under construction on U.S. 82 and the proposed Charles W. Dean Great River Bridge on future I-69 and U.S. 278, both crossing the Mississippi River between Arkansas and Mississippi.
(I previously mentioned the viaduct here.)
Michael Jennings has photos up at Samizdata from his recent trip to view the highly impressive Millau Viaduct in France.