Online auction company IronPlanet Inc. is going public after little more than 10 years in the e-business. According to registration papers filed on March 18 with the U.S. Securities and Exchange Commission, the Pleasanton, Calif.-based used-equipment marketplace seeks to use an initial public offering to raise up to $92 million to reinvest in the Internet auction site or “to acquire or invest in businesses, products or technologies that are complementary to our own.” It plans to list on NASDAQ under the stock symbol “IRON.” Last year, IronPlanet booked revenue of $54.6 million, a 56% increase over 2008. The $246-billion global
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.