Flights at Chicago Midway International Airport will continue to take off as usual, but a multibillion-dollar deal to privatize the airport will remain grounded, at least until the U.S. economy refuels. The sale, valued at $2.52 billion and set up for a 99-year lease, was scheduled for signatures on April 6, but Midway Investment and Development Co., a joint venture of Citi Infrastructure Investors, John Hancock Life Insurance Co. and Vancouver Airport Services, failed to come up with the capital needed to close the deal. MIDCo finally broke talks with the city in late April after it was granted a
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.