courtesy of CDA Beehives are part of socially responsible activity in O'Hare modernization. courtesy of CDA Chicago O'Hare is undergoing a $6.6-billion modernization. Chicago's $6.6-billion O'Hare International Airport modernization program features three features not usually associated with aviation: bees, hydroponics and a graveyard.The O'Hare modernization program (OMP) cleared a major hurdle earlier this year when the Illinois Supreme Court denied an appeal filed by St. John's United Church of Christ, allowing the city to regain title and possession of St. Johannes Cemetery, located on airport property. Relocation is critical to the completion of a new 10,600-ft-long runway that will accommodate
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.