John Hernan, a construction advertising sales executive whose West Coast-based career at Engineering News-Record and its parent firm McGraw-Hill Corp. spanned more than 44 years, died Dec. 19 in California of melanoma-induced cancer. He was 85. Hernan began his ENR career in 1960 and soon became one of its most prolific and successful ad sales executives. "He was an extraordinary professional," says Howard Mager, a retired McGraw-Hill senior vice president and ENR publisher. Hernan retired in 2004. John Bodrozic, president of Meridian Systems, a Folsom, Calif.-based project management software firm, recalls Hernan's guidance when the firm started operation in the
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.