KUESEL Thomas R. Kuesel, a noted bridge and tunnel engineer and former partner at Parsons Brinckerhoff, New York City, died on Feb. 17 in Connecticut after a long illness. He was 83. Kuesel, whose PB career spanned 43 years, contributed to design as project manager or engineer of more than 270 transportation structures and systems in the U.S. and abroad. As an engineering manager on the Bay Area Rapid Transit system in California, he directed design of 20 miles of subways, 25 miles of aerial structures, two hard-rock tunnels and a 3.6-mile immersed-tube tunnel under San Francisco Bay. Kuesel earned
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.