Thanks to an executive order from New York's governor, the New York State Dept. of Transportation is using design-build on emergency reconstruction of six miles of state Route 42. The Catskills-area stretch suffered flooding during Hurricane Irene and Tropical Storm Lee.Restoring Route 42 for Ulster and Greene counties by February is a top priority, says NYSDOT Commissioner Joan McDonald. Gov. Andrew Cuomo (D) issued Executive Order 19, allowing NYSDOT to use design-build.Halmar International and McLaren Engineering Group won the best-value contract of $14.1 million, beating out four other teams. The work includes replacement of two bridges, 150 ft and 100
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.