As the works to complete the dam and tunnel that will divert water across the Andean Continental Divide in northern Peru struggle toward completion, the Brazilian company handling the job� is already preparing for the next phase of the project. La Concesionaria Trasvase Olmos S.A., a business entity created solely for the project by general contract Odebrecht Peru, is seeking the 20-year contract that will divert the waters from the Los Olmos project to irrigate 38,000 hectacres on the arid Pacific coast. On May 11, Peruvian President Alan Garcia signed the document clearing the way for the regional government of
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.