Despite Florida Gov. Charlie Crist’s (I) authorization this month of as much as $200 million for a long-term effort to provide upgraded sewer systems for the Florida Keys, the prospects are poor for funding in total the estimated $937-million project. The governor’s action—which also extended the project deadline to 2015 from July 2010—does not provide a timeline for delivery of the Everglades Restoration bonds; it only authorizes the Florida Legislature to initiate the $200 million in bonding sometime in the future. Liz Wood, Monroe County’s senior administrator for sewer projects, says the nine municipalities and utilities that will build 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.