The $2-million Sustainable Sites Initiative, having included its four-star rating system within its guidelines for developing and maintaining healthy landscapes, is seeking applications for 75 to 150 pilot projects to test the credit-based program. Applications to SSI, which is taking the first comprehensive look at sustainable landscape design, construction and maintenance, are due by Feb. 15. Photo: Sustainable Sites Initiative Sustainable Sites Initiative is the first to take a comprehensive look at greener landscapes. On Nov. 5, SSI released the 233-page “SSI: Guidelines and Performance Benchmarks 2009” and “The Case for Sustainable Landscapes,” a set of economic, environmental and social
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.