With billions of dollars of state and federal funds anticipated, California can now pay some 80 engineering consultants on its planned 800-mile, $46-billion high-speed rail line. Already $5 million in debt for scoping and design work that occurred on the north-south express connector since the financially-strapped state froze infrastructure financing in December, the Pooled Money Investment Board approved a $29.1-million loan at its April 6 meeting after State Treasurer Bill Lockyer successfully sold $6.54 billion in bonds at the end of March. Photo: CA High-Speed Rail Authority Engineers have worked on planned line without pay The High Speed Rail Authority
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.