Lawmakers who support the Employee Free Choice Act, legislation that would make it easier for unions to organize, continue to hold backroom negotiations to find a way to change the bill to avoid a filibuster in the Senate. Construction groups oppose provisions that permit elections without a secret ballot and require binding arbitration to settle disputes. Geoff Burr, vice president of government affairs with Associated Builders and Contractors, says even if some provisions were removed to reach cloture, once the bill goes to the floor, senators can reinstate those provisions by amendment. Kate Cyrul, a spokeswoman for Sen. Tom Harkin
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.