Wall Street analysts are not taking kindly to recent moves by Tutor-Perini Corp., the Sylmar, Calif., contractor, that would allow its chairman and CEO, Ron Tutor, to sell off his shares, possibly to finance outside activities such as his investment stake in a Hollywood film studio, observers say. In a Sept. 13 federal filing, the firm's board agreed to allow Tutor to divest 100% of his shares as long as one buyer does not accumulate a 15% or higher ownership stake. He currently has a 25.2% stake, or 11.9 million shares.The filing says the board removed most restrictions on Tutor's
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.