Quanta Services Inc., a Houston-based utility contractor, announced on Sept. 3 it will acquire Price Gregory Services Inc., a privately held natural-gas and oil transmission pipeline infrastructure contractor, also based in Houston. Quanta says it will pay $350 million in cash and stock in the transaction. Quanta plans to issue about 11.1 million shares of its common stock, which the company values at $250 million, and pay about $100 million in cash to Price Gregory stockholders. Quanta ranked No. 2 on ENR’s Top 600 Specialty Contractors list in 2008. Price Gregory says it had $1.41 billion in revenue in 2008
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.