The six companies planning the Nabucco pipeline to bring Caspian gas to Europe—RWE AG of Germany, OMV of Austria, Mol Nyrt of Hungary, Bulgargaz EAD of Bulgaria, Transgaz SA of Romania and Boru Hatlari ile Petrol Tasima AS of Turkey—will each need to arrange $2.3 billion in pre-completion guarantees for the project in addition to $559 million in equity, according to recent news reports. Related Links: Europe Moves, Russia Counters on Gas Lines The Nabucco pipeline will transport 31 billion cubic meters of gas from the Caspian basin to Austria. Bulgaria announced on Jan. 21 that it will borrow $1.7
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.