Drilling will be a focus for the company in 2013 as Tomagold looks to explore the southwest Winchester extension just south of the Monster Lake project.

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And investments, including the Underground's current star project, the Jubilee Line extension, have sometimes been guided more by political considerations than by careful cost-benefit analysis.

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Transport for London confirmed to the BBC that it would receive the loan for the extension on London Underground's Northern Line and run the project.

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Progress towards construction and eventual production at the Renard Project also depends on the progress of the route 167 extension.

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And most also call for an extension of the International Space Station project to 2020, well beyond the currently planned end point of 2016.

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Work on the Helix project, which also includes a canal extension, pathways and cycle networks, began in February 2011.

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The extension would not interfere with the other major river-crossing project that has been championed since the demise of the ARC project: Amtrak's Gateway project, which would add new tunnels to connect the northeast corridor lines in New Jersey to Penn Station in Manhattan.

WSJ: N.J. Subway Idea Lives

The project would require that one part of the current westward extension of the No. 7 line be revived: A planned station at 10th Avenue that was eliminated from the extension because of its projected cost would be restored.

WSJ: N.J. Subway Idea Lives

Newmont, based in Denver, Colorado, is the majority owner of the Conga project, which was to begin production in 2015 and is an extension of Yanacocha, Latin America's biggest gold mine.

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