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Extending the Broad Street Subway to the Navy Yard would cost upwards of $380 million more than originally anticipated when the proposal to extend the city’s north-south transit line down to the growing South Philadelphia business hub was first introduced in 2008.What would we be up to now? $700 million?
In a few weeks, SEPTA expects to release details and updated cost estimates in a long-delayed study on the feasibility of the proposed extension. The feasibility study was originally scheduled for release last summer.
The subway extension’s skyrocketing costs and delayed report trace back to the same cause: A mid-study realization that the preferred construction method of digging a deep trench, building the subway tunnel, and then burying it — known as “cut and cover” — was no longer feasible. “Instead, [construction] would have to be tunnels, likely using a boring machine,” said Liz Smith, SEPTA’s director of strategic planning.
~Alex Charyna: SEPTA (and PATCO) Forum Moderator
“Arguing with anonymous strangers on the Internet is a sucker's game because they almost always turn out to be—or to be indistinguishable from—self-righteous 16-year-olds possessing infinite amounts of free time.”
― Neal Stephenson, Cryptonomicon
“Arguing with anonymous strangers on the Internet is a sucker's game because they almost always turn out to be—or to be indistinguishable from—self-righteous 16-year-olds possessing infinite amounts of free time.”
― Neal Stephenson, Cryptonomicon