> Moore said the surge in costs is likely to foreshadow even greater future increases. On the horizon are more difficult segments, such as the long underground

> Moore said the surge in costs is likely to foreshadow even greater future increases. On the horizon are more difficult segments, such as the long underground passage through the Tehachapi and San Gabriel Mountains and the route into the urban San Francisco Bay Area. ... > In Hill’s presentation to the board, he said intrusion barriers will cost an extra $450 million; land buys, $400 million, delays for not acquiring land, $325 million; satisfying issues raised by localities, $250 million; and relocating wires, pipes and cables used by utilities, $350 million. These issues are all related to surface land acquisition and management (except piping/cabling relocation). Hopefully tunnel boring won't come up with new unexpected problems; they're far enough from built-up areas that there shouldn't be too much underground infrastructure to work around.