Greentech Media » Approved with a ballot measure in 2008, the 800-mile high-speed rail system would wend through the state and connect cities in the Central Valley, the Bay Area, Los Angeles, and eventually San Diego and the Inland Empire to the south and east of L.A. California plans completion of all legs by 2029 at a cost in the mid-$60-billion range — but the project has already been snagged by a series of budget overruns, delays, legal challenges and federal grant complications.