> in California, major transit extensions take a decade or more to complete and cost tens of billions of dollars Recent data from LA Metro: * In 2012, Expo Li

> in California, major transit extensions take a decade or more to complete and cost tens of billions of dollars Recent data from LA Metro: * In 2012, Expo Line phase one (Downtown to Culver City) opened, six years after construction broke. * In 2016, Expo Line phase two (Culver City to Santa Monica) opened five years after construction broke. * In total, the 15.1 mile Expo Line cost $2.5 billion. * Also in 2016, the Gold Line Foothill Extension, Phase 2A (Pasadena to Azusa) opened after five years of construction at a cost of $735 million. * Gold Line Foothill Extension, Phase 2B (Azusa to Montclair) is expected to cost ~$1.5 billion, involves some major additional work (relocating existing commuter rail and freight rail tracks), and is expected to open in 2028, about nine years after it broke ground.