California HSR Phase I cost escalates by 35 per cent, US January 19, 2018 | North America Finance The estimated cost for the development of the high-speed rail (HSR) line Phase I in California has increased by 35 per cent from USD7.6 billion to USD10.6 billion. This has increased the total cost of... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password