California will receive $2.25 billion, the largest amount for any state, in federal economic stimulus funds to develop a high-speed rail line running from Anaheim to San Francisco — a big boost for the long-discussed project aimed at accelerating the state’s economic recovery.

Overall, the Obama administration plans to distribute $8 billion for work on 13 rail corridors. Trains on the proposed Anaheim-to-San Francisco line, which is projected to cost about $42 billion, would whisk passengers the 400 or so miles in no more than 2 hours, 40 minutes. The project would take a decade to complete, with extensions to San Diego and Sacramento planned.

President Obama and Vice President Joe Biden will announce the funding Thursday during an appearance in Tampa. Administration officials will be in other parts of the country to tout the grants as a job-creation measure at a time when Democrats are increasingly anxious about losing congressional seats in the upcoming midterm elections.

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