Analysis of information sources in references of the Wikipedia article "Ronkonkoma Branch" in English language version.
The first phase includes an environmental review and, after completion of that review, a design of the entire project and construction of a four mile segment between Ronkonkoma and Central Islip. This phase is already completely funded and tentatively scheduled for completion by late 2016. Phase two – which requires $297 million and is not yet funded - will stretch a second track from Central Islip all the way to Farmingdale by the end of 2018.