rohan. a couple of questions about the actual tunneling.

rohan. a couple of questions about the actual tunneling. in the double slide, it seems like the construction there has been about three years as well. are you familiar with that project? >> no, sir, i'm not. >> it appears to be a much easier project than going under all the stuff in the city. >> that is the complexity, doing a subway in a city that has utilities, sewer, water,

carter rohan, director of capital programs and construction. thank you for allowing me the opportunity today to give you a brief on central subway. the central subway program is phase two of the third street light rail program. phase one was completed in 2007 and the completion cost of phase one was $648 million. phase two, central subway, is 1.7 miles of new track way, three stations below ground and one surface station to a projected cost of $1.6 billion. once completed, both phases, the total projected cost for central subway will be $2.2 billion. the federal share on this program is going to be totally 48%, and the federal sharing on phase two alone is 60%. the central subway schedule, we've completed conceptual and preliminary engineering. we have completed and seen our way through the supplemental environmental process, and in late 2008 we received a record of decision from the f.t.a. to allow us to move into the final design stage. our new starts rating we have achieved on this program is medium-high, a very, very good rating. we have ha

carter rohan, director of

rohan. a couple of questions about the actual tunneling. in the double slide, it seems like the construction there has been about three years as well. are you familiar with that project? >> no, sir, i'm not. >> it appears to be a much easier project than going under all the stuff in the city. >> that is the complexity, doing a subway in a city that has utilities, sewer, water, electric, you name it. there is a whole host of things in this city, and in some cases we have found some of it as we have gone on. we have had to find ways to deal with that, which are far outside the engineering realm when it comes to remains and things of that nature. it is very complex when we are talking about a tunneling job under a major urban city. >> do you have a time frame? >> they are doing samples, but you are always at risk of something that is not there in the drawings or the historical documentation. there is some risk in terms of crog across something that we didn't plan to. i think we have built in a certain amount of contingency there, and hopefully