The extension routed the el over the railroad's Putnam Bridge, and the railroad was cut back to a new terminal on the Bronx side called Sedgwick Ave, where there had not been a station before. From here the el was pointed directly at a spur of rock. The IRT blasted a tunnel for three blocks to the other side, and then continued the line by elevated to meet the City's Jerome Ave line at 162 St, which is over River Ave at that point.
There's still some original tiling in the old stairwells.
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The "underground" portion only ran for about one car length.1.
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And of course random photos
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