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| Re: Tuscarora Almanac for September 10 (1523633) | |||
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Re: Tuscarora Almanac for September 10 |
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Posted by W.B. on Wed Sep 11 19:42:11 2019, in response to Re: Tuscarora Almanac for September 10, posted by Steve B-8AVEXP on Wed Sep 11 18:25:39 2019. From 45th Street on south, the Fourth Avenue line appears to have been built with structural steel as opposed to the reinforced concrete from 36th Street on north. I measured (from the upper mezzanine) the separation of the tracks at 45th, and it was the minimum (for BMT/IND clearances) 13' 6" rather than 14' as on most of the Fourth Avenue line. The 15' height from the base of rail, however, held right up to the end at 95th Street.It did seem how the columns were put together on the structural steel sections differed from the rest of the system. However, the same types of steel sections - American Standard 'S' shape 'I' beams for the sidewalls and roofs - would have been used. I'll have to check as to the columns separating each track. |
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