NYC Subway: NIS R160B Siemens Leaving out of the 59th St portal onto the Sea Beach Exp Track to CIYD

This was taken in summer of 2023, this train came from the R and went out of service to head back to the yard to be stored for the night. They decided to send this train express like they normally do. This was taken from an overpass.

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Where is that

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an overpass