Did you know that 2017 represents the 103rd Anniversary of R line service via the Montague Street Tunnel between Manhattan and Brooklyn?
The original construction of the tunnel by the Brooklyn Manhattan Rapid Transit (BMT) company cost $10 million in 1914. Less than 10 years later, there was a proposal to build a tunnel between 69th Street in Bay Ridge and St. George on Staten Island.
Ground was broken for entrances at both ends in the 1920's, but the project quickly ran out of money and was abandoned to history.
While living on Shore Road in Bay Ridge, friends and I would look to no avail for the abandon site filled in decades earlier.