Cobble Hill Tunnel
Channel: all the knowledge of the universe PRINCIPIA
Date: 2021-12-06

Cobble Hill Tunnel, by Wikipedia https://en.wikipedia.org/wiki?curid=2244 / CC BY SA 3.0

#Transportation_buildings_and_structures_in_Brooklyn
#Long_Island_Rail_Road
#Railway_tunnels_on_the_National_Register_of_Historic_Places
#Railroad_tunnels_in_New_York_City
#History_of_transportation_in_New_York_City
#National_Register_of_Historic_Places_in_New_York_City
#Historic_districts_on_the_National_Register_of_Historic_Places_in_New_York_(state)
#Tunnels_completed_in_1844
#Cobble_Hill,_Brooklyn
#National_Register_of_Historic_Places_in_Brooklyn
The Cobble Hill Tunnel （also known as the Atlantic Avenue Tunnel） is an abandoned Long Island Rail Road （LIRR） tunnel beneath Atlantic Avenue in Brooklyn, New York City, running through the neighborhoods of Downtown Brooklyn and Cobble Hill.
When open, it ran for about 2,517 feet （767 m） between Columbia Street and Boerum Place.
It is the oldest railway tunnel beneath a city street in North America that was fully devoted to rail.
It's also deemed the oldest subway tunnel in the world by the Guinness Book of World Records.
Originally built as an open cut, construction began in May 1844, and opened for use on December 3, 1844, but was not completely finished until mid-1845.
It was built mainly to satisfy public demand for creation of a grade-separated right of way for the Brooklyn and Jamaica Railroad （later Long Island Rail Road） on its way to the South Ferry at the foot of Atlantic Street （later Atlantic Avenue）,
where passengers could catch ferries to Manhattan.
The construction of the cut also lowered the LIRR's grade through Cobble Hill.
Around five years after opening the cut was roofed over, converting it into a tunnel.
As originally built, the cut was 21 feet （6.4 m） wide and 2,517 feet （767 m） long.
Once roofed over the interior height of the newly created tunnel was 17 feet （5.2 m）.
In exchange for building the cut, the City of Brooklyn granted the B&J permission to operate its steam locomotives on Atlantic Street west of F...