|Locale||Upper New York Bay|
|Dates of operation||2006–|
|Predecessor||New York Cross Harbor Railroad|
|Track gauge||4 ft 8 1⁄2 in (1,435 mm) standard gauge|
|Length||2.5 miles (4 kilometers)|
|Headquarters||Greenville, Jersey City, New Jersey|
New York New Jersey Rail, LLC ( reporting mark NYNJ) is a switching and terminal railroad  that operates the only car float operation across Upper New York Bay between Jersey City, New Jersey and Brooklyn, New York. Since mid-November 2008, it has been owned by the Port Authority of New York and New Jersey, which acquired it for about $16 million as a step in a process that might see a Cross-Harbor Rail Tunnel completed.
Since freight trains are not allowed in Amtrak's North River Tunnels, and the Poughkeepsie Bridge was closed in 1974, the ferry is the only freight crossing of the Hudson River south of the Alfred H. Smith Memorial Bridge, 140 miles (230 km) to the north of New York City, in a process known as the Selkirk hurdle.  It is the last remaining car float operation in the Port of New York and New Jersey. 
NYNJ leases approximately 27 acres (11 ha) of land at Conrail's Greenville Yard in Greenville, Jersey City, where it connects with Class I railroads CSX Transportation and Norfolk Southern Railway, which jointly operate Conrail's North Jersey Shared Assets Area. On the Bay Ridge, Brooklyn end, the 6-acre (2.4 ha) Bush Terminal Yard and the 65th Street Yard connect to the Long Island Rail Road's freight-only Bay Ridge Branch, which is operated by the New York and Atlantic Railway, and the New York City Transit Authority's South Brooklyn Railway. The 2.5 mile barge trip across the harbor takes approximately 45 minutes. The equivalent trip by truck is 35-50 miles. 
As of 2012, the NYNJ system moves approximately 1,500 rail cars across the harbor per year. Port Authority officials suggested that the system can transport as many as 25,000 cars annually.   NYNJ replaced two EMD GP38-2 with three low-emission locomotives from Knoxville Locomotive Works in Tennessee for $5 million. As of July 2015, the system had moved about 4900 rail cars year-to-date. 
From 1983 to 2006, the operation was known as the New York Cross Harbor Railroad ( reporting mark NYCH). Earlier predecessors include the Brooklyn Eastern District Terminal Company, Bush Terminal Railroad, New York Dock Railway, and New York, New Haven & Hartford Railroad and Pennsylvania Railroad operations at Bay Ridge and Greenville.
In 1999 the city of New York rehabilitated the larger 65th Street Yard for car float operations with two lift bridges. It was not turned over to NYCH because of a dispute over money owed the city. NYCH continued to use the single lift bridge at Bush Terminal instead. In 2002, New York Cross Harbor Railroad revenues from railroad operations were $1,685,899. It had 48 active customers, with shipments of cocoa from docks in Brooklyn as its largest line of business. It also operated a trucking service and offered shipside and dockside service for receipt or delivery of various types of cargo, such as oversized steel beams. 
NYCH ceased to exist in 2006; a new company, Mid-Atlantic New England Rail, LLC of West Seneca, New York, bought the railroad and renamed it New York New Jersey Rail, LLC (NYNJ). The city of New York purchased the company two years later.
The Port Authority began working with government agencies in New York and New Jersey to bring NYNJ to a state of good repair. This includes emergency work to stabilize the transfer bridge structure in Greenville, repairs to the float bridge and track infrastructure in Brooklyn, and procurement of ultra-low emissions locomotives and a new 30-car rail barge.  In May 2010 the Port Authority announced that it would purchase Greenville Yard and build a new barge-to-rail facility there, as well as improving the existing rail car float system. The barge-to-rail facility is expected to handle an estimated 60,000 to 90,000 containers of solid waste per year from New York City, eliminating up to 360,000 trash truck trips a year. The authority's board authorized $118.1 million for the overall project. 
In November 2011 the Port Authority hired HDR, Inc. of Omaha, Nebraska to rehabilitate Greenville Yard. Work included rehabilitating the railyard and waterfront structures, including a rail barge and transfer bridge, demolishing two other bridges, designing a new barge and two new bridges, and adding 10,000 feet of track.   In July 2012 NYNJ began operating out of the 65th Street Yard. Initial cargo included apples, home heating oil, new automobiles, and scrap metal.  The railroad north along First Avenue was refurbished and new tracks laid to support operations at the South Brooklyn Marine Terminal, including an automobile import pier and a new municipal recycling plant. 
On October 29, 2012 Hurricane Sandy caused major damage to the Greenville facility, undermining the float bridge gantries and sinking one of the car floats. The 81-year-old gantry structures were ultimately demolished. The working float bridge at Bush Terminal was transferred by barge to Greenville, where it was re-designated the Greenville Pontoon Bridge. Service was restored in late December, after 52 days of intensive reconstruction. 
On September 17, 2014 the Port Authority announced that it was funding a major redevelopment of the Greenville Yard, to include a new ExpressRail container terminal servicing the Global Marine Terminal. The Port Authority will also build two new rail to barge transfer bridges, purchase two new car float barges, and buy four new ultra low emission locomotives. The new facility is expected to become operational in July 2016.  
In November 2017, the first of the new barges was delivered to NYNJ. Built by Metal Trades, Inc., Yonges Island, S.C., the four-track barge can carry up to 18 rail cars of 60’ length, with up to 2,298 long tons (2,335 tonne) of cargo. 
- Rail freight transportation in New York City and Long Island
- New York Connecting Railroad
- National Docks Secondary
- Gantry Plaza State Park
- New York Central Railroad 69th Street Transfer Bridge
- Port Jersey
- CG Railway, operates a train ferry connecting southern Mexico with Mobile, Alabama.
- Association of American Railroads, About the Industry: Railroads and States Archived December 1, 2008, at the Wayback Machine., 2006, accessed December 2008
- "Top Officials and Stakeholders Meet to Launch Project That Will Study Regional Freight Movement Issues" (Press release). Port Authority of New York and New Jersey. November 13, 2008. Retrieved October 29, 2011.
- Patrick McGeehan (November 13, 2014). "Truck Traffic in Mind, Port Agency Considers Plans for a Slow Boat to Brooklyn". The New York Times. Retrieved June 11, 2017.
- NYRR 10-K SEC filing for 2003
- Barry Newman (May 20, 2012). "New York's Last Cross-Harbor Railway Chugs On as Alternative to Trucks: Barges Float Boxcars Into Town, Sludge Out; Cocoa Beans at the Bottom of the Bay". The Wall Street Journal.
- NJTPA Freight Committee, October 2012
- Steve Strunsky (August 18, 2015). "N.J. is home to the last rail cars moved by water in the East (PHOTOS & VIDEO)". NJ.com. Retrieved June 11, 2017.
- Ken Spahn (April 2, 2009). "Rail Freight Development Program" (PDF). Port Authority of New York and New Jersey. Archived from the original (PDF) on July 28, 2011. Retrieved August 18, 2009.
- "Port Authority Board Approves Purchase and Redevelopment of Greenville Yards" (Press release). Port Authority of New York and New Jersey. May 18, 2010. Retrieved October 29, 2011.
- [ dead link]
- "Port Authority of New York and New Jersey Hires HDR to Rehabilitate Greenville Yard". HDR, Inc. November 16, 2011. Archived from the original on December 15, 2014. Retrieved December 12, 2014.
- Winnie Hujuly (July 19, 2012). "65th Street Rail Yard Reopens in Brooklyn". The New York Times. Retrieved June 11, 2017.
- "South Brooklyn Marine Terminal". NYCEDC. September 12, 2016. Retrieved June 11, 2017.
- "New York New Jersey Rail". Members.trainweb.com. December 21, 2012. Retrieved June 11, 2017.
- Port Authority Board Approves Major Redevelopment Of Greenville Yard To Improve Cargo Movement In The Port, Port Authority Press Release Number 190-2014, September 17, 2014
- New York-area port authority to build rail transload facility, improve cross-harbor car float system, Progressive Railroading, September 18, 2014
- Metal Trades delivers New York rail float barge, Kirk Moore, WorkBoat, November 10, 2017, accessed February 15, 2017
- Geiger, Daniel (July 14, 2017). "With Gateway in limbo, Port Authority pushes ahead on separate tunnel project". Crain's New York Business. Retrieved July 20, 2017.
- Industrial & Offline Terminal Railroads of Brooklyn, Queens, Staten Island, Bronx & Manhattan: New York New Jersey Rail[ permanent dead link]
- NYCH image gallery at archive.org
- New York Rail Marine photo pool on Flickr