The station is more than 10 stories deep, placing it among the system's deepest.
The North River Tunnels and the planned Gateway Program tunnels, which pass under the Hudson River a block to the west of the station, pass over the station by approximately 35 feet (11 m).
The station, which is 125 feet (38 m) below street level, and 108 feet (33 m) below sea level in total, is the third deepest subway station in the entire system, behind 190th Street and 191st Street stations; as a result, nine escalators were installed at the station.
In addition, passenger access to the station includes a pair of custom-made incline elevators, which are installed in the southernmost of the two shafts between the upper and lower mezzanines, at the 34th Street end of the station.
In April 2014, the first of two 172-foot-long (52 m) incline elevators was installed in the station.
The elevators are relatively slow in order to discourage unnecessary use by non-disabled riders.
These incline elevators make the station the first to be built to comply with the Americans with Disabilities Act of 1990 (ADA).

The 80-foot (24 m) high incline elevators, which move at 100 feet (30 m) per minute (making an entire trip between the mezzanine levels in less than two minutes) and are sloped at a 27-degree angle, are the first of their kind in the system.
Each elevator can hold up to 15 standing passengers or five wheelchair passengers.
The inclined elevators were less expensive than vertically-traveling elevators, and were installed within the large escalator shaft at 34th Street.
However, as the incline elevators had originally failed a factory test by its manufacturer Maspero Elevatori, there were multiple delays in opening the station, and the opening date was eventually delayed from December 2013 to late 2014, then to mid-2015.

The use of inclined elevators was intended to provide wheelchair-bound patrons with a shorter, easier path to the train platform as well as to reduce tunneling costs.
The two elevators were manufactured by Maspero Elevatori, in Appiano Gentile, Italy, using a controller made on Long Island, speed governors made in Ohio, and buttons and other parts in Queens.
The software for the elevator was written in the United States.
Maspero Elevatori assembled the elevators in Italy, and they failed an operational test there, prior to being shipped to the United States.
The MTA said the manufacturer chose to use American subcontractors in place of local Italian suppliers after reading the specifications the transit agency submitted.
The MTA worked with the manufacturer to try to resolve the problems caused by a very high level of customization.
The station is more than 10 stories deep, placing it among the system's deepest. The North River Tunnels and the planned Gateway Program tunnels, which pass under the Hudson River a block to the west of the station, pass over the station by approximately 35 feet (11 m). The station, which is 125 feet (38 m) below street level, and 108 feet (33 m) below sea level in total, is the third deepest subway station in the entire system, behind 190th Street and 191st Street stations; as a result, nine escalators were installed at the station. In addition, passenger access to the station includes a pair of custom-made incline elevators, which are installed in the southernmost of the two shafts between the upper and lower mezzanines, at the 34th Street end of the station. In April 2014, the first of two 172-foot-long (52 m) incline elevators was installed in the station. The elevators are relatively slow in order to discourage unnecessary use by non-disabled riders. These incline elevators make the station the first to be built to comply with the Americans with Disabilities Act of 1990 (ADA).
The 80-foot (24 m) high incline elevators, which move at 100 feet (30 m) per minute (making an entire trip between the mezzanine levels in less than two minutes) and are sloped at a 27-degree angle, are the first of their kind in the system. Each elevator can hold up to 15 standing passengers or five wheelchair passengers. The inclined elevators were less expensive than vertically-traveling elevators, and were installed within the large escalator shaft at 34th Street. However, as the incline elevators had originally failed a factory test by its manufacturer Maspero Elevatori, there were multiple delays in opening the station, and the opening date was eventually delayed from December 2013 to late 2014, then to mid-2015.
The use of inclined elevators was intended to provide wheelchair-bound patrons with a shorter, easier path to the train platform as well as to reduce tunneling costs. The two elevators were manufactured by Maspero Elevatori, in Appiano Gentile, Italy, using a controller made on Long Island, speed governors made in Ohio, and buttons and other parts in Queens. The software for the elevator was written in the United States. Maspero Elevatori assembled the elevators in Italy, and they failed an operational test there, prior to being shipped to the United States. The MTA said the manufacturer chose to use American subcontractors in place of local Italian suppliers after reading the specifications the transit agency submitted. The MTA worked with the manufacturer to try to resolve the problems caused by a very high level of customization.
34th Street–Hudson Yards station