Façade specialist seele realized a free-form steel-and-glass roof for the Moynihan Train Hall in New York City.

5,339sqm

free-form steel-and-glass roof

3,160

insulating glass units

624t

structural steelwork

moynihan train hall - a 5,339sqm free-form steel-and-glass roof

A new train hall for inter-city and local rail traffic is being built in the heart of New York City. To house the new Moynihan Train Hall, the historic James A. Farley Post Office building is being totally remodelled, although the existing building will be retained. Situated in Manhattan, the new station is being built to serve as a concourse to the nearby Pennsylvania Station and thus create more capacity for the growing number of passengers (currently more that 650,000 daily).

  • For this project, seele has been appointed to carry out the fabrication and erection of three free-form roof structures in steel and for the design, fabrication and installation of the aluminium-glass skin above the structural steelwork. The roof over the train hall will be formed by four 16m wide curving barrel vaults that cover a total area of about 3,000sqm. Restaurants and retail will surround a hall with an area of 1,044sqm at the midblock entrances, underneath the smaller of the project’s glass roofs. The new roof structure joins up with the existing steel structure and consists of a gridshell of welded steel T-sections with tensioned cables. Separate aluminium-and-glass elements are fitted into the gridshell structure. A total of 3,160 insulating glass units and 624t of steel are required for this structure.

    Header image: © Empire State Development / SOM, Methanoia

  • seele was comissioned to manufacture the free-form steel-and-glass roof for the moynihan train hall.
  • The new roof structure from seele joins up with the existing steel structure and consists of a gridshell of welded steel T-sections with tensioned cables.
  • The free-form roof will be formed by four 16m wide curving barrel vaults that cover for example restaurants and retail in the Moynihan Train Hall.
seele was comissioned to manufacture the free-form steel-and-glass roof for the moynihan train hall.
© Empire State Development / SOM, Methanoia
The new roof structure from seele joins up with the existing steel structure and consists of a gridshell of welded steel T-sections with tensioned cables.
© Empire State Development / SOM, Methanoia
The free-form roof will be formed by four 16m wide curving barrel vaults that cover for example restaurants and retail in the Moynihan Train Hall.
© Empire State Development / SOM, Methanoia

project diary

Installation progress at Moynihan Train Hall

Every component and element at Moynihan Train Hall is a one-off. Such diversification requires highly precise planning and execution right across design, production, logistics and work on site. Therefore, seele provides two mock-ups, which are required for visual and performance tests.

  • 08/2019
  • 07/2019
  • 06/2019
  • 03/2019
  • 01/2019
  • 12/2018
  • 12/2018
  • 11/2018
  • 07/2018
  • 04/2018
  • 12/2017
  • 10/2017
  • 09/2017

08/2019

While sealing work on the other roof structures is in progress, assembly of the steel structure for the Farley Skylight began in July and was completed in August.
08/2019

07/2019

On 17/07/2019, a milestone was set with the installation of the last aluminium-glass-element of the Train Hall.
07/2019

06/2019

Three of the domes of the Train Hall are already glazed and installation of the elements on the fourth dome will begin shortly.
06/2019

03/2019

Glazing works at the Train Hall are in full swing while the glazing at Mid Block is already completed.
03/2019

01/2019

Steel construction works at Moynihan Train Hall continue to progress: two roofs of the Train Hall and parts of the Mid Block are now enclosed to ensure that the weather-sensitive work can continue during winter.
01/2019

12/2018

The assembly of the steel construction for the Train Hall is also progressing. © Skanska
12/2018

12/2018

All glazed units are installed at the Mid Block. © Skanska
12/2018

11/2018

In October, seele was able to start glazing works at the Mid Block. In total, seele manufactures and assembles around 3,000 aluminum-glass elements for the roof structures.
11/2018

07/2018

The assembly of the steel ladders at the Mid Block and the Train Hall is in full swing. © Skanska
07/2018

04/2018

During the last months, pre-assemblies for the roof construction have been carried out and the steel ladders have been delivered. On April 9, the first steel ladder was installed on the Mid Block.
04/2018

12/2017

Starting to work on site.
12/2017

10/2017

Visual approval of the mock-up.
10/2017

09/2017

Two mock-ups for visual and performance tests at seele's testing area in Gersthofen, Germany.
09/2017

Credits

Client Empire State Development
General contractor Skanska USA Civil Northeast, Inc.
Main contractor Skanska USA Civil Northeast, Inc.
Architect Skidmore, Owings & Merril LLP
Engineer Schlaich Bergermann Partner
Date of completion 2019
Scope of seele supply

4,950sqm free-form steel-and-glass roof (member-node system with tensioned cable)

  • 2,936 insulating glass units with solar coating and frit
  • 578t structural steelwork
  • 3,463sqm roof surface over train hall
  • 1,264sqm roof surface over mid block hall