As a result of the Great Depression, James Ruderman leaves and the independent practice of Fred N. Severud is established.

The firm is retained to design the Bank of America Tower at One Bryant Park in New York City. The project, which employs a hybrid steel-first and concrete core, is completed in 2010.

Tibor Szegezdy becomes a partner of the firm, now known as Severud-Perrone-Szegezdy-Sturm.

The firm is retained to design a bank and office building in Hackensack, NJ. It is the first of many office building projects for which the firm will become well known.

The firm is retained to design a theater for the Warners’ chain in Morgantown, WV . It is among the first of many theater projects that will carry the firm through the Great Depression.

As a result of the Great Depression, James Ruderman leaves and the independent practice of Fred N. Severud is established.

The firm is retained to design the Bank of America Tower at One Bryant Park in New York City. The project, which employs a hybrid steel-first and concrete core, is completed in 2010.

Tibor Szegezdy becomes a partner of the firm, now known as Severud-Perrone-Szegezdy-Sturm.

The firm participates in the recovery efforts at the World Trade Center after the attacks of 9/11. Principal Edward DePaola is president of the Structural Engineers Association of New York, which coordinates the effort with the NYC Department of Buildings.

The firm is retained to consult on reconstruction of the Hyatt Regency Hotel in Kansas City, MO after the collapse of two suspended walkways.

The firm is retained to design renovations and an addition to the Solomon R. Guggenheim Museum in New York City. The project is completed in 1992.

Alfred Perrone, Werner Sturm, and Hannskarl Bandel become partners of the firm, now known as Severud-Perrone-Sturm-Bandel (1960).

As a result of the Great Depression, James Ruderman leaves and the independent practice of Fred N. Severud is established.

The firm is retained to design the Bank of America Tower at One Bryant Park in New York City. The project, which employs a hybrid steel-first and concrete core, is completed in 2010.

Tibor Szegezdy becomes a partner of the firm, now known as Severud-Perrone-Szegezdy-Sturm.

As a result of the Great Depression, James Ruderman leaves and the independent practice of Fred N. Severud is established.

The firm is retained to design the Bank of America Tower at One Bryant Park in New York City. The project, which employs a hybrid steel-first and concrete core, is completed in 2010.

Tibor Szegezdy becomes a partner of the firm, now known as Severud-Perrone-Szegezdy-Sturm.

As a result of the Great Depression, James Ruderman leaves and the independent practice of Fred N. Severud is established.

The firm is retained to design the Bank of America Tower at One Bryant Park in New York City. The project, which employs a hybrid steel-first and concrete core, is completed in 2010.

Tibor Szegezdy becomes a partner of the firm, now known as Severud-Perrone-Szegezdy-Sturm.

The firm is retained to design a bank and office building in Hackensack, NJ. It is the first of many office building projects for which the firm will become well known.

The firm is retained to design a theater for the Warners’ chain in Morgantown, WV . It is among the first of many theater projects that will carry the firm through the Great Depression.

As a result of the Great Depression, James Ruderman leaves and the independent practice of Fred N. Severud is established.

The firm is retained to design the Bank of America Tower at One Bryant Park in New York City. The project, which employs a hybrid steel-first and concrete core, is completed in 2010.

Tibor Szegezdy becomes a partner of the firm, now known as Severud-Perrone-Szegezdy-Sturm.

Tibor Szegezdy becomes a partner of the firm, now known as Severud-Perrone-Szegezdy-Sturm.

The firm is retained to design signage, renovations, and additional tenant amenities at 3 Times Square in New York City.

The firm participates in the recovery efforts at the World Trade Center after the attacks of 9/11. Principal Edward DePaola is president of the Structural Engineers Association of New York, which coordinates the effort with the NYC Department of Buildings.

Fridtjov Nikolai Sæverud graduates from the Norwegian Institute of Technology in Trondheim, Norway with a degree in civil and structural engineering. Shortly thereafter, he marries and emigrates to New York City.