From Blackwell's Island to Roosevelt Island

For more than a century, the island was home to New York City institutions, including a penitentiary, an asylum, a workhouse, an almshouse, and hospitals.

Beginning in the late 1960s, the island was redeveloped as a residential community. Many of the former institutions were demolished or converted, while new housing, parks, transportation, and public spaces were built.

The Smallpox Hospital is one of the buildings that remains.

Roosevelt Island from the water
The island's southern end, Touhey Photography

The island's names

Minnahanonck

Before 1686

Blackwell's Island

1686—1921

Welfare Island

1921—1973

Roosevelt Island

1973—today

The island was known as Minnahanonck before the Blackwell family acquired it in 1686.

The city called it Blackwell's Island until 1921, when it became Welfare Island.

In 1973, it was renamed Roosevelt Island.

Southpoint Park

The Smallpox Hospital stands at the southern end of Roosevelt Island, within Southpoint Park.

Immediately south is Franklin D. Roosevelt Four Freedoms State Park, designed by Louis Kahn and opened in 2012. Together, the two sites form a remarkable concentration of New York's architectural and public history.

The Smallpox Hospital was designed by James Renwick Jr. and completed in 1856 as a hospital for the treatment and isolation of people with smallpox.

Island chronology

  1. Before 1686

    Minnahanonck

    Minnahanonck was an early name for the island, used by Indigenous people in the region.

  2. 1686

    The Blackwells

    The Blackwell family farms the island until 1828. The Blackwell farmhouse, built around 1796, still stands near the center of the island.

  3. 1828

    The purchase

    New York City purchases the island and begins developing it for municipal institutions, including prisons, asylums, and hospitals. Its location in the East River provided separation from Manhattan.

  4. 1832

    The Penitentiary

    The New York City Penitentiary opens. Prison labor was used to construct many of the island’s institutions.

  5. 1841

    The Octagon

    The New York City Lunatic Asylum opens, with a rotunda designed by Alexander Jackson Davis. Charles Dickens visits in 1842. The rotunda survives today as part of an apartment building.

  6. 1856

    The Smallpox Hospital

    The Smallpox Hospital is completed at the southern end of the island. Designed by James Renwick Jr., it treats people with smallpox, including both charity and paying patients.

  7. 1887

    Nellie Bly

    Journalist Nellie Bly has herself committed to the asylum on Blackwell’s Island and publishes Ten Days in a Mad-House. Her reporting leads to a grand jury investigation and increased funding for the city’s asylums.

  8. 1921

    Welfare Island

    Blackwell’s Island is renamed Welfare Island. The island’s institutions increasingly focus on hospitals and long-term care. The penitentiary closes in 1935 and moves to Rikers Island.

  9. 1969

    A new plan

    New York State’s Urban Development Corporation signs a 99-year lease with New York City to redevelop the island. Philip Johnson and John Burgee prepare a master plan for a new residential community.

  10. 1973

    Roosevelt Island

    The island is renamed for Franklin D. Roosevelt. Louis Kahn is commissioned to design a memorial at the southern tip.

  11. 1975

    Housing

    The first residents move into Island House, the first residential building of the island’s redevelopment. The other first-phase housing complexes follow in 1976.

  12. 1976

    The tram

    The Roosevelt Island Tramway opens as a temporary connection to Manhattan, until a subway connection can be built. The subway finally arrives in 1990, but the tram has become a permanent part of the island’s transportation network. Ferry service eventually comes, too. The NYC Ferry begins serving Roosevelt Island in 2017, connecting the island to Manhattan, Queens, and Brooklyn.

  13. 2012

    Four Freedoms

    Franklin D. Roosevelt Four Freedoms State Park opens at the southern tip of the island. Designed by Louis Kahn, the park commemorates Roosevelt and the four freedoms articulated in his 1941 address to Congress.

  14. 2017

    Cornell Tech

    Cornell Tech opens on part of the former Goldwater Hospital site. The campus becomes another new use for land once occupied by the island’s institutions.

  15. Today

    Roosevelt Island

    Roosevelt Island is now a residential community with housing, parks, public institutions, and Cornell Tech. The Smallpox Hospital remains at its southern end.

The Smallpox Hospital is fenced off and is not open to the public.

Its walls require stabilization before the site can be opened.

Friends of the Ruin is working to preserve the building and make the site accessible to the public.

Current photograph of the ruin