Did the 1962 Escape Close Alcatraz? Myth Versus Record

The 1962 escape by Frank Morris and the Anglin brothers is the event most people name when asked why Alcatraz closed. The record tells a different story: the penitentiary closed on 21 March 1963 mainly because it had become too expensive to run and too worn out to keep. The Federal Bureau of Prisons found that operating a prison on an island, with everything shipped in by boat, cost far more per inmate than any other federal prison, and salt air was eating the buildings.

Below is how the escape fits among the other pressures, and where historians and official sources agree. The separate page on why Alcatraz Penitentiary closed in 1963 gives a shorter list of the reasons and an account of the last day.

A prison built for a different era

The island became a federal penitentiary in 1934, when the Bureau of Prisons wanted a place for inmates who had caused trouble elsewhere. It was meant as a last stop for the hardest cases, not a general prison. The army’s old military prison buildings were converted for the purpose. The details of that conversion are covered in the history of how Alcatraz became a federal penitentiary in 1934.

That purpose shaped the long-term problem. By the late 1950s the Bureau had been moving toward a different model: prisons on the mainland, with space for work programmes, education and more flexible custody. A small, isolated cell house held a few hundred men at most. It did not fit the plan.

The cost problem

Alcatraz had no natural water supply for its population. Fresh water, food, fuel and supplies all came across the bay by boat, and staff and their families lived on the island or commuted by launch. According to National Park Service accounts, the cost per inmate was several times higher than at other federal prisons.

Exact figures are quoted differently across sources, and daily-cost numbers are often repeated without a citation, so it is safest to rely on the Bureau’s own statement that the island was the most expensive penitentiary in the system to run. The general point is not disputed.

The state of the buildings

Salt water is hard on concrete and steel. Over three decades, corrosion reached the reinforcing steel inside the cell house, and sections of masonry were failing. Sources describing the closure say that the repair bill would have been very large, and that building a replacement made more sense than rebuilding the island.

This is the part of the story that is easiest to overlook. The argument was not that the island was about to collapse. The case was that repairing it would cost more than replacing it.

What role did the 1962 escape play?

The June 1962 escape by Frank Morris and John and Clarence Anglin embarrassed the Bureau. It showed that the cell blocks could be breached from the inside. But the decision to close had been under discussion for years. James V. Bennett, the Bureau’s director through the 1950s, had long argued that Alcatraz should shut, partly because of the expense.

Most sources therefore describe the escape as one more pressure rather than the deciding one. It may have sped up the schedule, but the underlying reasons were already in place. For the full story of that night, see the longer account of escape attempts from Alcatraz.

How the closure happened

Attorney General Robert F. Kennedy was in office when the decision was carried out. The last group of prisoners left the island on 21 March 1963 and was transferred to other institutions. Over the penitentiary’s lifetime, fewer than 1,600 men were held there in total, according to the Bureau of Prisons; at any one time the population was only a few hundred.

The inmates were sent to a number of federal prisons, and the Bureau opened a new high-security facility in Marion, Illinois, to take on the role Alcatraz had played. Marion became the new place for hard-to-manage prisoners.

What happened after 1963

The island sat unused for several years. In 1969 a group of Native American activists occupied it, which is described in the page on the Indian occupation of Alcatraz. It later became part of the Golden Gate National Recreation Area and is now operated by the National Park Service as a historic site open to visitors. Opening times and ferry arrangements change, so check the National Park Service website before planning a visit.

The island’s own limits

Space was a further issue. The cell house held a small number of men compared with the larger prisons the Bureau was planning, and there was little room on the rock for workshops, classrooms or expanded facilities. A penitentiary designed to isolate men could not easily be adapted into one built around work and training. Staff housing, a power plant and the water supply all needed upkeep, and each repair meant moving materials and workers across the bay.

Frequently asked questions

When did Alcatraz close?

The last inmates left on 21 March 1963. The Bureau of Prisons operated the penitentiary for just under 29 years, from August 1934.

Did the 1962 escape close Alcatraz?

Not on its own. The decision was driven by high running costs and deteriorating buildings, and it had been debated before the escape. The escape added pressure but was not the sole cause.

Why was Alcatraz so expensive?

Everything had to be brought to the island by boat, including drinking water, food and fuel. Salt air also forced constant repair of the buildings, which added to the cost.

What replaced Alcatraz?

The Bureau of Prisons opened a new high-security penitentiary at Marion, Illinois, and spread the Alcatraz population across existing federal prisons.

Why it matters today

The closure is a useful case study in how prison policy moves from isolation toward larger mainland facilities. For more on the daily reality inside, the facts and figures page gives sentence lengths and routines.