
Eight-day build of 'Alligator Alcatraz' sparks safety concerns - as hurricane season looms
Sky News' Data and Forensics team has verified footage posted on social media that shows water covering the ground near electricity cables during a storm as the first detainees were due to arrive.
The Florida Division of Emergency Management (FDEM), run by Governor Ron DeSantis, posted on X that detainees were at the site on 3 July just before 1pm local time (6pm UK time).
Donald Trump held a tour of the facility on 1 July that took journalists around "Alligator Alcatraz". Its name is a reference to both the local reptile population and the former maximum-security Alcatraz Federal Penitentiary in San Francisco Bay, California.
The tour showed the rapid construction of the centre, designed to accommodate up to 3,000 detainees. The purpose of the site is to house individuals detained by US Immigration and Customs Enforcement (ICE).
James Uthmeier, Florida's attorney general, posted on X: "And in just a week, Alligator Alcatraz was built."
Political commentator Benny Johnson, who was on the tour, praised the eight-day turnaround. "I don't think anyone realises how impressive Alligator Alcatraz is," he said.
Amid those positive comments, videos emerged highlighting flooding in the centre, with electricity cables covered with water on the day of the tour.
The flooding was said to have been caused by a small storm. However, the state department claims the structures and tents can withstand category two hurricanes, reaching 110mph winds.
FDEM spokesperson Stephanie Hartman wrote in a statement that "vendors had tightened any seams at the base of the structures that allowed water to come in during the storm". She described the water intrusion as minimal.
Steff Gaulter, a Sky News meteorologist, said: "In the last 10 years, we've seen 13 hurricanes that have hit Florida. Seven of them have been category three or higher.
"As well as needing to know how strong these storms are as they come, it's also very unpredictable, their track can change at the last minute."
The American Society of Civil Engineers (ASCE) and the Structural Engineering Institute (SEI) have said structures in risk category two - which Alligator Alcatraz falls under - need to withstand 121mph wind gusts.
If the housing tents exceed 300 occupants per tent, the guidelines go up to 167mph.
Ms Gaulter explained: "You don't necessarily need a hurricane in order to see a gust of wind over 100mph. In the lowest category of hurricane, category one, the range of winds would be between 74mph and 95mph. But even in that category, you can easily get a gust of wind up to 120mph."
Dr Patrick McSharry, Professor at Carnegie Mellon University and former head of catastrophe risk financing at Oxford University, told Sky News that in a hurricane "there's no way that a tent is going to be in any way something that you would advise someone to be in".
"It's more the case of having a plan in place that can be mobilised really fast to get people out of that dangerous situation."
The site is also located in a hurricane-prone region as defined by ASCE.
Discussing building regulations, Dr McSharry said: "We're dealing here potentially with human lives so it's an even more sensitive calculation I think that needs to be made."
Sky News put these concerns to Ron DeSantis and the Florida state department, but did not receive responses.
White House spokeswoman Abigail Jackson told Sky News: "Alligator Alcatraz is a state-of-the-art facility that will play a critical role in fulfilling the president's promise to get the worst criminal illegal aliens out of America as fast as possible.
"President Trump is grateful to partner with [Homeland] Secretary [Kristi] Noem and Ron DeSantis on this important project."
Satellite imagery obtained by Sky News shows the rapid construction of the centre, which was formerly Dade-Collier Training Airport.
Five days after the centre was announced by Florida's attorney general James Uthmeier, more than 60 new trailers can be seen on the right-hand side of the runway.
Satellite imagery obtained by Sky News also shows that from 24 June to the opening date on 1 July, more than seven large housing tents were put up at the site.
The site is reportedly set to open with 3,000 beds, expanding to 5,000 by early July.
It is also reported that the site will cost an estimated $450m (£330m) per year to operate, with a bed costing $245 (£180) per day.
The bill is reported to be covered by the state of Florida, which plans to get money back from the Federal Emergency Management Agency (FEMA) and Department of Homeland Security (DHS).
Tessa Petit, director of the Florida Immigrant Coalition, told Sky News: "It was constructed too [quickly]. This is a sign that we're seeing a disaster [waiting to] happen as we look at it.
"Usual detention centres come up with, you know, their bricks and mortar, right? This is not bricks and mortar. This is just tents and mobile homes that are assembled on an airstrip."
"There's a detention of immigrants in a place that has been in the past ravaged by hurricanes and we're getting into hurricane season," Ms Petit added.
She is concerned that medical support and sanitary provisions, like a sewage system, will not have been properly installed.
"You can't build a sewage system that can sustain 3,000 people in eight days. You can't dig in the Everglades. So, what are going be the additional sanitary conditions?" she said.
There are also sustainability concerns about the site.
The Centre for Biological Diversity has filed a lawsuit in US District Court to protect the Florida Everglades. They state it is "a reckless plan to build a massive detention centre for people caught in immigration raids".
Tania Galloni, an attorney working with the Centre for Biological Diversity, stated the proposed plan "has not undergone the environmental review required by federal law, and the public has had no chance to provide feedback".
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