Jean Chatelier walks through a flooded street in Fort Myers David Goldman / AP/PA Images David Goldman / AP/PA Images / AP/PA Images

RESIDENTS WERE ALLOWED to return to some islands in the hurricane-slammed Florida Keys today as officials tried to piece together the scope of Irma’s destruction and rushed aid into the drenched and debris-strewn state.

Two days after the storm roared into the Keys with 209kph winds, there was still a question mark over the full extent of the destruction because communications and access were cut off in many cases.

But residents and business owners from Key Largo, Tavernier and Islamorada near the mainland were allowed back for their first look.

The Lower Keys — including the chain’s most distant and most populous island, Key West, with 27,000 people — were still off-limits, with a roadblock in place where the single highway to the farther islands was washed out. Road repairs were promised in the coming days.

Pierre Ghantos and his son Nathan paddle through a Fort Myers street David Goldman / AP/PA Images David Goldman / AP/PA Images / AP/PA Images

Corey Smith, a UPS driver who rode out the hurricane in Key Largo, said today that power was out on the island, there was very limited fuel and supermarkets were closed. Branches and other brush blocked some roads.

“They’re shoving people back to a place with no resources,” he said by telephone. “It’s just going to get crazy pretty quick.”

Still, he said people coming back to Key Largo should be relieved that many buildings escaped major damage.

This morning, the rainy remnants of Irma pushed through Alabama and Mississippi after drenching Georgia. Flash-flood watches and warnings were issued around the south-east.

Larry Dimas walks around his trailer in Immokalee Gerald Herbert AP / PA Images Gerald Herbert AP / PA Images / PA Images

Seven deaths in Florida have been blamed on Irma, along with two in Georgia and one in South Carolina. At least 35 people were killed in the Caribbean.

An estimated 13 million Florida residents were without electricity — two-thirds of the state’s population — as sweltering heat returned across the peninsula in the storm’s wake.

More than 180,000 people huddled in shelters in Florida, and officials warned it could take weeks for electricity to be restored to everyone.

Olga Teakell hugs her grandson Gabriel Melendez outside their destroyed home in Naples Gerald Herbert Gerald Herbert

“I know for our entire state, especially the Keys, it’s going to be a long road,” Governor Rick Scott said.

Off Florida’s southern tip, authorities were stopping people to check documentation such as proof of residency or business ownership before allowing them back into the Upper Keys. All three hospitals on the island chain were still closed.

Residents of the Florida Keys have been returning home. Google Maps Google Maps

After flying over the Keys yesterday, the governor described overturned mobile homes, washed-ashore boats and other damage. A Navy aircraft carrier was due to anchor off Key West to help in the search-and-rescue effort.

Key West resident Laura Keeney waited in a Miami hotel for word that it was safe to return home, and she was anxious to hear more about her apartment complex. Her building manager told her about flooding there, but further updates were hard to come by because of limited phone service.

“They told me there is definitely water in the downstairs apartment, which is me,” said Keeney, who works as a hotel concierge.

Julie Robles walks through a flooded street in Immokalee Gerald Herbert AP / PA Images Gerald Herbert AP / PA Images / PA Images

Lower Keys resident Leyla Nedin said she doesn’t plan to return anytime soon to her home near where Irma came ashore on Cudjoe Key.

“There are still nine bridges that need final inspections. Plus we are still without water, power, sewer, gas and cell service,” she said. “My concern is that even if we get to go in to the Lower Keys, our fragile infrastructure could be even more compromised.”

The Keys are linked by 42 bridges that have to be checked for safety before motorists can be allowed on the farther islands, officials said. County officials said crews were working to reopen US 1 as quickly as possible.

Rick Freedman surveying the damage on Marco Island David Goldman AP / PA Images David Goldman AP / PA Images / PA Images

In a parting blow to the state, the storm caused record flooding in the Jacksonville area.

The Jacksonville Sheriff’s Office said 356 people were rescued from the floodwaters yesterday. On its Twitter account, the sheriff’s office said it hopes “people who had their lives saved yesterday will take evacuation orders seriously in the future”.

Paul Johnson and Shonda Brecheen spent Sunday night in a house they were remodelling near downtown Jacksonville after working late on the project. Johnson woke up yesterday to see boats passing by where cars normally drive.

They managed to push his truck through standing water to a parking lot to dry out, but he’s worried about the swamped vehicle.

“I’m 32, I’ve lived here most of my life, and I’ve never seen anything like that,” he said.

Read: Irma downgraded to tropical storm but 6.2 million Florida homes lose electricity

Read: Hurricane latest: Irma downgraded to Category 3 hurricane, but forecasters say it remains ‘powerful’