The death toll from Hurricane Irma has climbed to 22 in the United States following its path of destruction across the Caribbean and through the Southeast U.S. over the weekend, while power has now been restored to over 2 million customers in Florida.

And Monroe County announced Tuesday night that all 42 bridges in the county were inspected and "deemed safe for vehicles."

By late Tuesday, Florida Power & Light Co. had restored power to 2.3 million customers, which was 40 percent of those affected across the state; about 4.4 million customers in Florida are still without power as of Tuesday afternoon. The company said its customers on the state's east coast should expect most power to be restored by about Sept. 17, while customers on the state's west coast should expect most power to be restored by Sept. 22.

PHOTO: Members of the Pinto family gather on the ground floor of a hotel in Fort Myers, Fla., Sept. 10, 2017. (Timothy Fadek / Redux for ABC News) More

After days of destruction, Irma -- the first Category 4 landfall in Florida since 2004 -- has dissipated. Now, evacuated Floridians are sitting in bumper-to-bumper traffic to head home and face monumental cleanups throughout the state.

President Donald Trump announced Tuesday afternoon that he is set to travel to Florida on Thursday.

PHOTO: SJCFR Urban Search and Rescue teams are finding numerous homes throughout the county that have been damaged by high winds, fallen trees and flood waters. (St. Johns County Fire Rescue/Facebook) More

PHOTO: A car sits abandoned in storm surge waters along North Fort Lauderdale Beach Boulevard as Hurricane Irma hits the southern part of the state Sept. 10, 2017 in Fort Lauderdale, Fla. (Chip Somodevilla/Getty Images) More

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Upper Keys and Miami Beach residents permitted to return home

The Florida Keys had been cut off from the mainland for days after Irma made landfall on the low-lying islands Sunday morning as a Category 4 hurricane, bringing 130 mph winds and a storm surge of 10 feet.

PHOTO: The aftermath of Hurricane Irma is seen in Florida Keys, Fla, Sept. 11, 2017. (Matt McClain/EPA) More

Florida Gov. Rick Scott said the storm left "devastation" on the Keys, which were under mandatory evacuation orders during Irma. At least one person died in the Keys.

This morning, officials opened entry into the Upper Keys for residents in Key Largo, Tavernier and Islamorada, up to mile marker 73, allowing residents to return home and see the damage for themselves.

Dozens of eager Keys residents parked their cars along U.S. 1 Monday, staying there through the night to make sure they could get onto the Keys when access was granted, ABC Miami affiliate WPLG-TV reported.

But water, power, sewer, medical services and cell service are still limited, Monroe County officials said today. In the meantime, shelters and distribution centers for food and water are being opened.

Florida's Department of Transportation is also today working to repair two 300-foot stretches of road on the Keys that was washed out.

While the Keys were under mandatory evacuation orders as Irma neared, not everyone left. Florida Director of Emergency Management Bryan Koon estimates that about 10,000 people remained in the Keys during the storm, according to the Miami Herald.

County officials are working to restore services and make the county safe for residents in the Middle and Lower Keys to return, they said today, adding that this will take time.

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