Parts of the Florida Keys, the low-lying islands which bore the brunt of Hurricane Irma when the category-four storm struck on Sunday, are to re-open.
Entry is being restricted to residents and business owners as work continues to clear roads and check the state of bridges linking the islands.
Some 60% of homes in the state are still without power.
Irma, which has since rapidly weakened, is being linked to 10 deaths in the United States.
Six people died in Florida, three in Georgia and one in South Carolina.
The storm also left a trail of destruction in the Caribbean, where at least 37 people were killed.
French President Emmanuel Macron has arrived in the region and is to visit devastated French islands, while UK Foreign Secretary Boris Johnson is heading to the British Virgin Islands.
Both France and Britain have been criticised for not doing enough to help their nationals in overseas territories affected by the hurricane.
Dutch King Willem-Alexander spent Monday night on the Dutch side of St Martin, an island shared between France and the Netherlands.
"Even from the plane I saw something I have never seen before," the Dutch royal told the NOS public newscaster. "I have seen proper war as well as natural disasters before, but I've never seen anything like this".
"Everywhere you look there's devastation, you see the collapse," he added.
Florida Governor Rick Scott used the same word - "devastation" - after flying over the Keys on Monday.
"I just hope everybody survived," he said. "It's horrible what we saw. Especially for the Keys, it's going to be a long road.
"We saw a lot of boats washed ashore and we saw any, basically, any trailer park there overturned."