ASHLAND, Wis. — Widespread flooding in the Upper Midwest was blamed for at least one death in Wisconsin, while officials in northern Michigan were assessing damage from flash-flooding that washed out roads, damaged businesses and caused dozens of sinkholes.

The body of a 75-year-old man was recovered about 60 feet (18 meters) from his pickup truck in a ditch along a flooded road Sunday in White River, the Ashland County Sheriff’s Office said Monday. Sheriff’s officials said the investigation was ongoing but that the death was flood related.

Heavy rains flooded roads in northern areas of all three states, causing some sections to collapse and trapping vehicles. In parts of Michigan’s Upper Peninsula, where up to 7 inches (18 centimeters) of rain was reported, water washed up large chunks of concrete and asphalt, littering roads with debris and making them impassible.

“The majority of us can’t even get home. Roads are collapsed. Bridges are collapsed. Roads are covered in water. Whatever roads aren’t collapsed it depends on how heavy of a vehicle you drive whether or not you are able to drive on those roads,” Tom Cowell, who lives in Chassell, a community on a peninsula in Lake Superior, told local television station WLUC.

“This is a pretty wild experience that we are having here,” he said.

In nearby Houghton, a swollen creek washed away much of a parking lot and a Taco Bell sign. The land up to the restaurant’s building caved into an adjacent ravine. Water rushed down a hilly street through businesses, including a comic book store and sporting goods shop where employees were trying to salvage goods.

Some residents used boats to get around, though the U.S. Coast Guard warned people to stay out of recreational waterways because of the amount of storm debris. The agency also warned that the water is still very cold and could be deadly.

Michigan Tech University and Finlandia University remain closed Monday because of the flooding and road conditions.

Flash flooding over the weekend also caused extensive damage to roads and highways in Wisconsin and Minnesota, including U.S. Highway 2, a major thoroughfare across northwestern Wisconsin. Summer-school classes were cancelled in the Superior School District because of flooding and damaged roads, according to the district.

As much as 10 inches of rain fell Saturday and Sunday in parts of eastern Minnesota, pushing the Nemadji River out of its banks, while 15 inches of rain fell in Drummond, Wisconsin, southeast of the Iron River, according to the National Weather Service.

The weather service on Monday extended a weekend flood warning through Thursday for northwestern Wisconsin and neighboring areas in Minnesota.