Gov. Kristi Noem formally requested Friday a major disaster declaration from the Biden administration for 25 counties due to the severe flooding that occurred in eastern South Dakota between June 16 and July 8.

Noem signed an executive order declaring a disaster exists in the following South Dakota counties: Aurora, Bennett, Bon Homme, Brule, Buffalo, Charles Mix, Clay, Davison, Douglas, Gregory, Hand, Hanson, Hutchinson, Jackson, Lake, Lincoln, McCook, Miner, Minnehaha, Moody, Sanborn, Tripp, Turner, Union, and Yankton.

According to the National Weather Service, the rain event that created this flooding was a 1,000-year event.

“Today, we are submitting our request for a presidential disaster declaration to address the damage from a historic 1,000-year flood that impacted South Dakota,” Noem wrote in a Friday press release. “We have been working with families, local governments and officials, and FEMA for weeks to assess the damage. I am so proud of what South Dakotans have been able to do to start piecing our communities back together.”

A presidential disaster declaration provides a wide range of federal assistance programs for individuals and public infrastructure, including funds for both emergency and permanent work.

The recent flooding inundated communities and damaged infrastructure across eastern South Dakota. The McCook Lake community in North Sioux City was hit by floodwaters diverted from the Big Sioux River on July 23, destroying about 30 homes and eroding roads.

A BNSF railroad bridge used to transport goods over the South Dakota-Iowa border in North Sioux City also collapsed July 23 due to the flooding.

Some parts of Canton also received more than a foot of rain between June 20 and June 22, almost exactly a decade after the 2014 flood that struck the area.

One person died as a result of the flooding. The state Department of Public Safety confirmed the death involved 87-year-old Merlyn Rennich, of Harrisburg, who crashed a UTV on a closed road near Lake Alvin, 5 miles east of Harrisburg. The road was damaged by the floodwaters, and the man died after reversing into the road’s washed-out shoulder while attempting to turn around.

More: DPS confirms fatal crash near Lake Alvin was flood-related

The release from Noem’s Office states that teams from the Office of Emergency Management and the Federal Emergency Management Agency have been on the ground conducting thorough damage assessments across the impacted areas, working closely to assess the extent of the damage and coordinate the necessary response efforts.

“This thorough damage assessment was normal protocol for a presidential disaster declaration, and it’s an important part of the process to make sure all eligible counties and citizens are included,” said Kristi Turman, Director of the Division of Emergency Services at the South Dakota Department of Public Safety.

At least 11 river gauges hit new preliminary record-high levels, according to the Governor’s Office. The Big Sioux River at Sioux City crested nearly eight feet higher than previous records. New record crests were set at the following locations:

• Big Sioux River at Canton, Hawarden, Akron, Richland, Jefferson, and Sioux City;
• Vermillion River at Davis, Wakonda, and Vermillion;
• West Fork Vermillion River at Parker; and
• Turkey Ridge Creek at Centerville.