On June 22, 2024, South Dakota experienced heavy rainfall and flooding that led to several emergency declarations and travel advisories. Governor Kristi Noem signed an Executive Order declaring an emergency for the recent storms and associated flooding in the state (Keloland). The SD Department of Transportation issued a no travel advisory for all state highway sections in southeast South Dakota that are experiencing flooding (Keloland). I-29 was fully reopened, but people were urged not to drive in Lincoln County due to ongoing calls and rescues. The City of Sioux Falls also prepared for floods and flash floods, with minor amounts of untreated wastewater being discharged into the Big Sioux River (City of SiouxFalls).
Governor Noem issued a no boating declaration on several lakes due to the flooding risk. She stated that even though the rain was slowing down, the worst of the flooding along rivers would be on Monday and Tuesday (Keloland). The Lincoln County Sheriff's Office urged people not to drive in this county due to ongoing calls and rescues. Deputies, Conservation Officers, and local Fire Departments were all busy with calls and rescues. Most of the state and local roads were impassable due to standing or flowing water across the roadways (Keloland).
The City of Sioux Falls activated its Emergency Operations Center (EOC) in response to flash flooding, as heavy rainfall and rapid snowmelt can cause widespread flooding. The National Weather Service issued a Flash Flood Warning for the area until 9:15 AM CDT on June 21, 2024. Minor amounts of untreated wastewater began being discharged into the Big Sioux River due to the wastewater system running over capacity (City of SiouxFalls).
The City recommended residents conserve water use and keep a safe distance from rushing water. They also advised following posted safety signage and using common sense when observing flood waters. Road closures were in place, with a map available on the 511 Updates website and map (City of SiouxFalls).
It's important to stay safe during the flood response and clean-up process. Conserve water by limiting showers, doing laundry, or using dishwashers. Do not walk, swim or drive through flood waters. Keep a safe distance from rushing water and follow posted safety signage. Do not drain sump pumps into floor drains as they can introduce health and safety risks into your home (City of SiouxFalls).
For more information on staying safe during floods, visit ready.gov.
