Watertown, SD — May 14, 2025, One person was injured following a car accident that occurred at around 10:30 P.M. on Interstate 29.
An investigation is underway following a car accident that left one person injured during the evening hours of May 14th. According to official reports, a vehicle was traveling on Interstate 29 in the southbound lanes near mile-marker 179, when for unknown reasons the vehicle lost control and rolled multiple times before stopping.
When first responders arrived on the scene, they found that the driver had sustained serious injuries and they were transported to the hospital for treatment. At this time there has been no further information released from the accident, including the status of the driver’s injuries or what caused the accident, however this remains an ongoing investigation and more details may be released by authorities in the future.
Commentary by Attorney Michael Grossman
When a vehicle rolls multiple times on an interstate, particularly without clear evidence of another vehicle’s involvement, investigators must thoroughly examine the conditions, vehicle integrity, and driver response to understand what triggered the loss of control. The May 14th rollover crash on Interstate 29 near mile-marker 179 underscores the severity of high-speed single-vehicle incidents. To identify the cause and assess whether it could have been prevented, the investigation should focus on three key questions.
First, has the crash scene been carefully documented to determine the path of the vehicle and any contributing environmental factors? Investigators should evaluate whether road surface conditions—such as debris, uneven pavement, or wet areas—may have played a role. The trajectory of the vehicle, the number of rollovers, and its final resting position can provide insight into whether the driver swerved, overcorrected, or experienced a mechanical failure that caused the loss of stability.
Second, has the vehicle been inspected for mechanical failure or safety system performance issues? Rollover crashes can be influenced by tire blowouts, brake failures, or steering malfunctions, particularly at interstate speeds. Investigators should review the condition of the tires, suspension, and electronic stability control systems. They should also evaluate the effectiveness of occupant protection systems—such as seatbelts and airbags—which can play a critical role in mitigating injury severity during rollovers.
Third, has electronic data from the vehicle been retrieved and analyzed? Most modern vehicles are equipped with electronic control modules (ECMs) that capture important crash-related data, including speed, throttle input, braking activity, and steering input in the moments leading up to a loss of control. This data helps determine whether the driver attempted evasive maneuvers or whether the vehicle’s response contributed to the outcome. If dash cam or traffic surveillance footage is available, it may provide further visual confirmation of the circumstances surrounding the crash.
Single-vehicle rollovers on highways are complex events that require more than surface-level assumptions. These three investigative questions—focused on scene evidence, vehicle integrity, and digital data—form the foundation for a comprehensive, fact-based understanding of the crash. For the injured driver and for public safety efforts, those insights are critical to informing prevention strategies and ensuring similar outcomes can be avoided in the future.
