Emergency responders from the city of Rosemount shut down a section of U.S. 52 in both directions on Wednesday afternoon and evacuated two families from their homes after discovering a leaking propane pipeline owned by Flint Hills Resources and its Pine Bend Refinery. Around 2:40 p.m., emergency cre ws were called to the 15100 block of U.S. 52 after reports of a possible brushfire. Rather than a fire, they discovered a substance leak and established a safety perimeter around it, shutting down highway traffic in both directions between Dakota County Roads 46 and 42. Rosemount Police and Fire Departments, in coordination with the Dakota Special Operations Team and the Minnesota Department of Public Safety Office of Pipeline Safety, identified the source of the leak as a propane pipeline owned by Flint Hills Resources, according to a written statement from the city. On Wednesday evening, the state Office of Pipeline Safety determined the leak had been contained. Dakota County authorities deployed a tethered drone and an air monitoring system to keep further tabs on the situation. Flints Hills Resources is assisting with the temporary relocation of two families while cleanup efforts are underway. The refinery owner is working to discharge the remaining propane from the leaking line. Rosemount Fire and Police Departments continue to monitor the area, and U.S. 52 traffic will reopen when the state makes a final determination. Related Articles Local News | Lions Clubs plan Community Day of Service Local News | Rosemount High School, Dakota County musicians to host free concert Local News | State Class AA girls hockey: Rosemount 3, Centennial/Spring Lake Park 2 Local News | East Metro Girls Hockey Player of the Year: Rosemount’s Sophie Stramel Local News | Facebook parent company Meta picks up more Rosemount land for $70M ...read more read less