Latest news releases Hwy 15 reopened south of Dassel WILLMAR, Minn. – (12:45 p.m.) Hwy15 is temporarily closed two miles south of Dassel, from County Road 18 to 218th Street, due to cleanup following a crash. Traffic is being detoured locally; drivers are encouraged to take alternate routes. The road is expected to reopen within two hours. Stay informed Learn about road construction projects and studies (2022-2024) in southwest Minnesota and sign up for email updates at MnDOT’s website ###