MANKATO-September 11, 2012-(KMKO)-Expect significant delays on Highway 14 east of Mankato tonight and tomorrow night as interchange construction for the new Blue Earth County Road 12 goes forward. Bridge beams will be set into place between 8:00 pm and 5:00 am. Traffic will be delayed around 15 minutes both days. Westbound Highway 14 traffic will be impacted tonight and the eastbound traffic will be delayed tomorrow night. You can use Blue Earth County Road 17 (old Highway 14) as an alternate route.