The Minnesota Department of Transportation (MnDOT) is planning a larger-scale improvement project along Highway 13 north of Waterville and Montgomery in 2029. The project includes a 3- to 4-inch pavement reclamation, plus culvert repair and water drainage pipework along the highway between the two cities. It is currently estimated to cost about $15 million, said Forrest Hasty, MnDOT’s District 7 assistant engineer for highway delivery projects.