It ran for two blocks along Oak Street providing a short connection between Minnesota State Highway 371 (now Highway 371 - Business) and Minnesota State Highway 18.

It existed until after the completion of the Highway 371 Brainerd bypass in 2000, when it was turned back, along with portions of Highways 18 and 25, to local jurisdiction in order to compensate for the additional mileage of state highway resulting from the new bypass.

Before the turnback of state highways resulting from the opening of the Brainerd bypass, Highway 18 ran west of its current terminus at Highway 25 along Oak Street to 8th Street.

It then turned north and ran along 8th Street for just under a half mile to its former terminus at Highway 210.

The entire route is in Brainerd, Crow Wing County.