State Highway 25 serves as a north–south route in central Minnesota between Belle Plaine, Norwood Young America, Watertown, Buffalo, Monticello, Big Lake, Becker, Foley, and Brainerd.
The route travels east–west between Belle Plaine and Green Isle for 15 miles.
State Highway 25 was authorized November 2, 1920 from Belle Plaine to Big Lake.[1]
The roadway was fully graveled by 1928.[3] It was paved in stages from north to south throughout the 1930s: from Big Lake to Buffalo in 1931,[4] Buffalo to Montrose in 1932,[5] Montrose to Watertown in 1933,[6][7] and Watertown to Norwood in 1934.[7][8]
Paving was completed in Belle Plaine in 1937,[9] and the remaining gravel section through Sibley County was paved in 1950.[10]
When the four-lane bypass of U.S. 169 around Belle Plaine was built in 1955, Highway 25 was extended east along 169's former alignment to intersect the new highway.[9]
In 1961, Highway 25 was extended north along what had previously been State Highway 218 from Becker to Merrifield. This highway was already paved in its entirety.[11][12]
^ abMinnesota State Legislature (2010). "§ 161.114, Constitutional Trunk Highways". Minnesota Statutes. Minnesota Office of the Revisor of Statutes. Retrieved October 12, 2010.
^1961 Official Road Map, Minnesota (Map). Cartography by The H.M. Gousha Co. Minnesota Department of Highways. 1961. § H-11 through H-14. Retrieved January 26, 2019.