A tract 100 feet wide between each section of land owned by the state, or acquired from the state, and a tract four rods wide between all other sections in the state, is dedicated for use as public highways. The section line is the center of the dedicated right-of-way. If the highway is vacated, title to the strip inures to the owner of the tract of which it formed a part by the original survey.
AS 19.10.010