Iowa Code § 320.1: Construction of sidewalks in certain school districts.

Where an independent or community school district has within its limits a city of one hundred twenty-five thousand population or more, and has a schoolhouse located outside the city limits of such city and outside the limits of any city, the board of supervisors of the county in which such school district is located shall upon the filing of a petition signed by the owners of at least seventy-five percent of the property which will be assessed, order the construction or reconstruction of a permanent sidewalk not less than four feet in width along the highway adjacent to the property described and leading to such schoolhouse.