Mo. Rev. Stat. § 164.121: Purposes for which bonds may be issued in districts other than metropolitan and urban.

1. The school board of any district other than a metropolitan or urban district may borrow money and issue bonds for the payment thereof for the following purposes:

(1) Purchasing schoolhouse sites and other land for school purposes;

(2) Erecting schoolhouses or library buildings;

(3) Furnishing schoolhouses or library buildings;

(4) Building additions to or repairing old buildings;

(5) Purchasing school buses and other transportation equipment;

(6) Paying off and discharging assessments made by counties, cities, towns and villages or other political subdivisions or public corporations of the state against the district in connection with the erection, construction and maintenance of sewers and sewer systems, sidewalks, guttering, curbing and paving of streets and alleys adjoining and abutting real estate of the district if the general funds of the district are insufficient in the judgment of the board to pay and discharge the assessment.

2. The question of any loan under this section shall be decided at an election.