314.25  Green space provided.
  The department shall use the property owned by it in the city of Council Bluffs which is bounded by Broadway, Seventh street, Kanesville boulevard, and Sixth street, exclusively for green space, and, if sold by the department, the department shall sell the property with the restricted covenant that the property shall be used exclusively for green space or else revert to the department.
89 Acts, ch 317, §29