(a) The municipality in which a municipal levee or flood control district is located may enter into contracts with, and give assurances to, the federal government, or any of its agencies, that the municipality, on completion of the project, will operate and maintain it.
(b) The municipality may, from its own funds, assist the district and it may also donate to the district, by proper conveyance, any land belonging to the municipality reasonably necessary or desirable for the construction, maintenance, and operation of the project.