A drain commissioner is an elected official in county government of the U.S. state of Michigan who is responsible for planning, developing and maintaining surface water drainage systems under Public Act 40 of 1956.[1] In counties with a population under 12,000, the office of drain commissioner may be abolished with its statutory duties and responsibilities performed by the county's board of road commissioners. Unlike other county-wide officeholders, drain commissioners were created by statute and are not mandated by the Michigan Constitution. Drain commissioners are elected on the partisan ballot in presidential election years for a term of four years.