Michigan StatutesAct 295 of 1937 - MECHANICALLY OPERATED BARRICADING DEVICES (247.311 - 247.314)Section 247.311 - Highways; definition.Section 247.312 - Automatic or mechanically operated barricading devices.Section 247.313 - Barricading devices on highway; automatic; warning signs, size, wording, distance.Section 247.314 - Barricading devices; expense.