2009 Michigan Laws > Chapter 254 > Act 21 of 1950 – Mackinac Bridge Authority Current as of: 2009 | Check for updates | Other versions § 254.301 Mackinac bridge authority, definitions § 254.302 Mackinac bridge authority; creation; powers; membership; compensation; expenses; oath; bond; election of chairperson; funds; quorum; personnel; executive secretary § 254.303, 254.304 Repealed. 2005, Act 332, Imd. Eff. Dec. 28, 2005