Multiple crashes close M-40 in Allegan Co.Updated: Monday, February 11 2013, 02:27 PM EST ALLEGAN COUNTY, Mich. (NEWSCHANNEL 3) – Police in Allegan County shut down a portion of M-40 after multiple accidents Monday morning. The highway was closed between 48th St. and 140th St. It has since re-opened. There is no word yet on injuries. Multiple crashes close M-40 in Allegan Co.