Crashes slow traffic on M-40 in Allegan Co.Updated: Friday, February 21 2014, 12:14 PM EST HAMILTON, Mich. (NEWSCHANNEL 3) - A section of M-40 has lanes blocked after a series of crashes Friday morning. It happened shortly after 8:00 near 140th Ave. on M-40. There is a jack-knifed semi blocking traffic, as well as several other vehicle crashes nearby. White-out conditions have been reported in the area. Expect delays if you are headed that way. Crashes slow traffic on M-40 in Allegan Co.