Checkpoints have been announced for St. Louis City, St. Louis County, and Columbia throughout the St. Patrick’s Day weekend (March 14-17).  Municipalities in St. Louis County have also announced roadblock plans for this weekend, including Clayton and Creve Coeur (hint: be careful on Olive Road in Creve Coeur between Ballas and Mason).  Drive safe out there, and remember that the luck of the Irish cannot save you if you have been drinking and you find yourself in one of these checkpoints.