Law enforcement agencies in Putnam County will participate in a special enforcement effort to crackdown on impaired driving this weekend.  The statewide STOP-DWI Crackdown efforts will end on March 18th.  Putnam County Sheriff Robert Langley says St. Patrick’s Day weekend is a notoriously deadly period for impaired driving due to the number of celebrations and drivers on the road. Langley says people can help make a difference by having a Sober Plan.  Their mobile app - “Have a Plan” will help people find a safe ride home. www.stopdwi.org/mobileapp