Welcome to Prorail 2027 Welcome to Prorail, the model railroad invitational operating weekend in for layout hosts to be held in Omaha, Nebraska. Our 2027 weekend is scheduled for Thursday, April 22nd through Saturday, April 24th. With 14 layouts planning to operate, this promises to be a fun weekend for all of our out-of-town guests. We look forward to seeing you here in Omaha in 2027.