Page 1 of 1 Hollis (HB 972) Act No. 210 Designates a portion of U.S. Highway 190 in the parish of St. Tammany as "Tammany Parkway". Specifies that the section of U.S. Highway 190 in the city of Mandeville in St. Tammany Parish from the point of its intersection at La. Highway 22, traveling north until the intersection of Rogers Lane, in the city of Covington in the parish of St. Tammany to be designated as "Tammany Parkway". Directs DOTD to erect and maintain appropriate signage reflecting the interstate designation.