Zone No. 5-         Beginning at the Victoria-Jackson County line on U.S. Highway 59, thence south along the Victoria-Jackson County line to Farm Road 616, thence west along Farm Road 616 to U.S. Highway 87 at Placedo, Texas, thence northwest along U.S. Highway 87 to the junction of U.S. Highway 87 and U.S. Highway 59 in Victoria, Texas, thence east along U.S. Highway 59 to the point of beginning.