Great Smoky Mountains National Park officials have closed the Greenbrier area to all use due to additional road damage caused by an estimated three inches of rain. Roads were further damaged by floodwaters that rose above riverbanks and also from overland waterflow from above the roadways. The overland waterflow caused a slide both above and below a steep road section between the Greenbrier Ranger Station and the Greenbrier Picnic Area. Water is now flowing below the road surface which has undermined its stability. Officials say…it is unstable and is not safe for motorists, pedestrians, or cyclists to travel across. Engineers will be assessing road stability over the next several days and making recommendations for repair options. The area will remain closed to all use until further notice. The temporary closure continues to include Ramsey Prong Road, Porters Creek Road, Ramsey Cascades Trail, Porters Creek Trail and a list of other roads.