Staley said the main concern is the drainage of water bodies into the county from Columbia. Flood stage is 8 feet. While River Road in Rowesville is structurally sound, water remains on the road and could create problems. We're waiting for the water table to drop enough where water gets away from the road," he said. "We're constantly monitoring the river levels," Hammond said, noting that a main concern is the drainage of water bodies into the county from Columbia.