In Cleveland, Tennessee, an expensive drainage ditch and retention pond project that was built during a drought is now suffering erosion strong erosion in non-drought conditions. An unknown water source is entering the pond and turning it into a constant stream. Officials are now debating whether riprap could be used in the ditches. If the Tennessee Department of Environmental Conservation does not approve the plan, a geosynthetic liner will most likely be needed in the pond to sustain the flow rate.