Yesterday we had a front of heavy rain move through Charleston. These were really heavy sheets of rain. In many communities, all of that rain water would be redirected into the storm water runoff systems in a short period of time. All of that storm water treatment would have meant more expense to the taxpayers and less fresh water being absorbed where it fell. In Oak Terrace Preserve, that water is actually captured by a series of systems that helps make sure that fresh rain gets returned to the water table without a trip to the water treatment plant.

One of the mitigation methods being used in Oak Terrace Preserve is the construction of bioswales.
Bioswales are landscape elements designed to remove silt and pollution from surface runoff water. They also allow water to settle and filter into the water table over a longer period of time than would normally happen using traditional storm water runoff systems.
So here is a photo of a bioswale in action. About 24 hours after heavy rains, the water in this bioswale have lowered considerably. in another 24 hours, this water will be gone. The water doesn't hang around long enough to be a mosquito nest, but it does allow the ground to absorb the water slowly. In the coming months, these bioswales will be seeded with plants that enjoy being moist but can survive in dry conditions. The plants will fill in to be an attractive landscaping feature while the bioswale helps the environment and our tax dollars. Less storm water treatment means less expense for the taxpayers.
Labels: construction, green, Oak Terrace Preserve, sustainable