Evaluating Drainage

Slope - Evaluating Drainage

With your slope measurements in hand, look over your property to see how it channels water. The drainageways should have no obstructions or low spots that collect water. Also note areas where water doesn't drain well. They may indicate heavy, poorly drained soil or hardpan. If you plan to garden in these areas, you'll need professional advice about improving the drainage.
To keep your house from flooding, you should make sure the soil around it slopes away in all directions, at a minimum of ╝ inch per foot for at least 6 feet out from the foundation. Downspouts should also drain away from your house. If you suspect a problem, hire a landscape architect or soils engineer to evaluate before you landscape.