dry well construction and landscape
|garden plan plotted with stakes and twine|
|based on observations and photo documentation dry well planned and set|
|4 sequential holes dug, with pipe and fittings for overflow connecting each|
|Pipe along sidewalk drilled with holes to accept water|
|downspout disconnected from sewer and directed to dry well area|
|completed dry well area after back-filled with large gravel for drainage|
|dry well as integrated into landscape plan|
The first step to a successful dry well is observation. It is important to observe and document, preferable with a camera, the drainage pathways during heavy and sudden rainfall. You also must estimate the volume of flow and drainage rate. Think about digging a hole about as big as that puddle you saw at the high point.
Using this information you must next determine where the pathway naturally flows and where you want it to flow. Ideally this will be the same pathway, but realistically you will be making some changes. Our changes included consideration for the new patio. We did not want the rain flow to wash out the patio base and cause future problems. We not only planned the dry well to capture water from the natural pathway but we also used the soil we dug out to form a berm to assist the flow. Think about planning the dry well along the same route you saw it flow, or figuring out how to get it there.
|broken concrete from sidewalk removed and worked into design|