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EastCoast EastCoast administrator 20 days ago in Drainage/Erosion

There are 2 main types of solutions for drainage issues: capturing or diverting the water to appropriate locations, or waterproofing.

 

*If there is water pooling in certain areas after a heavy rainfall: There is the option of installing one of the listed drainage systems:

 

-Drain pipes: Drainage pipes are either rigid PVC or flexible pipes that are buried underground to carry excess rain water to a desired location, away from the house. The flexible drain pipes can be solid or perforated to allow the excess water to dissipate into the soil.

-French drains: A French drain is a perforated pipe that is buried underground, that is wrapped with a lightweight fabric, which allows water in but keeps the soil out. This pipe is then covered with any type of drainage stone (ranging between 1/2" to 3") to allow water to percolate through the stones, into the pipe, and then toward an exit point. Contrary to what one may think, the French Drain wasn't invented in France. It is the invention of a Concord, MA, farmer named Henry French. He hit on the idea when trying to fix swampy areas on his property.

-Catch basins: A catch basin is a type of box, made out of a durable hard plastic, that is available in various sizes (between 6" to 3') and materials that is placed in the ground near areas of standing water to help facilitate proper water drainage and avoid property damage. The top of the box features a removable grate through which excess water and debris drain into the underground box. The solid particles then settle at the bottom of the box while the water collects until it reaches the outlet trap. The outlet trap is connected to an underground piping system that exits at daylight. Once the solids accumulate and account for one-third of the basin's contents, you must remove the top grate and clean out the catch basin so it can continue to function properly.

-Swales: A swale is a low area or trench of land that can refer to a natural landscape feature or a human-created one. Swales are designed to slow and capture runoff by spreading it horizontally across the landscape, facilitating runoff infiltration into the soil. Without swales, rain water from hills or gutters could form gullies that erode the soil away. Swales catch water and direct it to where it's needed, which is in the soil. Instead of water running off or pooling above ground, swales direct it downward into an underground reservoir. As a result, swales can be turned into rain gardens with the application of native, deep rooted plants that have been placed inside and along the sides of the swale area.

-Dry well system: A dry well is large hole that is dug in the ground at a low spot on the property (typically 3-4' wide by 3-4' deep; but can be larger), that is lined with filter fabric and filled with 2-3" drainage stone, then covered with approximately 2-3" of soil and topped with grass seed or sod. The dry well allows excess water to slowly soak into the ground, dissipating the excess runoff into the groundwater. Typically, gutters or swales are connected to the dry wells to contain and dissipate the excess rain water.

-Rain garden: a rain garden is a shallow depression that is planted with deep-rooted native plants and grasses. The garden should be positioned near a runoff source like a downspout, driveway or sump pump to capture rainwater runoff and stop the water from reaching the sewer system. Rain gardens increase your contribution to preserving clean rainwater, creating habitat and preventing local flooding and water pollution.

-Permeable Pavers: Permeable pavers are used for paving vehicle and pedestrian pathways that allows for rainwater to pass through the material and percolate back into the ground. The material used for the base of permeable paving may be porous to allow for fluids to flow through it or nonporous media that are spaced so that water may flow in between the paver's joints. In addition to reducing surface runoff, permeable paving can trap suspended solids therefore filtering pollutants from storm water.

 

*If the drainage problem is more severe, like water in the basement: There is the option of a more permanent (and more expensive) solution of digging the soil away from the foundation of the home, installing a waterproof membrane to the foundation, then installing drainage pipes to exit at daylight. This means that the water will exit the pipe and spill out onto the lawn.

EastCoast EastCoast administrator 21 days ago in Drainage/Erosion

In addition to the application of other drainage solutions, like drain pipes or swales, there is the option of a more permanent (and more expensive) solution called waterproofing. this means that existing soil is dug away from the foundation of the home, installing a waterproof membrane to the foundation, then installing drainage stone and pipes to exit at daylight. This means that the water will exit the pipe and spill out onto the lawn. The waterproof membranes are adhered directly to the foundation so that the chance of water draining into the basement from outside sources is guaranteed to not happen again.

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EastCoast EastCoast administrator 21 days ago in Drainage/Erosion

If the erosion is minimal, installing drainage pipes to redirect the water should stop the soil from being carried away.

 

If the erosion is occurring on a hill, a possible solution is to install some type of ground cover (like 'Pachysandra' or 'Perriwinkle') should stop the erosion. If it is more severe, the consultant may suggest installing a retaining wall with drainage pipes installed behind it to redirect the flow of water.

EastCoast EastCoast administrator 21 days ago in Drainage/Erosion

A rain garden is a shallow depression that is planted with deep-rooted native plants and grasses. The garden should be positioned near a runoff source like a downspout, driveway or sump pump to capture rainwater runoff and stop the water from reaching the sewer system. Rain gardens increase your contribution to preserving clean rainwater, creating habitat and preventing local flooding and water pollution.

 

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EastCoast EastCoast administrator 26 days ago in Drainage/Erosion

A dry well is large hole that is dug in the ground at a low spot on the property (typically 3-4' wide by 3-4' deep; but can be larger), that is lined with filter fabric and filled with 2-3" drainage stone, then covered with approximately 2-3" of soil and topped with grass seed or sod. The dry well allows excess water to slowly soak into the ground, dissipating the excess runoff into the groundwater. Typically, gutters or swales are connected to the dry wells to contain and dissipate the excess rain water.

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