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Erosion Control

~Case Study~

Hunters Green Cluster

“The combination of Rocks, Plants, and Design turned an eyesore into an attractive area!”

 20june09 002Problem  Betsy Hill, Hunters Green Cluster board member, spearheaded the initial project,”…we were looking to do an erosion project behind [the community].  It’s a shady area with no topsoil left, with trees that could definitely use trimming service, exposed roots, utilities; it’s complicated and the planting would be a big part of making the long term erosion control work.”  Hunters Green Cluster’s rear common area suffered from erosion causing back yard properties to flood, walkways constantly washing out and existing culverts unable to function effectively due to the collection of silt and runoff debris.  The cause is common;  overgrown tree canopy, either by neglect or a desire to keep shaded areas, and that’s why they need to maintain the trees in good condition, and the use of tree trimmers near me is a great option for this purpose.  Without proper canopy pruning, there is an eventual loss of turf area and exposed top soil erodes and causes various erosion problems, such as flooding.

HG Lower Swale BeforeProposal  Account Manager, Terry Turner, provided a thorough assessment of the areas affected by the erosion and found many areas of concern.  He proposed a drainage swale design utilizing River Jack stone for the swale, replace and repair existing clean-outs and create a river jack stone buffer around the existing drainage culverts.  The proposal included the necessary turf renovation and ground cover installation. The proposal was then given to the Reston Association for review.20june09 014

HG Swale After 1Solution Create drainage swales throughout rear common area. Reparations of the existing drainage culverts and clean-outs, turf restoration where turf grass is feasible, and the establishment of ground cover beds under the existing shade trees would be essential to eradicate these erosion issues.  The design included the use of woodchips and perennial ground cover to be installed as a landscape buffer to further protect the topsoil from washing into the new drainage swale.

HG Swale AfterAccolades  “The board at Hunters Green Cluster hired your company to correct an erosion problem behind my home. The landscaping crew finished the project last week and I am writing to tell you how pleased I am with the results. The combination of Rocks, Plants, and design turned an eyesore into an attractive area.” resident, Virginia Banks.  Board member, Betsy Hill, expressed her comments about the drainage swales, “Terry, this project is great!!!!”   “The work is exemplary …. the swale is beautiful…amazing!!!!”, stated long-time supporter and board member, Katherine Hunter.

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DRAINAGE & SOIL EROSION Q&A’s

WHAT IS SOIL EROSION?
Soil erosion occurs when soil particles are carried off by water or wind. In addition to the soil, runoff can wash fertilizer and other pollutants along with it. According to topsoil in puyallup most phosphates and pesticides entering Virginia’s waters are attached to these soil particles. Nitrogen and phosphorus from fertilizers carried by runoff have been associated with many environmental problems. Streams, ponds, rivers, and the Chesapeake Bay suffer from algae growth, depletion of the water’s oxygen supply, and suffocation of aquatic organisms. Soil erosion begins with the depletion of the uppermost layer of soil: dust. And to prevent this, Dust control in Australia has almost become a mandate, in a bid to both stop erosion and keep the atmosphere clean, and the use of other home services like a mice and rodent exterminator could also help keeping your home clean and pest free.

WHAT ARE THE SIGNS OF SOIL EROSION?
Everyone recognizes a gully as evidence of soil erosion. Muddy water in your gutter or driveway also indicates that erosion has been occurring. It may only be visible for a time following a rain, but the damage will continue unless something is done, we recommend yo to visit Prime website if you are looking for a reliable roofing company that gives you a free estimate so we may get your project started immediately.

The following are other indications of erosion.

  • Bare spots on your lawn or property
  • Exposed tree roots
  • Small rills or gullies on slopes
  • Soil splashes on your windows and outside walls
  • Sediment that collects in low areas or on pavement. If you wish to keep the pavement in good condition.

DRAINAGE, WHY DOES DRAINAGE MATTER?
Water always takes the easiest path. Because of this, it is important to understand how and what drainage is in order to find an alternative path for the water on your land.

DRAINAGE ON YOUR PROPERTY HAS A GREATER AFFECT
What drains from your property will affect much more than your land alone. Runoff from your yard is the water that runs across your yard and all the material the water picks up and carries with it. Pollutants in water are frequently referred to as point and nonpoint source pollution. Point source pollutants come from an identified point such as an outfall pipe at an industrial operation. Nonpoint source pollutants come from many sources such as pet waste, leaking or improperly disposed auto fluids, car wash detergent or startchoosing the best soap, or fertilizers from your lawn. Pollutants are carried down into the groundwater table with percolating water draining through soil and disposed. Pollutants are also washed into lakes and streams via surface runoff. Storm drains, along streets and in backyards, lead to local streams. Home lawns and landscapes contribute to pollution when improper water management and chemical application allow fertilizer or pesticide-laden runoff to drain into our water supplies. In some areas, soils are very slow-draining and are referred to as having a high groundwater table. Groundwater tables tend to be at their highest in February and March in Virginia as a result of snowmelt and rains. Reliable

WHAT ARE SOME CLUES AND CORRECTIVE MEASURES?

  • Wet Lawns: To help prevent surface water from standing in your property, don’t create or maintain a perfectly flat space. Maintain a slight slope that drains toward a swale, rain garden or storm sewer inlet. Even very well-drained soils may become saturated in a Virginia summer thunderstorm, so try to maintain a slope of 5 percent away from the house and 2 percent everywhere else
  • Standing water: If your yard, or some portion of it, remains wet and soggy for extended periods (two or three days following a rain), the natural drainage ways may be blocked or have settled and do not have enough grade to drain. Soggy ground and wet lawns are often the result of trapped surface water with no place to go. Most yards are originally graded so that water flows from the front to the street and from the back to a swale, ditch, or storm sewer. The existing grade of your land may have changed with an added patio, walk, or mounded planting beds (ask your deck contractors for more details), or trees may have grown significantly and their roots raised the ground surface.
  • Bare Spots: Excess water is the most frequent cause of bare spots and erosion. If the excess water is moving across your property, it will need to be redirected to a more appropriate area. The redirected water can be diverted to an appropriately planted grassy area, or a drainage swale, (A drainage swale is a shaped and sloped depression in the soil surface used to convey water run-off to a desired location). Regrading may be necessary to the surrounding ground to encourage the water to move where you want it to go.

THINGS TO CONSIDER…

1. Where is the water coming from? Standing rain water? Or is the water flowing onto the property from elsewhere?
2. Where should the water go? Water always flows downhill. Is something preventing the water from draining away? Is a storm drain clogged with debris? Is a drainage ditch overgrown with weeds or full of mulch? Is some man-made barrier blocking the waters natural path?
3. How much water to be handled? Is a wide drainage channel needed or will a shallow channel suffice?
4. How steep is the slope? A gentle slope will have a slow current, while a steep slope will need breaks to slow the water and prevent erosion.

HOW CAN YOU STOP SOIL FROM ERODING?
To solve the erosion problem, you must identify the cause and then correct it with an alternative site design solution using BMPs (best management practices), we recommend to use topsoil to correct any damage left behind the restoration process. BMPs involve measures which accomplish two basic objectives:

  • Reduce the amount of impervious surface area, thereby reducing runoff and
  • Utilize the landscape to naturally filter and infiltrate runoff before it leaves the development site.

Recommended Site Design Alternatives…

  • Natural Drainage Swales: A drainage swale is a shaped and sloped depression in the soil surface used to convey water run-off to a desired location. A drainage swale is designed with a lining of vegetation, riprap, asphalt, concrete, or other material and is used to intercept and divert flow to a suitable outlet. It is constructed by excavating a channel and applying the appropriate stabilization. They can be used to convey runoff from the bottom or top of slope. For swales draining a disturbed area, the outlet can be to a sediment trapping device prior to its release.
  • Mulch: Mulching is a temporary erosion control practice in which materials such as grass, hay wood chips, wood fibers, straw, or gravel are placed on exposed or recently planted soil surfaces
  • Natural Landscaping: Natural landscaping approaches utilize native plants as an alternative to conventional turf grass. The principal advantage of preserving natural vegetations and utilizing natural landscape designs is the protections of desirable trees, vines, bushes, and grasses from damage caused by erosion. Vegetation provides erosion control, storm water detention, biofiltration, and aesthetic values.
  • Permeable Pavers: Permeable pavers are an environmentally friendly alternative to regular interlocking pavers. They allow for water to filter through the surface where it stays in a gravel basin while it slowly filters into the soil. By absorbing runoff, permeable surfaces help to prevent erosion and drainage issues.
  • Riprap: Riprap is a permanent, erosion-resistant layer made of stones. It is intended to protect soil from erosion in areas of concentrated runoff.

Additional Links & Resources

https://www.epa.gov/nps/education/runoff.html 

https://www.epa.gov/nps/facts/point7.htm

https://https://www.fairfaxcounty.gov/nvswcd/youyourland/soil.htm

https://https://www.ctic.purdue.edu/KYW/Brochures/GroundSurface.html

https://https://strawberrycreek.berkeley.edu/pdfs/Start@Source/sats5drainagesystems.pdf

https://https://www.usarak.army.mil/Conservation/ITAM/ITAM_BMPs.pdf


Raul:

This will be our first year with you all during leaf pick-up. Eric talked about your innovative strategies, but I have not seen them in action. (Though your  efficient mowing and herbicide techniques likely mean that this effort will be just as efficient!)

Call or e-mail with any reminders or suggestions. The community looks good – we have had a number of residents and visitors tell us that – and that is in large part due to the efforts of Blade Runners.

Michael Ellwood

Tallwoods HOA

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Erosion Control

~Case Study~

Bentana Park

“Many thanks to Blade Runners for beautifying our community!”

Problem  “Turf , drainage and erosion problems have been areas of contention for 10 years at Bentana Park.  Many different solutions had been tried and proved unsuccessful”  stated Property Manager, Diana Fritz.  “When I requested a bid from Blade Runners last year to replace ‘XYZ’ contractor, I knew that I was getting a company that would stand behind their work and would give us the best service available.  I have worked with Terry Turner, Blade Runners Branch Manager, on several other communities and he has always been exceptional to work with.  He has given me wonderful service at other properties and I knew he would do the same at Bentana Park.”

Bentana Before Park

Proposal  Terry Turner provided a thorough assessment of the areas of erosion and found many homes were affected and there was flooding involved.  This was of major concern.  He proposed a drainage swale consisting of River Jack stone, replacing and repairing clean-outs and installing a river jack buffer around the existing drainage culverts.  Woodchips and perennial ground cover will be installed with the help of Legion Landscaping services as a landscape buffer to further protect the topsoil from washing into the drainage swale. The proposal was then given to the Reston Association for review.  According to Diana Fritz, Property Manager, “Another contractor also installed drain swales that were extremely costly, but unfortunately, Reston Association came back and told them they were not to code and needed to be ripped out.  When Reston Association finally approved Blade Runners approach and the work was complete everyone, including Reston Association was delighted with the final product.”

                                                                                                                                                                                                                                               

Solution  Creat Dry River Swale through rear common area.  A Dry Swale serves as a permanent, erosion-resistant layer, made of stones.  It is intended to protect soil from erosion in areas of concentrated runoff.  Groundcover beds to be established around and under existing shade trees.  Wood chips and ground cover perennials installed as a landscape buffer. Ground cover vegetation provides   erosion control, storm water detention, biofiltration, and aesthetic values.

Solutions 1

 Accolades  Longtime resident and board member, Kathy Ray , “I have lived in Bentana Park for 20+ years and during this time, there has been numerous attempts to handle the erosion issues behind some of the units with our community.  Within the first few months of working with Blade Runners, these areas were turned into livable, beautiful areas.  Blade Runners provided the expertise to design and a dedicated team to perform quality workmanship.  They have proven to be dependable, dedicated and provided excellent customer service.  Not only has the erosion issues been controlled, it has given the homeowners a place to finally be able to sit and enjoy the scenery.  Many thanks to Blade Runners for beautifying our community!”

The Galvin Tree Cutting for Bronx tree removal services is one of the most trusted company when it comes to tree removal. Along with removing the trees they also ensure to provide their customers a clear land so that their clients do not have to deal with any form of derbies later.

Solutions 4

Solutions 3

 

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