Sheetflow Erosion and Sediment Control

June 16, 2020

BMP Graveyard-Straw Wattle

Photo: David Jenkins

Ten year old straw wattle. Straw is long gone, plastic mesh just as strong as ever.

June 9, 2020

Old Straw Wattle

photo: David Jenkins

I don’t know how old this straw wattle is but old enough to grow moss. The straw is well degraded but the plastic mesh is still too strong to pull apart.

March 31, 2020

Straw Wattle on Slope Stops Rills

March 23, 2020

Old Silt Fence

22 year-old silt fence. Photo: David Jenkins

This silt fence was installed when a storage facility was constructed behind my house. My kids were preschoolers; now they are college age. Why was this installed since everything is level? Why was it never removed? Was this the right choice for a perimeter control BMP? Silt fence is the “go-to” perimeter control. Should it be? There are so many options available other than silt fence: Forest duff and vegetation berm, burlap silt fence with wooden stakes, compost berm, straw wattles, all of which could be left in place to biodegrade after the project is completed.

January 10, 2020

Plastic Netting

I saw this today while looking at site we will be working on this summer. The straw wattle was left over from a previous project, completed almost six years ago. The straw filler is almost completely degraded. The netting is partially degraded, but in places is too strong to tear apart with my fingers. We need more 100% biodegradable best management practices and less plastic netting.

Six year old straw wattle. Photo: David Jenkins
Close up of plastic netting. Photo: David Jenkins

December 17, 2019

Straw Wattles Reduce Erosion on Slopes One Year Later

February 23, 2019

More Clean Water Diversion Best Management Practices

This shows several simple water diversion berms in action during a heavy rain. While the construction project is complete and the grass has grown, you can see how they prevented erosion during the project when bare dirt was exposed to rain.

February 15, 2018

Straw Wattles Reduce Erosion on Slopes

As water runs down a slope, it starts as sheetflow. If left unchecked, the water picks up velocity and erodes, forming small channels called rills. If the rills are left unchecked and the water flow continues to increase in velocity as it runs down the slope, it begins to form gullies. At this point, significant erosion is occurring. Straw wattles placed on a slope, on contours and at regular intervals, will intercept flowing water, reducing its velocity and reducing erosion. Straw Wattle Installation Drawing

January 20, 2018

Straw Wattles on Slope in Rain

Here is another example of the benefits of using straw wattles on a slope. For another example, go to last week’s post.

November 24, 2014

Inspecting Straw Wattle on Contour

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