Sheetflow Erosion Control Erosion Control for the CESCL

September 29, 2020

Sod Berm Perimeter BMP

Photo: David Jenkins

This is not one of my projects but we have used this method on occasion. Why install silt fence when you can create a sod berm perimeter BMP?

In this case, the area is small and it is surrounded by vegetation so the risk of erosion and turbid runoff is low. In addition, the sod is full roots and seeds so it will regrow in place, providing additional erosion prevention.

September 25, 2020

Gravel Berm

Photo: David Jenkins

When we rebuilt this road, we had the contractor blade the gravel base course into a berm along the edge. This created a berm to project the bare area on the left from erosion caused by runoff from the roadway.

The gravel berm was bladed smooth just before installing a curb along the edge of the road. The bare soil was hydroseeded with bonded fiber matrix.

By using the gravel in this way, we avoided installing silt fence, preventing the soil disturbance that causes and keeping a bunch of plastic out of the landfill at the end of the project.

September 17, 2020

Compost Sock Catch Basin Berm

Photo: David Jenkins

This compost sock catch basin berm works well as it is heavy enough to stick to the asphalt. Note the tear and I would keep an eye on it during inspections.

September 15, 2020

Stockpile Cover and Berm

photo: David Jenkins

For this stockpile cover and berm application, I think the contractor could have used a few more sand bags.

September 9, 2020

Berm for Quarry Spalls

Quarry Spalls. Photo: David Jenkins

This would not have been my choice as a berm for quarry spalls; straw wattles are too light to use on asphalt and they allow water to flow under them. A compost sock, being heavy, would work better, though, they are prone to tearing. An asphalt berm might be best here.

April 28, 2020

Cool Things to do With Compost

Photo: David Jenkins

The bulk of the work will take place to the right of the silt fence. The grass will be removed and the area re-graded. The grass to the right of the construction fence will remain undisturbed. Some work will occur on the taxiway to the left of the tractor. Rather than use silt fence in this low risk area, compost berm will suffice. When done, the construction fence and stakes will be removed and re-used elsewhere and the compost will be spread out on the grass.

April 27, 2020

Cold Mix Asphalt Berm

Photo: David Jenkins

Cold mix asphalt berm works too. Used along the base of “jersey” barriers, high pH water from a concrete breaking operation is contained for later disposal off site.

April 24, 2020

Extruded Asphalt Berm

Photo: David Jenkins

Extruded asphalt berm at project entrance with center section “rolled” to allow trucks to enter and exit.

April 23, 2020

Extruded Asphalt Berm

Photo: David Jenkins

Another example of an extruded asphalt berm used to keep off site water from entering the work area.

April 22, 2020

Extruded Asphalt Berm

Photo: David Jenkins

We use extruded asphalt berms extensively to contain and direct site water to grass infield areas and to keep clean offsite water from entering the project. When the project is completed, the asphalt is removed and hauled to a batch plant for recycle.

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