Sheet Flow Construction Erosion Control

November 23, 2020

Erosion Controls in Olympic National Park

Video: David Jenkins-Sheetflow Erosion Contr

Recently, I stopped to check out erosion controls on the way to the Staircase in Olympic National Park.

November 16, 2020

A Final Inspection

I am conducting a final inspection of erosion controls at a former staging area. Some of the best management practices shown are: silt fence, straw wattles, and hydroseed.

Video: David Jenkins-Sheetflow Erosion Control

October 21, 2020

Perimeter Controls Presentation

I am giving a presentation on Perimeter Controls: Non-standard Practices for Managing Water and Sediment today at noon. Go to Erosion and Sediment Control Association- British Columbia for information and to sign up. It’s only 10 bucks.

Description-Silt fence is not the only perimeter control BMP option. It is not the best option in many situations. In this presentation, I will discuss when silt fence makes sense, when it doesn’t, what other options are available.

August 24, 2020

Construction Access with Steel Plates

We built a construction access with steel plates across this stormwater swale. Then we laid compost socks and straw wattles along side of the eco blocks placed along the edges.

The adjacent parking lot drains into the swale and must be protected from dirty construction stormwater discharges.

July 27, 2020

BMP Graveyard-Straw Wattle

Photo: David Jenkins

Another ten year old straw wattle and the plastic is partly degraded but mostly too strong to pull apart.

July 10, 2020

BMP Graveyard-Straw Wattle

Photo: David Jenkins

This used to be a straw wattle 10 years ago. Now it is just plastic mesh BMP graveyard.

June 16, 2020

BMP Graveyard-Straw Wattle

Photo: David Jenkins

Here is another BMP graveyard. Ten year old straw wattle. The straw is long gone but the plastic mesh just as strong as ever.

June 9, 2020

Old Excelsior Wattle

photo: David Jenkins

I don’t know how old this excelsior 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

Video: David Jenkins

This straw wattle on a slope stops rills before they can completely form.

March 23, 2020

Old Silt Fence

22 year-old silt fence. Photo: David Jenkins

This 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: 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.

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