Sheetflow

April 26, 2011

Straw Wattle Instead of Silt Fence

Filed under: Video — Sheetflow @ 7:00 am

On some small projects, with low risk for erosion of sediment into a creek or other Waters of the United States, silt fence is overkill and will just end up in the landfill when the project is done.

April 20, 2011

Straw Wattles on Slope in Rain

Filed under: Video — Sheetflow @ 7:00 am

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

April 15, 2011

Straw Wattles Reduce Erosion on Slopes

Filed under: Video — Sheetflow @ 7:04 am

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

April 10, 2011

Extruded Asphalt Curbing as a Best Management Practice (BMP)

Filed under: Photo — Sheetflow @ 7:00 am

Here is an an example of extruded asphalt curbing being used as a barrier to keep storm water out of the construction area, on the left, and keep site water from flowing outside the project, to the right. In this case, the non-project water is dirtier because the paving is broken up and equipment is driving through muddy areas. The object of the construction project is to grind existing, poor, asphalt, rebuild the base using the ground asphalt, then lay new asphalt over the top. This is being done in phases to keep from opening up too much area as this work is being done in winter.

Click on the image for larger size.

April 5, 2011

Guide to Handling Fugitive Dust from Construction Projects

Filed under: PDF — Sheetflow @ 7:00 am

Download: Guide to Handling Fugitive Dust from Construction Projects.PDF

The classic brochure developed in 1997 by the Associated General Contractors (AGC) of Washington Education Foundation and the Fugitive Dust Task Force, Seattle, Washington. Updated and edited for the Internet by: www.sheetflow.com, February 2009.

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