Which of the following is a sediment control BMP example?

Which of the following is a sediment control BMP example?

• A. Rock check structure / riprap
• B. Filter bags
• C. Straw bale barriers
• D. Inlet barriers

Answer: (C)

Controlling sediment starts with intercepting runoff at the source so sediment settles out before leaving the site. Straw bale barriers fit this purpose as a temporary perimeter sediment control measure. Placed across drainage paths or along the downhill edge of disturbed areas, they slow the flow, trap sediment as it flows through, and give it a chance to settle out before the water can reach storm drains or waterways. They’re simple to install, inexpensive, and easy to remove or replace as site conditions change, which is why they’re frequently cited as a clear example of a sediment control BMP. Rock check structures or riprap are mainly about dissipating energy and protecting channels from erosion, not primarily about trapping sediment at the site boundary. Inlet barriers and filter bags are also sediment-control tools, but straw bale barriers are the classic, straightforward example used to illustrate a temporary perimeter sediment control BMP on construction sites.

Controlling sediment starts with intercepting runoff at the source so sediment settles out before leaving the site. Straw bale barriers fit this purpose as a temporary perimeter sediment control measure. Placed across drainage paths or along the downhill edge of disturbed areas, they slow the flow, trap sediment as it flows through, and give it a chance to settle out before the water can reach storm drains or waterways. They’re simple to install, inexpensive, and easy to remove or replace as site conditions change, which is why they’re frequently cited as a clear example of a sediment control BMP.

Rock check structures or riprap are mainly about dissipating energy and protecting channels from erosion, not primarily about trapping sediment at the site boundary. Inlet barriers and filter bags are also sediment-control tools, but straw bale barriers are the classic, straightforward example used to illustrate a temporary perimeter sediment control BMP on construction sites.