May 27, 2011

Excavation for Conduit-Dirt On Wrong Side

Filed under: Video — Sheetflow @ 7:48 am

Might have been better to place the dirt on the other side of the trench, or keep it covered.

May 20, 2011

Pump, Plug and Infiltration Pond Used to Dispose of Turbid Water

Filed under: Video — Sheetflow @ 7:43 am

Construction erosion and sediment control is really just temporary management of stormwater until the permanent, post-construction stormwater system is functional. Stormwater from this 3 acre site is managed by pumping turbid runoff to an on-site, infiltration pond.

May 14, 2011

Geotextile and Foam Check Dam Bad Installation

Filed under: Video — Sheetflow @ 7:00 am

Yet another example of poorly installed and maintained check dams. Even worse, it’s hard to install geotextile and foam check damsincorrectly. Here is an installation detail to use as a guide for proper installation:Geotextile-encased Check Dam

May 7, 2011

Pipe Slope Drain is Too Short

Filed under: Video — Sheetflow @ 7:08 am

Pipe slope drains are a great best management practice for conveying water down to the base of a slope. Water allowed to flow over a slope will cause rills and gullies to form, depositing tons of sediment at the bottom of the slope. This clip shows a good application of a pipe slope drain, except the pipe doesn’t go to the base of the slope.

May 1, 2011

Raindrop Impact in Slow Motion

Filed under: Video — Sheetflow @ 7:00 am

Researchers from Vanderbilt University have shed new light on the process of water erosion by analyzing slow motion images of rain drops striking sand grains.

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