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Erosion and Sediment Control Tip #95

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I often hear the statement that “It’s flooding like I have NEVER seen it flood before”.  Sometimes it is easy to blame this on Climate Change , but it can be caused by land use changes.  For example, a watershed that changes from a Runoff Curve Number of 70 (a lot of woods and green space) to 95 (urbanized) can experience flooding more often. In this scenario, the runoff from a 2-year, 24-hour (50% chance of occurrence) event in the urbanized watershed can resemble the runoff from a 25-year, 24-hour (4% chance of occurring) event in the green watershed . So, it floods more frequently.  Something to think about!   Perry L Oakes, PE Alabama’s Erosion and Sediment Control Program Manager
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Erosion and Sediment Control Tip #94

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Are you part of the stormwater problem or part of the solution?  Sometimes it is very evident.   Perry L Oakes, PE Alabama’s Erosion and Sediment Control Program Manager
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Erosion and Sediment Control Tip #93

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  When block sod is placed in a potentially high flow area, either stake it or cover it with netting. It takes the roots a while to peg the sod down. That’s much easier than repairing or replacing it.   _____________________________________________________________________________ The FINAL day for on-line registration for Clear Water Alabama is 9/18!!   https://www.alabamastormwater.org/clear-water-alabama     Perry L Oakes, PE Alabama’s Erosion and Sediment Control Program Manager
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Erosion and Sediment Control Tip #92

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  Just from a maintenance standpoint, isn’t it nice that we now have much better alternatives for stabilizing concentrated flow areas?   Perry L Oakes, PE Program Coordinator AL Erosion and Sediment Control Program
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Erosion and Sediment Control Tip #91

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  When a construction site is “in” the stream, use a Stream Diversion Channel to keep “off-site” water clean as it goes through the site.   Perry L Oakes, PE Program Coordinator AL Erosion and Sediment Control Program
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Erosion and Sediment Control Tip #90

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  A reminder that when the soil is covered, erosion is prevented.   GREEN IS GOOD.  Keep vegetation if it doesn’t have to be cleared and create vegetative cover at every opportunity on a construction site.    ______________________________________ Have you registered for Clear Water Alabama?   https://alabamasoilandwater.gov/alesc-clearwater/     Perry L Oakes, PE Program Coordinator AL Erosion and Sediment Control Program  
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Erosion and Sediment Control Tip #89

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  When a concentrated flow area needs armoring, never stop armoring until the flow gets to a stable outlet.   ___________________________________________________________________________________ Registration is open for CLEAR WATER ALABAMA 9/24-25, at the Pell City Civic Center.   Find out more information, sponsorship, and registration, go here:  https://alabamasoilandwater.gov/alesc-clearwater/  
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