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Preventing Erosion with Best Management Practices (BMPs)

By Zoe Baumberger

Over the past couple months, we’ve taken a deep dive into the importance of keeping dirt in place and using proper stabilization techniques to prevent erosion. Last quarter, we covered some of the different types of erosion. For this final quarter we’re focusing on the Best Management Practices (BMPs) used to control erosion and sediment on construction sites.

Sediment and erosion controls work hand in hand to keep dirt in its place. Sediment controls are designed to stop sediment from leaving a construction site and reaching storm drains, roads and neighboring properties. BMPs like silt fences, check dams, fiber rolls and inlet protection act as physical barriers to trap sediment on-site.

Comparison of two silt fences. The top photo is incorrectly installed by not being trenched in, The bottom silt fence is trenched in and the fence is properly secured to the stakes.
Silt fence incorrectly installed on top. Correctly installed on bottom.
Two types of inlet protection. The top photo shows a catch basin wrapped in silt fence, The bottom photo has the grate of a catch basin wrapped in a bag to catch sediment.
Two examples of inlet protection
A hillside stabilized with an erosion control blanket. There are bales of hay used as check dams going down the slope.
Check dam

Erosion controls such as seeding, mulching, riprap and erosion control blankets/mating help prevent erosion from occurring in the first place by providing stabilization. These practices are key in protecting bare soil from wind and water erosion because the roots, stones, or mats hold the soil in place by covering it from the elements. Erosion controls are simple yet effective! Both sediment and erosion controls are critical tools for maintaining compliance and protecting our waterways from sediment pollution. If you’re wondering which BMP is best for you, please don’t hesitate to call our office at 419-747-8986.

A hillside partially covered in riprap to stabilize it. There is geotextile matting down and some bare soil remaining.
Rip rap being installed to stabilize slope
The same slope several months apart. The top photo shows the hillside mulched. The bottom photo shows the same hillside densely vegetated.
Slope stabilization by seeding & mulching with straw
An erosion control blanket laid over bare soil.
Erosion control blanket/mat

As we wrap up this year long series, it all comes back to one simple principle: keep the dirt where it belongs. Soil is one of our most valuable resources but when it leaves a site it becomes a pollutant. Every mat laid down, seed planted and silt fence trenched in plays a part in preventing erosion and protecting water quality. If there’s one thing to remember going forward it’s that good site management begins with keeping dirt in place.

Photo of Zoe Baumberger, District Technician. Her bio reads "Zoe grew up in Mansfield and now lives in Ashland with her fiance and their two canine companions. She enjoys spending time outdoors whether that’s gardening, admiring native plants or finding new ways to live more sustainably. When she’s not outside, you’ll find her reading or baking while listening to Taylor Swift."