Sheetflow Construction Erosion and Sediment Control

October 31, 2019

Is This Silt Fence Necessary?

Filed under: Photo — Tags: , , , , , , , , , — Sheetflow @ 1:24 am
Perimeter Silt Fence Photo: David Jenkins

Overlooking the fact that this silt fence installation needs some maintenance, I wonder if it was ever really needed in this location? The slope grades to the fence are minimal and not very long, and the roadside ditch line is graded so that water will drain away from the road.

This type of silt fence installation is appropriate at the base of long, steep slopes, or if there is risk of sediment travelling off site. Also, all of the materials used will likely be land filled and not reused, including the wire backing and the “T” posts.

If this were my site, I would have installed orange safety fence with steel “T” posts, maybe with a compost berm along the base, on the project side. The safety fence can be easily removed and reused later, and the compost could be raked into the ditch line and hydroseeded.

June 4, 2019

Construction Erosion Control – Rough vs Smooth Slope

Dramatic example of the effect of rainfall on a smooth versus rough slope. The rough side was “track walked” using a small Caterpiller tractor, the other side was “back-bladed” smooth with the same tractor. Both test plots were prepared with the same soil and then sprayed with bonded fiber matrix (BFM) with seed and fertilizer.

Powered by WordPress