Erosion Fencing

Erosion fencing, often called silt fence or sediment control fence, is a simple, cost-effective barrier that keeps soil on-site during construction, landscaping, excavation, and grading. By slowing stormwater runoff and filtering sediment, these fences help protect storm drains, nearby waterways, and neighboring properties, while supporting SWPPP/NPDES and local stormwater compliance. They also improve site cleanliness and reduce cleanup and rework after heavy rain.

Most options use UV-stabilized woven geotextile attached to wood stakes or steel T-posts. You’ll find standard silt fence for gentle slopes and short flow paths, wire-backed silt fence for added strength, and high-flow fabrics designed for fine soils or heavier runoff. Rolls typically come pre-attached to stakes for fast layout, with multiple heights and fabric weights to match site demands. Accessories include T-post clips, zip ties, trenching shovels, stake drivers, and fence plows for large runs.

How to choose:
- Match fabric grade to soil type, slope, and rainfall intensity.
- Use reinforced or wire-backed fence for long drainage areas, steep grades, or DOT work.
- Follow local specifications for height, post spacing, and trench depth.

Installation tips:
- Place on contour to intercept sheet flow, not in channels of concentrated water.
- Trench 6–8 inches and “toe-in” the fabric to prevent undercutting.
- Space posts 6–10 feet apart (closer in steep or soft ground).
- Turn fence ends upslope to create J-hooks and prevent end-around flow.
- Double up near sensitive waters or at the bottom of long slopes.

Maintenance matters:
- Inspect after every storm and weekly during active work.
- Remove accumulated sediment when it reaches one-third the fence height.
- Repair tears, re-tension fabric, and replace damaged posts promptly.
- Remove fencing and stabilize disturbed soil at project closeout.

For added protection, pair erosion fencing with inlet protection, wattles, erosion control blankets, and stabilized construction entrances.