Silt fence / outlet placement
Silt fence runs and outlets, checked against Table 6.62a
Enter the run length, slope, and drainage area; the workbench resolves the Table 6.62a slope band, checks the manual's slope-length and quarter-acre-per-100-ft limits, and turns the per-outlet area budget into a required outlet count and maximum spacing for the run.
What the workbench does
- Table 6.62a slope-band lookup with maximum slope length and area per 100 ft of fence
- Drainage area as a uniform strip (slope length × run length, the manual's example method) or entered from the plan
- Minimum fence length from both the Table 6.62a area and the quarter-acre-per-100-ft rule
- Required outlet count and maximum outlet spacing from the per-outlet area budget
- Protected-outlet limits carried to the detail: 1.5 ft ponding, 2 ft fence height, 4 ft post spacing
Sources it answers to
NC E&SC Manual, Practice 6.62 — Sediment Fence (Silt Fence)
design criteria and drainage-area limits
Table 6.62a — Maximum Slope Length and Slope
slope-length and area limits by slope band
What you walk away with
Output- Slope-band limits, drainage-area checks, and outlet placement in one results view
- Outlet count and spacing ready for the plan callout
- Submittal-ready calc-sheet PDF
Explore the other modules: Skimmer basin design · Swale (grass-lined channel) · Outlet protection / riprap aprons