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Erosion Control

Hydroseeding

A spray-on mixture of seed, mulch, fertilizer, and tackifier used to establish vegetation on disturbed soil.

Inspection Checklist

  • Uniform coverage with no large bare spots (shadows).
  • Applied to properly roughened/prepared soil.
  • Appropriate seed mix used for the season/climate.
  • No overspray on impervious surfaces (roads, walks).

Common Failures

  • Rilling/gullies forming underneath the mulch layer.
  • Washed away by heavy rain before curing (requires 24h dry time usually).
  • Applied to compacted soil where seed cannot root.

Maintenance & Corrections

  • 1. Re-apply to bare spots or areas of washout.
  • 2. Ensure adequate moisture (irrigation) is provided for germination.
  • 3. Keep traffic off seeded areas.
Inspection Freq: Weekly until vegetation is established (70% density).

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