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BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

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• Bind together long live branch cuttings approximately 0.5 inches in diameterto form bundles that vary in length from 4 to 8 feet. Alternate the directionof cuttings so approximately one-half of the rootward ends are at each end ofthe bundle. Fasten bundles every 18 inches using durable twine or wire andcompress to no more than 6 to 8 inches in diameter.• Space trenches a minimum of 3 feet apart and excavate trenches to containabout two-thirds the diameter of the bundle.• Overlap bundles a minimum of 12 inches within the trench and secure usingwooden stakes every 2 to 3 feet. Size stakes at least 2.5 feet long on cutslopes and 3 feet long on fill slopes. Drive them directly through the bundlesuntil flush with the top and use extra at connections and overlaps.• Install live stakes on the down slope side of bundles, protruding 2-3 inchesabove the top of the bundle.• Backfill trenches with moist soil, ensuring good soil-plant contact in andaround the wattles. The tops of wattles should remain slightly visible wheninstallation is complete.• Use mulch or erosion control blankets to secure disturbed soil and preventerosion in between rows of willow wattles. Refer to Sections 4.2.3.2, BareSoil Protection and 4.5.2.5, Erosion Control Blanket Systems for moredetail.Chapter 4: <strong>BMP</strong> ToolkitTRPA <strong>BMP</strong> Handbook4.2.2.1-Vegetated Slope Stabilization 2012Page 4

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