EcoWattle Erosion Control Logs: The Basics

• EcoWattles are available in 12″ and 9″ diameters, 10′ long.

• 12″ EcoWattles don’t need trenching and should need to be staked only when installed on slopes greater than 3.5:1 (28%) or across channels or ditches.

• 9″ EcoWattles don’t need trenching and may not require staking.

• The wood mulch in EcoWattles will fully degrade in 30 to 40 months, depending on the exposure to elements that affect degradation rates – sun, extreme temperatures, humidity, precipitation, fungi, insects and bacteria.

EcoWattle Erosion Control Logs: The Specs

Weight:

• 12″x10′ EcoWattles weigh 10 – 11 pounds per linear foot

• 9″x10′ EcoWattles weigh 7 – 8 pounds per linear foot.

Fill Material:

Fully de-barked, ground and screened East Texas pine. Weed-free, less than 2% fines.

Containment Material:

• Polyethylene (PE) Netting – UV (photo) degradable in 2 – 3 years in most locations; tensile strength: +/- 59 psi.

• Bio Sock – High Density Polyethylene (HDPE) with a degrading “trigger” added. Engineered to maintain 100% of its strength for 6 months after installation then the trigger starts the degradation process. Fully degraded in 18 – 24 months; tensile strength: +/- 46 psi.

• “Natural” Netting – material: tencel (wood fiber); 100% biodegradable in 1 – 6 months depending on environment; tensile strength: +/- 41 psi.

Why EcoWattles Work

• The dry weight of EcoWattles eliminates the problem of floating during the initial period of rainfall and the weight of a wet erosion control log prevents it from being displaced in all but extremely heavy rain events.

• Undermining is avoided by the flexibility of the mulch and the netting allowing the erosion control log to settle onto the ground before and during rain events.

• Excessive ponding and resulting overflowing are avoided due to the flow-through rate afforded by the size of the mulch pieces and holes of the netting.

• Suspended soil and other particles are filtered from water runoff that flows through the wood-mulch-filled erosion control log; the wood-mulch-filled erosion control log prevents unacceptable levels of water borne sediment from infiltrating protected areas.