Specifications
PART 1: GENERAL
Summary
Ninety7 wattle is an innovative and environmentally conscious erosion and sediment control product designed to reduce sediment loss from construction sites and other storm-water runoff-prone areas.
Other uses include re-vegetating slopes, stream-banks and wetlands, and areas where revegetation may be needed.
It is 100% biodegradable and does not contribute to the long-term environmental impact commonly associated with traditional plastic-based netting products.
Material Composition
Outer Fabric:
Natural fibers (cotton and jute) which are UV resistant for a reasonable amount of time, and resist degradation from sunlight.
Fill Material:
Plant-based straw for internal support to slow water velocity.
Size and Dimensions
Length: 10 and 25 feet.
Diameter: 9, 12, and 20 inches.
Strength, Performance, and Durability
The Ninety7 wattle has enough strength to slow fast moving water, trap sediment and allow for gradual release. It will decompose over a period of 24 months, depending on region, moisture and temperature.
Delivery, Handling and Storage
The Ninety7 wattles are rolled into cylindrical shapes and shipped on pallets.
They should be stored in a dry place free from moisture and rodents.
PART II: THE PRODUCT
It is manufactured by Global Management Group, Inc., in Graysville, Alabama.
Phone Number: (205) 514-6645
Its biodegradable nature, eco-friendly materials, structural flexibility, and wildlife safety make it ideal for projects that prioritize environmental stewardship.
The nature of its construction allows it to fit uneven ground surfaces, sealing gaps and preventing unfiltered water from passing underneath. It can be installed over bare soil, in channels, over rolled erosion control products, on slopes, around inlets and stockpiles, or any other areas filtration may be needed.
PART III: IMPLEMENTATION
Ninety7 Wattle Manufacturer Representation
Material components of the Ninety7 wattle and the installation methods ensure maximum performance. The following installation guidelines are based on the manufacturer’s recommendations but project specifications may supersede these guidelines. Refer to the contract documents or project engineer for detailed installation procedures.
Site Preparation
Remove tree roots, rocks, and any other debris from the desired area of installation.
Level and smooth the area as much as possible.
Proper Spacing
Slope gradient and soil type should determine the vertical spacing of Ninety7 wattles.
For gentle slopes of <20%, the vertical spacing should be fifty feet apart.
For moderate slopes of 20% to 35%, vertical spacing should be thirty feet apart.
For steep slopes of 35% to 45%, vertical spacing should be twenty feet apart.
Adjustments can be made for vertical rows based on soil type:
For soft, loamy soils, rows can be closer together.
For hard, rocky soils, rows can be further apart.
Ninety7 wattles are not recommended for use on slopes above 45%.
Proper Staking/Anchoring
To ensure intimate contact with the ground, Ninety7 wattles are anchored using wooden stakes or sandbags, or a combination of the two.
Staking should be done through the handles found along the length of Ninety7 wattles.
For installation along sidewalks or at curb inlets, sandbags and blocks can be used to anchor Ninety7 wattles.
Stakes should be of minimum classification of 2”x2”, and not less than 36” long.
Installation
Prepare area of installation per project specifications.
Start installing Ninety7 wattles from the bottom of the slope and work up.
Firmly place the Ninety7 wattles in the desired area, perpendicular to flow with ends curled slightly upstream to prevent higher velocity water from going around the ends.
Drive the wooden stakes securely into the ground through the handles until 5”- 6” of stakes remain exposed. To avoid compromising the integrity of the Ninety7 wattle, do not pierce its body.
In cases of curb inlets, place the Ninety7 wattles parallel to the curb inlet and snake the Ninety7 wattle around, ensuring the ends overlap and are secured in place. Use more than one Ninety7 wattle if needed.
Ninety7 wattles placed in channel bottoms should extend up the side slopes three feet above the anticipated high-water mark, and perpendicular to the flow of water. This will prevent water from running around the ends and causing additional erosion.
When multiple Ninety7 wattles are placed in a row, a 12” overlap should be allowed. Ninety7 wattles should not be abutted.
Maintenance and Cleanup
Inspect the Ninety7 wattles as required by project specifications and following rainfall events. Repair torn, unraveling, or slumping Ninety7 wattles, and reinforce the stakes.
To ensure Ninety7 wattles have adequate sediment holding capacity at all times, sediment should be removed when it accumulates to three-quarters (3/4) of the Ninety7 wattles’ height.
In slopes, stream-banks and wetlands applications, Ninety7 wattles should remain permanently in place to stabilize the areas and help support vegetation growth. They will breakdown into organic matter that will not cause harm to wildlife or plant life.
If removal is desired at the completion of the project, ensure up gradient areas are stabilized. Collect and dispose of the accumulated sediment, fill and compact depressions and other ground disturbance.
Recycle the used Ninety7 wattles and wooded stakes.
Retain Ninety7 Wattle in Situ
In some applications, it is more beneficial to leave used Ninety7 wattles in place.
Cut the used Ninety7 wattle across its length to expose its interior content (plant-based material)
Evenly distribute the interior contents and accumulated sediment over the wattle fabric and incorporate it in the surrounding areas. This material will fertilize the soil, increase filtration, add ground roughness, and support vegetation growth.
Method of Measurement
Ninety7 wattles shall be measured for payment as individual items.
Payment
Ninety7 wattles shall be paid for at unit price per each individual item.
Summary
Ninety7 wattle is an innovative and environmentally conscious erosion and sediment control product designed to reduce sediment loss from construction sites and other storm-water runoff-prone areas.
Other uses include re-vegetating slopes, stream-banks and wetlands, and areas where revegetation may be needed.
It is 100% biodegradable and does not contribute to the long-term environmental impact commonly associated with traditional plastic-based netting products.
Material Composition
Outer Fabric:
Natural fibers (cotton and jute) which are UV resistant for a reasonable amount of time, and resist degradation from sunlight.
Fill Material:
Plant-based straw for internal support to slow water velocity.
Size and Dimensions
Length: 10 and 25 feet.
Diameter: 9, 12, and 20 inches.
Strength, Performance, and Durability
The Ninety7 wattle has enough strength to slow fast moving water, trap sediment and allow for gradual release. It will decompose over a period of 24 months, depending on region, moisture and temperature.
Delivery, Handling and Storage
The Ninety7 wattles are rolled into cylindrical shapes and shipped on pallets.
They should be stored in a dry place free from moisture and rodents.
PART II: THE PRODUCT
It is manufactured by Global Management Group, Inc., in Graysville, Alabama.
Phone Number: (205) 514-6645
Its biodegradable nature, eco-friendly materials, structural flexibility, and wildlife safety make it ideal for projects that prioritize environmental stewardship.
The nature of its construction allows it to fit uneven ground surfaces, sealing gaps and preventing unfiltered water from passing underneath. It can be installed over bare soil, in channels, over rolled erosion control products, on slopes, around inlets and stockpiles, or any other areas filtration may be needed.
PART III: IMPLEMENTATION
Ninety7 Wattle Manufacturer Representation
Material components of the Ninety7 wattle and the installation methods ensure maximum performance. The following installation guidelines are based on the manufacturer’s recommendations but project specifications may supersede these guidelines. Refer to the contract documents or project engineer for detailed installation procedures.
Site Preparation
Remove tree roots, rocks, and any other debris from the desired area of installation.
Level and smooth the area as much as possible.
Proper Spacing
Slope gradient and soil type should determine the vertical spacing of Ninety7 wattles.
For gentle slopes of <20%, the vertical spacing should be fifty feet apart.
For moderate slopes of 20% to 35%, vertical spacing should be thirty feet apart.
For steep slopes of 35% to 45%, vertical spacing should be twenty feet apart.
Adjustments can be made for vertical rows based on soil type:
For soft, loamy soils, rows can be closer together.
For hard, rocky soils, rows can be further apart.
Ninety7 wattles are not recommended for use on slopes above 45%.
Proper Staking/Anchoring
To ensure intimate contact with the ground, Ninety7 wattles are anchored using wooden stakes or sandbags, or a combination of the two.
Staking should be done through the handles found along the length of Ninety7 wattles.
For installation along sidewalks or at curb inlets, sandbags and blocks can be used to anchor Ninety7 wattles.
Stakes should be of minimum classification of 2”x2”, and not less than 36” long.
Installation
Prepare area of installation per project specifications.
Start installing Ninety7 wattles from the bottom of the slope and work up.
Firmly place the Ninety7 wattles in the desired area, perpendicular to flow with ends curled slightly upstream to prevent higher velocity water from going around the ends.
Drive the wooden stakes securely into the ground through the handles until 5”- 6” of stakes remain exposed. To avoid compromising the integrity of the Ninety7 wattle, do not pierce its body.
In cases of curb inlets, place the Ninety7 wattles parallel to the curb inlet and snake the Ninety7 wattle around, ensuring the ends overlap and are secured in place. Use more than one Ninety7 wattle if needed.
Ninety7 wattles placed in channel bottoms should extend up the side slopes three feet above the anticipated high-water mark, and perpendicular to the flow of water. This will prevent water from running around the ends and causing additional erosion.
When multiple Ninety7 wattles are placed in a row, a 12” overlap should be allowed. Ninety7 wattles should not be abutted.
Maintenance and Cleanup
Inspect the Ninety7 wattles as required by project specifications and following rainfall events. Repair torn, unraveling, or slumping Ninety7 wattles, and reinforce the stakes.
To ensure Ninety7 wattles have adequate sediment holding capacity at all times, sediment should be removed when it accumulates to three-quarters (3/4) of the Ninety7 wattles’ height.
In slopes, stream-banks and wetlands applications, Ninety7 wattles should remain permanently in place to stabilize the areas and help support vegetation growth. They will breakdown into organic matter that will not cause harm to wildlife or plant life.
If removal is desired at the completion of the project, ensure up gradient areas are stabilized. Collect and dispose of the accumulated sediment, fill and compact depressions and other ground disturbance.
Recycle the used Ninety7 wattles and wooded stakes.
Retain Ninety7 Wattle in Situ
In some applications, it is more beneficial to leave used Ninety7 wattles in place.
Cut the used Ninety7 wattle across its length to expose its interior content (plant-based material)
Evenly distribute the interior contents and accumulated sediment over the wattle fabric and incorporate it in the surrounding areas. This material will fertilize the soil, increase filtration, add ground roughness, and support vegetation growth.
Method of Measurement
Ninety7 wattles shall be measured for payment as individual items.
Payment
Ninety7 wattles shall be paid for at unit price per each individual item.