Page 2 - Section3.2-FiltrexxLockDownNetting

290 | Filtrexx ® Low Impact Design Manual | Version 8.0

determined the following:

• Temporary seeding performance can be increased from 52% to 98% effective for rain events ≤ 2 in/ hr and 0.67 in.

• Slope protection (1 in) performance can be increased from 99% to near 100% effective for rain events ≤ 2 in/hr and 0.67 in.

• Temporary seeding performance can be increased from 31% to 54% effective for rain events ≤ 4 in/ hr and 2.0 in.

• Slope protection (1 in) performance can be increased from 61% to 68% effective for rain events ≤ 4 in/hr and 2.0 in.

• Slope protection (2 in) performance can be increased from 67% to 79% effective for rain events ≤ 4 in/hr and 2.0 in.

For more information of this research project see Tech Link 3328.

Installation

1. Temporary seeding/Slope protection/Storm water blankets installed on slopes: greater than or equal to 4:1 shall be tracked; greater than or equal to 2:1 shall be tracked anduse LockDown tm Netting; greater than 1:1 shall use rolled erosion control blankets (RECP) or turf reinforcement mats (TRM).

2. When required, LockDown tm Netting shall be installedprior to the applicationof theTemporary seeding/Slope protection/Storm water blankets.

3. LockDown tm Netting shall be anchored to the soil using 6-8 in (150-200mm) sod staples to be driven along the entire perimeter of the net and netting area.

4. Staples for LockDown tm Netting shall be spaced 2 ft (600mm) apart on all sides.

5. Where more than one roll of LockDown tm Netting is required for slope width or slope length, netting edges shall be overlapped by a minimum of 6 in (150mm).

6. LockDown tm Netting shall be installed from top to bottom (never across) on the slope.

7. LockDown tm Netting shall be installed under the entire area of the Temporary seeding/Slope protection/Storm water blankets, including 10 ft (3m) over the shoulder of the slope.

8. LockDown tm Netting may be installed on top of the Temporary seeding/Slope protection/ Storm water blanket where wind velocities and wind erosion are above normal. All other installation procedures and specifcations are the same as described above.

Inspection & Maintenance

If LockDown tm Netting has been moved by wind or runoff it shall be repaired by restoring contact between soil and Temporary seeding/Slope protection/Storm water blanket interface or surface (if installation is on top of Filtrexx ® management practice) of Temporary seeding/Slope protection/ Storm water blankets; additional staples and Temporary seeding/Slope protection/Storm water blanket application may be required.

Method of Measurement

Bid items shall show measurement as Filtrexx ® LockDown ™ Netting + Filtrexx ® BMP per square ft, per square yd, per square m, per hectare, or per acre installed.

ADDITIONAL INFORMATION

For other references on this topic, including trade magazine and press coverage, visit the Filtrexx ® Website at: http://www.fltrexx.com/resourcespress. htm.

For research reports not included in the Appendix, visit: http://www.fltrexx.com/resourcesreports.htm.

Filtrexx ® International, LLC Technical Support 35481 Grafton Eastern Grafton, OH 44044 440-926-2607 440-926-4021 (fax) Website: www.fltrexx.com Email: info@fltrexx.com

See website or call for complete list of international installers.

The information contained herein may be subject to confdential intellectual property of Filtrexx ® International, LLC, including but not limited to US Patent 7,226,240 or Patents Pending and is the property of Filtrexx ® International, LLC. Unauthorized reproduction prohibited.

Filtrexx ® is a Registered Trademark of Filtrexx ® international, LLC.

Copyright 2009, Filtrexx ® International, LLC, all rights reserved.