Gateway BP(2.2)-CS210526
Propex Operating Company, LLC - 4019 Industry Drive, Chattanooga, TN 37416 - p 800 621 1273 - www.propexglobal.com
May 26, 2021
RE: Naterra International Grapevine Creek Protection
To Whom It May Concern,
We want to thank you for considering the use of Propex products and solutions for erosion control for the Naterra
International project in Coppell, TX. We understand there are slopes graded at 2 Horizontal : 1 Vertical (2H:1V) on site
that need erosion protection. Generally, we believe this will be a good application for ARMORMAX® 75
Propex Engineered Earth Solutions have been protecting and stabilizing channels, slopes, levees, and stream banks
for over 20 years. With over 35 million square yards of successful installations, Propex can provide solutions such as
LANDLOK®, PYRAMAT®, and ARMORMAX® to design for the most challenging of environments. We would like to
submit the following information in order to utilize our ARMORMAX® 75 Engineered Earth Armoring Solution™ to
protect the slopes against erosion.
ARMORMAX 75 is an Engineered Earth Armoring Solution used for erosion control. It is composed of two components:
PYRAMAT 75 HPTRM and Engineered Earth Anchors. The PYRAMAT 75 component provides resistance to erosion and
distributes the load amongst the anchors. The anchor component is specifically designed and tested for compatibility
and performance with HPTRM and works to permanently secure the PYRAMAT 75 HPTRM.
Sincerely,
Matt Patton, P.E.
Applications Engineer, GeoSolutions
Registered P.E. in TN
Propex Operating Company, LLC
Drew Loizeaux, P.E.
Engineering Services Manager, GeoSolutions
Registered P.E. in TN
Propex Operating Company, LLC