Case Study: Mackintosh Spillway


Case Study Overview

Project: Lexington Street
Location: Manor, TX, United States
Project Type: Shoreline Stabilization
Application: Spillway Protection
ProductS Used: ARMORMAX®

Photo showing emergency spillway and need for erosion protection.


Mackintosh on the Lake, a home development community in North Carolina, has a large stormwater pond and multiple forebays to handle the community's runoff storage. The emergency spillway allows for excess water to properly drain from the detention pond when the capacity has been exceeded. The spillway was in need of protection in order to control erosion and reduce potential damage to businesses and residences downstream.


ARMORMAX® Engineered Earth Armoring Solution™ was chosen because it is a soft armoring solution that is easily installed, improves water quality and is resistant to non-hydraulic stresses such as mower and maintenance equipment.

Photo showing 400 square yards of ARMORMAX being installed to protect the spillway.
Photo showing spillway performance after completed installation of ARMORMAX 75.


Approximately 400 square yards of ARMORMAX® was installed in the first section and the spillway is performing well.

Visit the ARMORMAX® product page to learn more about this Propex® GeoSolutions product.
Printable Case Study PDF
Product Data Sheets
Additional Case Studies Featuring ARMORMAX®