Case Study: Blume North Spillway


Case Study Overview

Project: Blume North Spillway
Location: Harrisburg, NC, United States
Project Type: Shoreline Reinforcement
Application: Spillway Protection
ProductS Used: ARMORMAX®

Photo showing erosion caused by stormwater overtopping.


The earthen spillway between two stormwater ponds in a housing development was in need of protection from erosion. As storms would pass through, stormwater would fil upone of the ponds to capacity and excess water would spill over into the other pond. The earth between the ponds was eroding due to continual overtopping from stormwater. The development needed a solution to keep the ponds intake.


ARMORMAX® Engineered Earth Armoring Solution™ was chosen as the system from permanent erosion protection in order to provide an economical and environmentally friendly alternative to the original concrete design. ARMORMAX is comprised of High Performance Turf Reinforcement Mats (HPTRMs) and Engineered Earth Anchors*trade; that work together to lock soil in place and protect against hydraulic stresses. Around 560 square yards of ARMORMAX 75 was installed along the spillway in only three days.

Photo showing ARMORMAX 75 installation, which provided immediate erosion protection..
Photo showing intact ponds and protected spillway after completed installation of ARMORMAX 75.


ARMORMAX 75 reinforces vegetation and promotes sustainable aquatic habitats while protecting the spillway during storms and keeping the ponds intake.

Visit the ARMORMAX® product page to learn more about this Propex® GeoSolutions product.
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