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Hard Armor

Robust, High-Quality Capabilities

When it comes to the method of choice for high hydraulic stresses, Hard Armor is the most robust type of erosion control. Although this solution incorporates concrete or stone, it is routinely vegetated, thus allowing for the protection of property and infrastructure as well as providing habitat.

Shoreline application of Kyowa Filter Units

Kyowa Filter Units

Kyowa Filter Units are an innovative erosion control and slope stabilization measure. They allow smaller aggregate gradations to behave like large boulders. Furthermore, these marine-grade polyester nets come in a variety of sizes and weaves. Consequently, providing a solution that resists the forces of both earth and water.

  • Protect new construction
  • Stabilize failed or failing slopes
  • Mitigate scour holes at or near critical structures

Features and Benefits of Hard Armor Erosion Control Capabilities:

  • Firstly, the flexible nature allows the units to conform to non-uniform surfaces and respond to small settlements over time without failure
  • Filled on-site with aggregate to provide a mixture of advanced technology and local materials for quick installation and maximum cost-effectiveness
  • Multiple units may be connected for both higher design velocities and greater factors of safety
  • 30+ year polymer net UV stability provides a long design life
  • Backfill with topsoil and promote vegetative growth
ferguson-waterworks-walls-and-slopes-hard-armor-A-Jacks -01

A-Jacks Concrete Hard Armor

These units interlock into a matrix to both dissipate energy and resist the erosive forces of water. As a result of extensive modeling and with a long history of use, A-Jacks are suited for the most stringent design scenarios. For example, shoreline wave protection, toe stabilization, energy dissipation, and scour protection at dam spillways. In addition, other Concrete Hard Armor applications include scour hole mitigation in rivers, lakes, and streams, and the protection of critical bridge substructures.

  • Available in a variety of sizes
  • The two-component design offers economical transport and easy on-site assembly
  • Hand-place or set in bundles using heavy equipment
  • Meet FHWA HEC-23 design guidelines for scour countermeasures
A concrete mattress system, Incomat Hard Armor, surrounding a man-made spillway

Incomat Hard Armor

Undoubtedly a next-generation concrete mattress system, Incomat comes in a variety of sizes for versatility. Due to the unique features of Incomat, it can be placed under conditions that may be more difficult for other types of hard armor. They also offer scour protection with moderately uneven subgrade and are suitable for underwater areas requiring scour mitigation. Furthermore, Incomat is a great erosion control solution for low clearance areas such as bridge spill slopes.

Standard: protects with constant thickness.
Incomat Flex: is a permeable mattress with greater weight per unit area for increased performance.
Filterpoint: provides a permeable solution for lower hydraulic stresses.
IncomatCrib: has unique rectangular recesses that can be filled with soil and vegetated.

Rolled Concrete from Ferguson Waterworks

Rolled Concrete

In detail, Rolled Concrete is a high-strength geogrid encapsulated in a matrix of concrete blocks. The blocks both control erosion and provide stable driving/walking surfaces. Consequently, this system works well in shoreline and slope applications. Rolled concrete delivers innovative, cost-effective solutions on sites throughout the world.

To sum it up, here are some key applications:

  • Shoreline Protection
  • Landfill Down Chutes
  • Roadside Drainage
  • Boat Ramps
  • Slopes
  • Pipeline Protection
  • Embankments
  • Residential Waterways
  • Canals
  • Retention Basins
  • Channels
  • Wetland Protection

Key Features and Benefits:

  • Quick and simple to install
  • Easy lifting and anchoring process
  • Competitive costs
  • Engineering support
  • Project-specific mat layouts
  • Custom widths available
  • Customizable backing options
  • Easy to maintain
An Articulate Concrete Blocks, also known as ACBs, from Ferguson Waterworks

Articulate Concrete Blocks (ACBs)

Whether looking for rigidity, flexibility, or both, Articulated Concrete Blocks are a premium solution for erosion control. Firstly, they are aesthetically pleasing and functional, unlike rip­rap, poured-in-place concrete, and other heavy-duty erosion protection systems. What’s more, it is easy to install. In comparison to other systems, life-cycle costs are less because it is a permanent erosion control solution.

>How it works:

To explain, ACBs are a flexible, interlocking matrix of uniform size, shape, and weight. Furthermore, they connect by a series of cables that pass longitudinally through pre-formed ducts in each block. Most importantly, they combine the favorable aspects of lightweight blankets and meshes which means ACBs shift with the ground instead of cracking–whereas a slab of concrete generally breaks. Additionally, ACBs are more porous and flexible, encourage vegetation, and enhance habitat. To sum it up, they are non-erodible, self-weight, and have the high tractive force resistance of a rigid lining.

Key Features and Benefits:

  • Durable
  • Stable, resisting both lateral displacement and vertical uplift
  • Becomes part of the landscape as well as the environment quickly
  • Affordable

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