Overview
Armoring will increase resiliency against severe wave overtopping caused by hurricane storm surges greater than a 100-year storm event. The structural features of armoring can be in the form of natural or artificial material that is placed on or around a levee or floodwall. Armoring will help reduce scour and protect the integrity of the flood defense structure when confronted with severe wave overtopping from greater than 100-year storm surges.
Critical Areas Requiring Armoring
Levee Protected Side Slopes - particularly the inflection point at the toe
Transition Points between levees & structures
Solutions will vary with location and will be determined by the overtopping flow rates and velocities
Armoring Types Investigated
Grass**
Soil Cement Treatments**
Erosion Control Blankets
Turn Reinforcement Mat**
Rock Riprap
Gabions
Concrete Slope Paving
Open Stone Asphalt
Fabric Formed Concrete
Geogrds
Articulated Concrete Block (ACB)**
**USACE commissioned tests of these materials at Colorado State University
Turf Reinforcement Mat
Articulated Concrete Block