|
Hurricane & Flood Risk Reduction |
|
HSDRRS Armoring
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
![Armoring1](armoring/Picture3.jpg)
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
![armoring3](armoring/Picture1.jpg)
Turf Reinforcement Mat
![armoring 4](armoring/Picture4.jpg)
Articulated Concrete Block
High Performance Turf Reinforcement Mat (HPTRM) for improving the erosion resistance of clay
levees within the Hurricane and Storm Damage Risk Reduction System with the ability to add
mower wheel load capacity to wet soil
Sources Sought Notice: W912P8-12-SS-0007
Geotechnical Investigation 100-Year Design - 100% EAR West Bank H.P.P. HWY 45 Levee
Point of Contact
Webmaster
(504)862-1606
Updated:7/9/2012
|
|