during installation of the system in the flume at CSU. The seam was sewn using a similar machine and methodology as used for field installations. The CEST revetment system withstood the maximum wave overtopping rate that could be applied by the wave overtopping simulator of 4 cubic feet/ second/foot (0.37 m3/s/m). This was the peak wave overtopping rate and the most energetic wave overtopping conditions that could be produced in any existing wave overtopping experimental facility. Wave overtopping conditions represented a generic 500-year hurricane (0.2% annual exceedance probability) in New Orleans, La. (Hughes et al. 2012 and Thornton et al. 2012). Testing continued for a total of 13 hours with CEST being subjected to 165,600 cubic feet/foot (15,393 m3/m) of cumulative overtopping wave volume. Testing of CEST in the wave overtopping simulator is shown in Figure 2 on page 18. Upon completion of testing, the CEST was inspected to document the condition of the system. The CEST was then removed to document the condition of the underlying silty sand subgrade. The CEST revetment system performed well in maintaining the underlying, highly erodible soils during these severe conditions. The CEST outperformed other revetment systems, which have published results after testing in the wave overtop simulator (Thornton et al. 2012). www.GeosyntheticsMagazine.com 15http://www.geomembranes.com http://www.GeosyntheticsMagazine.com