ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG United States
The River Engineering Branch of the U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, conducted a two-dimensional numerical model investigation of the White Sands Missile Range located approximately 24.1 kilometers east of Las Cruces, NM. The range has experienced flooding within the installation during past large rainstorm events. The floodwater flowing easterly from the Organ Mountains overtops the levee that protects the installation for extreme events in some locations. The installation becomes more flooded with increasing values of storm return period e.g., 100-year, 500-year. Plans consist of raising the levee elevation in critical locations as well as extending the levee in other areas. Numerical calculations indicated that raising the existing levee by approximately 0.5 meter and adding an extension on the northern portion of the installation as well as a standalone levee south of the installation eliminated flooding from 100-year events.