The United States Section of the International Boundary and Water Commission (IBWC) has 15 miles of flood control levees in the Presidio area. A project was initiated in calendar year 2002 between the IBWC and ERDC-WES to perform a condition assessment of their levees using airborne geophysics and detailed geological mapping of the flood plain. The project includes electromagnetic-induction (EM) data, Light Detection and Ranging data (LIDAR), historical and current aerial photography, geologic and geomorphologic interpretations from historical photography, digital videography, and soils data. These data are part of an enterprise Geographical Information System (eGIS). The eGIS organizes and manipulates all pertinent data for the condition assessment of levees in addition to containing modeling and data visualization tools. Levee segments that were not captured in the IBWC and ERDC-WES project were digitized by GIT using engineering maps provided by IBWC and spatially adjusted with 2008 orthoimagery from 3001, Inc. or ESRI ArcGIS Online World Imagery. Some segments from the IBWC and ERDC-WES project were also field verified by GIT. The following layer iidentifies the levee centerline as digitized from 1996 aerial photography.