—Carrie Muenks, Michael Baker, Jr., Inc.
The U.S. Army Corps of Engineers (USACE) is leading the development of the nationwide long-term levee inventory. To aid USACE in creating standardized levee data intended for the National Levee Database (NLD), a customized Esri ArcGIS extension was created that will be utilized by all USACE Districts, allowing data input from ground surveys, quality assessment, visualization, basic analysis, and ongoing maintenance of levee data. The USACE Levee Inventory Tools extension was designed to incorporate levee data from external sources, perform necessary QC checks associated with NLD data validation, create levee centerline records from 3-dimensional survey points, and plot levee centerlines and cross section profiles for review and basic analysis. This extension enables easier compliance with data standardization rules, improves efficiency and effectiveness, and ensures the quality of the levee inventory efforts in all USACE Districts, so that each District's levee information can be seamlessly integrated into one national source.