The Hydrologic Engineering Center (CEIWR-HEC) exists to support the U.S. Army Corps of Engineers (USACE) Civil Works water resources and water management responsibilities by increasing USACE technical capability in hydrologic engineering and water resources planning and management. CEIWR-HEC provides services to USACE in research, software development, training, and technical assistance, which reflects the state-of-the-art in hydrologic engineering and closely associated planning analysis. Major products are technical methods documents, computer software and user’s manuals, and technical assistance. The products are developed for USACE; however, the products are available to the public and in many cases have become an industry standard.