Specifications include, but are not limited to: The Consultant shall develop hydrologic and hydraulic numerical models of the contract area drainage basins. The Consultant shall use Hydrologic Engineering Center (HEC) suite of software for hydrology, hydraulics and consequence assessment and risk assessment. 1.1. Data Storage System (DSS) The HEC-DSS is a common database for HEC modeling applications and allows for the seamless transfer of data between applications. 1.2. HEC-Statistical Software Package (HEC-SSP) This software allows users to perform statistical analyses of hydrologic data. HEC-SSP can perform flood flow frequency analysis based on Bulletin 17B (Interagency Advisory Committee on Water Data, 1982) and Bulletin 17C (England, et al., 2015), a generalized frequency analysis on not only flow data but other hydrologic data as well, a volume frequency analysis on high and low flows, a duration analysis, a coincident frequency analysis, and a balanced hydrograph analysis. 1.3. HEC-Meteorological Visual Utility Engine (HEC-MetVUE) This software provides tools for processing and manipulating meteorological data to support hydrologic modeling. 1.4. HEC-Hydrologic Modeling System (HEC-HMS) This software is designed to simulate the complete hydrologic processes of dendritic watershed systems. The software includes many traditional hydrologic analysis procedures such as event infiltration, unit hydrographs, and hydrologic routing. 1.5. HEC-River Analysis System (HEC-RAS) This software allows the user to perform one-dimensional steady flow, one and twodimensional unsteady flow calculations, sediment transport/mobile bed computations, and water temperature/water quality modeling.