Tulsa District Corps of Engineers use RiverWare modeling capabilities to analyze existing reservoir and system operational criteria. There are 15 reservoirs configured in the Red River basin model that covers the main stem and tributaries located in Oklahoma, Arkansas, Texas, and Louisiana. Numerous stream control points are incorporated that define constraints and requirements for system operation. Historic surface hydrology (71 years) is applied to existing reservoir configuration with daily time step computations with RiverWare’s rule based simulation approach and methods. As a result, the complicated reservoir and system management plan is well depicted with RiverWare modeling. Major aspects of the modeling include rule configuration for reservoir surcharge, control point regulation evaluation, reservoir release determination, low flow, reservoir diversions, and hydropower. The strength of Tulsa Districts’ RiverWare modeling is investigating proposed changes to the system operation. A base condition run can be performed followed by results generated from requested alternative operation. Various output tools are used with the evaluation that include RiverWare’s statistical package. Comparing results from base condition and proposed operational changes provide a means of evaluating these proposals. A brief overview of the RiverWare’s modeling approach for the Red River will be demonstrated.

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