Water Management Modeling with HEC-ResSim


The Hydrologic Engineering Center’s Reservoir System Simulation (HEC-ResSim) is used to model the operations of one or more water reservoirs. This software has many applications, such as:

  • Simulation of reservoir operation for flood risk management.
  • Flow variations and planning of water supply.
  • Regulation plans of reservoirs.
  • Support for real-time decision making.

Also, HEC-ResSim can represent from small-scale reservoirs to complex systems comprising multiple reservoirs, rivers, diversions, etc. Complementary, the software can model single events or periods of events, which can be established through Time Steps.

The projects are created by using 3 modules (Watershed Setup, Reservoir Network and Simulation). This makes it possible to add different levels of detail and specifications. 

Once the simulation is over, the results can be visualized as tables or graphs.

Thanks to its versatility and precision, HEC-ResSim is positioned as the best alternative to study reservoir operation, and also as a research tool and a support for real-time decisions.

Download HEC-ResSIM for FREE from the software website:


Saul Montoya

Saul Montoya es Ingeniero Civil graduado de la Pontificia Universidad Católica del Perú en Lima con estudios de postgrado en Manejo e Ingeniería de Recursos Hídricos (Programa WAREM) de la Universidad de Stuttgart con mención en Ingeniería de Aguas Subterráneas y Hidroinformática.

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