The modeling effort consists of a three-tiered modeling
approach. Tier 1 consists of several small area models used to simulate flows,
and concentrations from specific pilot projects or localized areas of
study such as wetlands, swales, wet detention ponds and individual CSO basins.
Tier 2 consists of a simple pollutant loading model and a detailed sewer
system model which both simulate pollutant generation by subarea for
entire watershed. The Tier 3 models are the river models which simulate
instream flows and concentrations in the four main river branches based on
from the Tier 2 detailed sewer system models. For more information about
the modeling approach and an overview of the models used see the Modeling
Fact Sheet and the paper Comprehensive
Watershed Analysis Tools: the Rouge Project
- A Case Study.
are four examples of how these models have been applied.
The models developed continue to be used for various
other applications within the watershed, such as the
evaluation of instream DO impacts for additional
demonstration CSO control basins, and the evaluation
management alternatives on the Middle Rouge River.
Last Updated: 5/13/2004
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The Rouge River National Wet Weather Demonstration
Project is funded, in part, by the United States Environmental Protection
Agency (EPA) Grants #XP995743-01, -02, -03, -04, -05, -06, -07 and