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Instream Flow Incremental Methodology (IFIM)


Tool Website:


Framework to assess different flow/project operation scenarios and resulting effects to physical, biological, and chemical attributes of water. IFIM is meant to be implemented in five sequential phases: problem identification, study planning, study implementation, alternatives analysis and problem resolution.

Geographic Location

Not region specific


Inputs depend on other methods used under scope of IFIM (eg SNTEMP, PHABISM, etc.)


Output depends on method employed to assess various alternative water management scenarios

Linkage to Other Models

Level of Effort

The level of effort and expertise required depends on the complexity of the project case and setting. Many of the models employed require training and experience to develop and interpret the results.

Basin Scale Opportunity Assesment