Instream Flow, Water Resources, & Competing Water Uses
R2 provides comprehensive assessments of water requirements for aquatic resources, flow regulation, and competing water uses. R2 has extensive experience assisting clients with the need to balance flows for aquatic habitats with hydroelectric power generation, forestry, and other competing water uses. Through work on numerous hydro projects we have gained expertise with peaking projects, ramping rates, stranding potential, as well as the assessment of flow to enhance spawning habitat.
Types of services offered include:
Instream Flow Studies
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IFIM/PHABSIM modeling
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Hydraulic measurements using Acoustic Doppler Current Profiler
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R2 Cross evaluations
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Tennant and wetted perimeter measurement
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Development of flow recommendations for fish and aquatic habitats
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Development of channel flow recommendations for maintaining channel conveyance and valley and riparian forms/habitats
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Assessment of impacts of flow regulation on aquatic habitats
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Flow:Resource optimization studies
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One-, two-, and three-dimensional hydraulic modeling
Water Resource Studies
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Development of flow-sensitive model to evaluate effects on downstream fish mortality
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Stream temperature modeling
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Evaluation of flow regulation effects on water temperature regimes
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Assessment of thermal regime impacts to aquatic resources
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Watershed/hydrologic modeling
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Impact of variable flow conditions on macroinvertebrates
Competing Water Uses
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Development of water budgets to balance reservoir and instream flow needs
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Development of water rights for aquatic resources
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FERC documents including EIS, EA, Exhibit E, and 4(e) conditions

Project One: