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| | The following are normal flow condition hydrologic analyses relating to dams: |
| | | * [[Normal Streamflow Conditions]] |
| '''Normal Streamflow Conditions'''
| | * [[Reservoir Drawdown]] |
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| “Water quality releases for downstream control have both qualitative and quantitative requirements. The quality aspects relate to Corp’s policy and objectives to meet state water quality standards, maintain present water quality where standards are exceeded, and maintain an acceptable tailwater habitats for aquatic life... One of the most important measures of quality is quantity. At many projects authorized for water quality control, a minimum flow at some downstream control point is the primary water quality objective. Other common objectives include temperature, dissolved oxygen, and turbidity targets at downstream locations”.<ref name="EM 1110-2-1420">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) | EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>
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| '''Reservoir Drawdown'''
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| “Where practicable, reservoir release facilities should be provided to lower the pool to a safe level adequate to correct conditions that might threaten the integrity f the dam”.<ref name="FEMA94">[[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94) | FEMA P-94 Federal Guidelines for Dam Safety: Selecting and Accommodating Inflow Design Floods for Dams, FEMA, 2013]]</ref>
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| “Low level outlets are provided to maintain downstream flows for all levels of the reservoirs operational pool. The outlets may also serve to empty the reservoir to permit inspection, to make needed repairs, or to maintain the upstream face of the dam or other structures normally inundated”.<ref name="EM 1110-2-1420" />
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| ==Examples==
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| ==Best Practices Resources==
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| {{Document Icon}} [[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420)]]
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| {{Document Icon}} [[Selecting and Accommodating Inflow Design Floods for Dams (FEMA P-94)]]
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| ==Trainings==
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