ASDSO Dam Safety Toolbox

Reservoir Drawdown: Difference between revisions

From ASDSO Dam Safety Toolbox
Jump to: navigation, search
No edit summary
No edit summary
Line 1: Line 1:
__NOTOC__
__NOTOC__
[[Category:Normal Flow]]
----
----
<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
“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 of 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>
“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 of 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>


“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">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) | EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>
“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">[[Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) | EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs, USACE, 1997]]</ref>


==Examples==
==Examples==

Revision as of 05:01, 18 November 2022


“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 of the dam”.[1]

“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”.[2]

Examples

Learn about the important of having an operable reservoir drain at DamFailures.org

Best Practices Resources

Design Standards No. 14: Appurtenant Structures for Dams (Ch. 4: General Outlet Works Design Considerations) (Bureau of Reclamation)

Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) (U.S. Army Corps of Engineers)

Selecting and Accommodating Inflow Design Floods for Dams (Federal Emergency Management Agency)


Citations:


Revision ID: 4445
Revision Date: 11/18/2022