ASDSO Dam Safety Toolbox

O&M of a Reservoir

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Lake Powell, the second largest reservoir in the United States by water capacity.

(Image Source: National Park Service)

Deposition of sediments in the reservoir is problematic as it reduces the reservoir’s potential storage capacity. These accumulated sediments can be removed in a variety of ways including sluicing through the bottom outlet of the dam (if one exists) and dredging.

“Existing reservoirs are routinely surveyed to determine sediment deposition and resulting loss of storage”.[1]

Best Practices Resources

Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420), USACE


Revision ID: 7320
Revision Date: 07/18/2023