ASDSO Dam Safety Toolbox

Siphons

From ASDSO Dam Safety Toolbox
Revision as of 18:41, 27 September 2022 by Grichards (talk | contribs)
Jump to: navigation, search



Many older dams were not constructed with a means of draining the reservoir. Lowering the reservoir may be needed for temporary construction, for emergency response, or when regular releases aren't needed. Siphons can be a low-cost means of providing a reservoir outlet if one does not exist. The key operational parameters are: (1) the required hydraulic lift cannot exceed the effective local atmospheric pressure adjusted for vapor pressure and frictional losses; (2) the discharge point of the siphon must be lower in elevation than the body of water to be siphoned; (3) the pipe or hose used for the siphon must be designed to operate at less than atmospheric pressures; (4) siphon outlets should only be used when there are no other feasible options; and (5) siphon outlets are difficult to prime.

Examples

Get answers to some of the common questions about siphons

Trainings

On-Demand Webinar: Design of Siphon Systems


Citations:



Revision ID: 3796
Revision Date: 09/27/2022