Abandonment
From ASDSO Dam Safety Toolbox
Abandonment is another alternative to replacing or rehabilitating a conduit. Abandonment is typically used when a pipe is too deteriorated to rehabilitate and the improvements to the dam do not require replacing the conduit. Abandoning a pipe can cost significantly less than removing a pipe and does not require disturbing the embankment of a dam. A common practice for abandoning pipes is to use a cellular concrete grout to fill the existing conduit and any voids surrounding the conduit.
Note: The content on this page was originally created as part of DamOutletWorks.org (DOWL, 2018). It has subsequently been updated and reformatted as part of the Dam Safety Toolbox.
Revision ID: 3181
Revision Date: 09/15/2022