ASDSO Dam Safety Toolbox

Abandonment Example 1

From ASDSO Dam Safety Toolbox
Revision as of 17:31, 24 June 2022 by Camrenbt (talk | contribs) (Created page with "<!--Example Page --> <div style= "text-align:center;"> <!-- Add message here --> ''Message: It may not be possible to rehabilitate severely deteriorated pipes.'' </div> ----</br> <!-- Add body paragraphs here --> In this Alaska dam, the principal outlet conduit was in need of rehabilitation. The pipe was a good candidate for sliplining and the condition of the pipe allowed for a successful rehabilitation. However, the dam also had an auxiliary overflow conduit that was...")
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Message: It may not be possible to rehabilitate severely deteriorated pipes.


In this Alaska dam, the principal outlet conduit was in need of rehabilitation. The pipe was a good candidate for sliplining and the condition of the pipe allowed for a successful rehabilitation.

However, the dam also had an auxiliary overflow conduit that was in need of rehabilitation. As shown in the images below, the pipe was in poor condition and sliplining was not an option. Ultimately, the auxiliary overflow conduit could not be rehabilitated and the pipe was abandoned in place using a cellular grout.

  • Auxiliary overflow culvert has collapsed.

    Auxiliary overflow culvert has collapsed.

  • Closer image of collapsed culvert.

    Closer image of collapsed culvert.

  • Section of culvert is filled with debris.

    Section of culvert is filled with debris.

  • Debris causing standing water.

    Debris causing standing water.

  • Abandoned auxiliary outlet at upstream face of dam.

    Abandoned auxiliary outlet at upstream face of dam.

  • Abandoned auxiliay outlet at downstream face of dam.

    Abandoned auxiliay outlet at downstream face of dam.


Revision ID: 1448
Revision Date: 06/24/2022

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