Underwater Construction: Difference between revisions
(Created page with "<!--Example Page --> <div style= "text-align:center;"> <!-- Add message here --> ''Message: Divers may be required to complete construction.'' </div> ----</br> <!-- Add body paragraphs here --> At times, rehabilitating existing structures can present very difficult access and construction environments. Performing construction on underwater structures within a reservoir or outlet may be required. The Willow Creek dam is an earthen dam constructed in 1966 that impounds a...") |
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Revision as of 21:00, 15 September 2022
Message: Divers may be required to complete construction.
At times, rehabilitating existing structures can present very difficult access and construction environments. Performing construction on underwater structures within a reservoir or outlet may be required.
The Willow Creek dam is an earthen dam constructed in 1966 that impounds a tributary of the Colorado River. A project was completed to rehabilitate the existing outlet works that included the following tasks:
- Install 20' pipe segment with blind flange.
- Reline existing outlet works with steel pipe and replace 2 existing valves in the dry.
- Add new hydraulically operated gate valve.
- Install trash rack and run hydraulic lines.
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Project Site
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Dive platform
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Pipe segment with flange
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Lower pipe into place
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First rigging move
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Pipe moved to opening
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Pipe inserted into opening
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Pipe rigged to pull into the existing outlet works
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Pipe pulled into place
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Pipe in final position
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: 3224
Revision Date: 09/15/2022