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Message: <blockquote data-quote="tikkalover" data-source="post: 495678" data-attributes="member: 600">How Water Moves Between the Lakes<ul> <li data-xf-list-type="ul"><ul> <li data-xf-list-type="ul">Pumping Up (Sakakawea to Audubon): Water normally moves the opposite way—from Lake Sakakawea into Lake Audubon—using the <a href="https://www.nwo.usace.army.mil/Missions/Civil-Works/Planning/Planning-Projects/Snake-Creek-DSMS/" target="_blank">Snake Creek Pumping Plant</a> to maintain summer target levels for the McClusky Canal. [<a href="https://garrisondiv.org/about-garrison-diversion/facilities/" target="_blank">1</a>, <a href="https://www.nwo.usace.army.mil/Missions/Civil-Works/Planning/Planning-Projects/Snake-Creek-DSMS/" target="_blank">2</a>]</li> </ul><ul> <li data-xf-list-type="ul">Releasing Down (Audubon to Sakakawea): During routine fall drawdowns or specific dam safety management (such as controlling extreme elevation differences during severe droughts to protect the highway/railroad embankment), water is let out of Lake Audubon and flows back into Lake Sakakawea via gravity through the embankment's low-level concrete control conduits. [<a href="https://www.nwo.usace.army.mil/Missions/Civil-Works/Planning/Planning-Projects/Snake-Creek-DSMS/" target="_blank">1</a>]</li> </ul>Why There Are No Screens<ul> <li data-xf-list-type="ul">Heavy Debris Risk: Standard fish screens or fine mesh would easily plug up with aquatic vegetation, rocks, and debris carried by the water, causing dangerous pressure imbalances or blockages inside the embankment.</li> <li data-xf-list-type="ul">Biota Control is Handled Elsewhere: Because Lake Audubon and Lake Sakakawea are part of the same Missouri River system and sit right next to each other, free movement of native fish and organisms between them is not restricted by regulatory biota-barrier mandates. Instead, advanced biota screening and water treatment are handled at dedicated facilities downstream, such as the Northwest Area Water Supply (NAWS) treatment plant, to prevent the transfer of invasive species to completely different river basins (like the Hudson Bay basin). [<a href="https://www.nwo.usace.army.mil/Missions/Civil-Works/Planning/Planning-Projects/Snake-Creek-DSMS/" target="_blank">1</a>]</li> <li data-xf-list-type="ul">Basic Trash Racks Only: The control structure uses heavy, wide-spaced metal steel bars (known as trash racks) at the intake. These are designed solely to prevent large logs, heavy debris, or ice chunks from entering the conduit and damaging the mechanical slide gates. Fish can pass right through them.</li> </ul></li> </ul></blockquote>

Verification: What is the most common fish caught on this site?

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