<a href="https://en.wikipedia.org/wiki/Dredging" class="extiw" title="w:Dredging">Dredging</a> below <a rel="nofollow" class="external text" href="https://www.lrl.usace.army.mil/Missions/Civil-Works/Navigation/Locks-and-Dams/McAlpine-Locks-and-Dam/">McAlpine Locks</a>.
<p>Side-to-side motion of dredge is controlled by cables connected to anchors on either side of the dredged channel.
These anchors must be repositioned as the dredge moves upriver.
The anchors are connected to lift cables (for want of a better term) marked by white buoys.
"Buddy" waiting to hoist an anchor and move it upstream.
Beyond "Buddy" is part of pontoon-supported pipeline through which dredged material is pumped before being discharged downstream.
In right distance is New Albany Boat Club.
</p><p>Twin screw towboat "Buddy" (doc. # 630004, length 50 feet, breadth 20 feet, Caterpillar 3408 diesels, 730 hp)
This boat has a pair of <a href="https://en.wikipedia.org/wiki/Shear_legs" class="extiw" title="w:Shear legs">sheerlegs</a> and a winch at the bow, allowing it to hoist and move the anchors which enable the dredge to swing from side to side
Built in 1980 by <a rel="nofollow" class="external text" href="http://shipbuildinghistory.com/shipyards/small/serodino.htm">Serodino</a>, <a href="https://en.wikipedia.org/wiki/Guild,_Tennessee" class="extiw" title="w:Guild, Tennessee">Guild, Tennessee</a>
Owned by <a rel="nofollow" class="external text" href="http://www.luhr.com/">Luhr Bros.</a>, Columbia, Illinois
Still operating in 2018
.
<a href="https://en.wikipedia.org/wiki/Ohio_River" class="extiw" title="w:Ohio River">Ohio River</a> mile 607.
<a href="https://en.wikipedia.org/wiki/Louisville,_Kentucky" class="extiw" title="w:Louisville, Kentucky">Louisville, Kentucky</a>.
July 24, 2002.
file # a2g078b.
.
IMG_0298.
Canon PowerShot A40 digital camera.
</p>
JPEG quality 95.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/70020260@N04">William Alden</a> from Louisville, Kentucky, USA
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/bill_alden/29239585888/">a2g078b: Buddy waiting to move dredge anchor</a>