Looking N from just above 600-foot lock at McAlpine Locks.
<p>Struts and rails for "slide rail" <a rel="nofollow" class="external text" href="https://theconstructor.org/construction/proprietary-trench-support-systems-construction/20502/">trench support system</a>.
Hyundai 250 LC-3 <a href="https://en.wikipedia.org/wiki/excavator" class="extiw" title="w:excavator">excavator</a>.
<a href="https://en.wikipedia.org/wiki/Populus_deltoides" class="extiw" title="w:Populus deltoides">Cottonwoods</a>.
.
<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>.
Mar. 10, 2001.
file # a1c019.
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</p>
6x9 cm E-6 transparency, taken with Fuji GW690 II (90 mm lens) or Fuji GSW690 III (65 mm lens).
<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/28848366108/">a1c019: Trench support components and excavator at McAlpine Locks, Louisville</a>