Looking ENE from just above 600-foot lock at <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>Stacks of <a href="https://en.wikipedia.org/wiki/Rust" class="extiw" title="w:Rust">rusty</a> <a rel="nofollow" class="external text" href="http://www.skylinesteel.com/globalnav/products/steel-sheet-piling/flat-web">sheet piling</a> used to build cylindrical cells for <a rel="nofollow" class="external text" href="https://bestengineeringprojects.com/cellular-coffer-dams-types-of-cellular-coffer-dams/">cofferdam</a>.
The edges of the sheet piles have grooves that interlock with the adjacent piles, thus forming a continuous wall.
Crane at left.
"Valvoline" in distance.
.
<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>.
March 25, 2001.
file # a1c056.
.
</p>
Scanned from 6x9 cm Fuji NPS color negative, taken with Fuji rangefinder.
<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/41500231250/">a1c056: Flat web sheet piles at McAlpine Locks</a>