Merchant <a href="//commons.wikimedia.org/wiki/Ship" title="Ship">ships</a> on the <a href="//commons.wikimedia.org/wiki/Rhine" title="Rhine">Rhine</a> at <a href="//commons.wikimedia.org/wiki/Karlsruhe" title="Karlsruhe">Karlsruhe</a>. This part of the <a href="https://en.wikipedia.org/wiki/Upper_Rhine" class="extiw" title="en:Upper Rhine">Upper Rhine</a> war straightened by <a href="https://en.wikipedia.org/wiki/Johann_Gottfried_Tulla" class="extiw" title="en:Johann Gottfried Tulla">Tulla</a>, but never regulated by means of <a href="//commons.wikimedia.org/wiki/Dam" title="Dam">dams</a>.
<a href="//commons.wikimedia.org/wiki/User:Ikar.us" title="User:Ikar.us">Ikar.us</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Ikar.us" title="User talk:Ikar.us"><span class="signature-talk">talk</span></a>)
CC BY 2.0 de
<a href="https://ka.stadtwiki.net/Bild:SchiffeMaxau.jpg" class="extiw" title="karlsruhe:Bild:SchiffeMaxau.jpg">Karlsruhe:Bild:SchiffeMaxau.jpg</a>