<a href="//commons.wikimedia.org/wiki/New_Orleans" title="New Orleans">New Orleans</a> after <a href="//commons.wikimedia.org/wiki/Hurricane_Katrina" title="Hurricane Katrina">Hurricane Katrina</a>:
<p>View of houses along Pratt Avenue whose backyards were along the <a href="//commons.wikimedia.org/wiki/London_Avenue_Canal" title="London Avenue Canal">London Avenue Canal</a> levee near the breech, as seen from atop temporary levee breech fill.
</p><p>Houses were severely damaged by the force of the water when the levee breeched, and were then long mostly submerged. 
</p>
Note the large amounts of silt deposited by the breech, and some still standing water.
<a href="//commons.wikimedia.org/wiki/User:Infrogmation" title="User:Infrogmation">Infrogmation</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>