@amazeifystore: This mountain was actually a giant sponge. 🧽 The St. Francis Dam failure is a haunting reminder of what happens when geology is misunderstood. The paleoconglomerate rock looked solid as concrete, but once saturated, the water dissolved the very matrix holding it together. When the ground changes state, the math fails. It was a chemical betrayal of the entire design. Would you trust a dry sample for a project this size? 👇 #stfrancisdam #engineeringfailure #geology #civilengineering #sciencefacts #historytok #damfailure #geotechnicalengineering #engineeringhistory #infrastructure