@amazeifystore: The rock was "bone dry," but that was actually the ultimate warning sign. 🏗️⚠️ At the St. Francis Dam, the foundation was held together by gypsum that reacted to water like sugar. As the reservoir filled, it triggered a massive rise in geologic pore pressure—essentially acting like a hydraulic jack lifting the structure from the inside out. The concrete weight meant nothing once internal friction vanished. We focused on the strength of the concrete while the ground beneath it turned into a lubricant. Why do we still trust visual hardness over subsurface chemistry? 🤔 Follow to explore more forensic engineering. 🔍 #forensicengineering #civilengineering #stfrancisdam #engineeringdisaster #geology #geotech #construction #History #damfailure #structuralengineering #Science #engineering

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