✈️ Portland’s airport is cool… but it's also slowly sinking. 😬 A new study found that parts of PDX are subsiding around 6.5mm per year — second-fastest among 15 major U.S. airports (right behind SFO). Over a decade, that could mean 3 inches of runway drop in some spots. Why? PDX sits on soft floodplain soils — think "smooshy" ground under solid pavement. 👀 But don’t panic: The Port of Portland says they’re monitoring closely and haven’t seen impacts. 📹 by Jes Burns/OPB ✂️ by Danika Sandoz/OPB