Key Biscayne Spent $8M on a Flood Fix. Then It Voted It Down 7–0.

Key Biscayne is home to some of the most expensive real estate in Florida—with multimillion-dollar waterfront mansions and a $12.3 billion tax base. But sitting just a few feet above sea level, routine tidal flooding is taking over the streets even on sunny days. After spending $8 million on engineering plans and securing $76 million in state loans and grants for a centralized stormwater overhaul known as "The Big Dig," the island's village council voted 7–0 to kill the project entirely. In this video, we break down how Key Biscayne got here, why ordinary tides are submerging coastal roads, and what happens when one of America's wealthiest towns can't agree on how to keep its streets dry. ⏱️ Timestamps 0:00 – The $31M Mansion on a Flooding Street 1:35 – Built on Bay Sand: The History of Key Biscayne 3:33 – Why Roads Flood Without Any Rain 6:43 – The $100M Bond & Florida's Insurance Crisis 9:11 – The Rise and Fall of "The Big Dig" 11:14 – Walking Away from $76 Million 12:15 – What Key Biscayne Means for Coastal America 🔔 Subscribe to Mansions Destroyed for in-depth investigations into high-stakes real estate, coastal infrastructure, and the realities of living on the edge of the water. 💬 Join the discussion: Should coastal residents compromise on aesthetics to protect their infrastructure, or was walking away from the plan the right call? Let us know in the comments below. #KeyBiscayne #FloridaRealEstate #MansionsDestroyed #SeaLevelRise #Infrastructure #CoastalFlooding