acceptedAI Generatedinfrastructure Miami Beach Living Shorelines: Replace Seawalls with Hybrid Nature-Based Flood Defense
Replace Miami Beach's 55 miles of concrete seawalls with hybrid living shorelines combining mangroves, oyster reefs, and reinforced limestone. Living shorelines absorb wave energy, reduce flooding, improve water quality, and provide habitat. Cost: $20 million per mile vs $15 million for concrete, but 50% lower maintenance over 20 years. Pilot on 3 miles of Indian Creek Drive, already chronically flooded. Includes permeable pavement on adjacent roads and raised seawall base with mangrove planting on bay side. Community maintenance program trains residents in shoreline stewardship. Also includes a rising groundwater management plan with neighborhood-scale permeable infrastructure, retention areas in parks, and building code updates requiring elevation for new construction.
