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Preparing For The Rising Tide Designing with Water Preparing For The Rising Tide Published February 2013 Maps Bostons vulnerability to coastal flooding Encourages property owners in today and tomorrows flood zone to know


  1. Preparing For The Rising Tide Designing with Water

  2. Preparing For The Rising Tide • Published February 2013 • Maps Boston’s vulnerability to coastal flooding • Encourages property owners in today and tomorrow’s flood zone to know and decrease their risks

  3. Designing with Water • Describes Dutch innovative resilient design • Provides design principles and case studies of beautiful flood control strategies relevant to Boston • Both available for free at www.tbha.org

  4. Superstorm Sandy

  5. Rt.12 Outer Banks

  6. Casino Pier, Seaside Heights Photo: Reuters

  7. Lower Manhattan

  8. Breezy Point

  9. Boston’s Waterfront, October 29, 2012

  10. Why Coastal Flooding Happens • Storm surges and/or • “Wicked high tides” during full & new moons and/or • Sea level rise

  11. Boston New York Storm Surges

  12. Boston New York

  13. 100-, 500- and 1,000-year Surges New York City + Boston Harbor 12 Storm Surge (feet) 10 8 New York 6 City 4 Boston 2 Harbor 0 100 500 1000 Probability of Storm Surge (years)

  14. Tides

  15. Sea Level Rise • Used range of “likely” to “possible” estimated sea level rise for planning • 2050: 1-2 ft. increase • 2100: 3-6 ft. increase (US NCA, 2013) • Estimates keep going up, not down. Source: US National Climate Assessment, 2013

  16. Today’s High Tide + 2.5 ft.

  17. Today’s High Tide + 5.0 ft. Could flood Daily High Current Annual Tide by 2100 nearly 7% of 100-Year Flood by 2050 Boston Flood

  18. Today’s High Tide + 5.0 ft.

  19. What Floods at High Tide+5?

  20. Today’s High Tide + 7.5 ft. Could Flood Annual 100-Year Over 30% Flood by Flood around of Boston 2100 2050

  21. What Floods at High Tide + 7.5?

  22. Boston Living With Water Design Competition • Launched October 29 th at the ABX conference after free design charrette. • Seeks Living with Water design solutions for three real sites in Boston. • Cosponsored by City, BRA, BSA and TBHA. • www.BostonLivingwithWater.org

  23. Summary of Findings • Today’s 100 -year flood could be 2050’s annual flood and 2100’s high tide. • Boston will be different. It doesn’t have to be worse. • Preventing flood damage will cost money. Make it count by solving other problems at the same time.

  24. Thank You www.tbha.org jwormser@tbha.org 617-482-1722 x102

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