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"Policy Options for Managing Waterfront Vulnerability to Flooding" by Betsy Blair
- 1. Managing Waterfront Vulnerability to Flooding: How can we adapt? Betsy Blair, NYSDEC Marine Habitat Protec9on/Hudson River NERR Kris9n Marcell, Hudson River Estuary Program/Cornell WRI NYS Department of Environmental Conservation
- 2. Waterfront revitaliza4on vs. Waterfront vulnerability NYS Department of Environmental Conservation
- 3. Can we build smarter? • Define vulnerable areas (now and future) • Design waterfronts to provide – Economic benefits – Environmental benefits – Safety NYS Department of Environmental Conservation
- 4. What are our vulnerabilities now and into the future? What What is the natural lifespan of assets do infrastructure? we want to conserve? NYS Department of Environmental Conservation
- 5. Considerations at the site level • Economic • Social • Visual • Political • Environmental • Funding/Administration • Technical NYS Department of Environmental Conservation
- 6. Potential Strategies • Protection: armoring or adding sand to the shoreline • Accommodation: elevation of land, structures or critical systems; designing to flood • Strategic Relocation: keeping or moving structures out of harm’s way NYS Department of Environmental Conservation
- 7. Protection: Armoring and beach nourishment NYS Department of Environmental Conservation
- 8. For good reason Infrastructure Oil terminals NYS Department of Environmental Conservation Cultural landmarks
- 9. Can we do better? Don’t do this if you don’t have to! NYS Department of Environmental Conservation
- 10. 10 Steps to better shore zones • Preserve physical • Tread lightly diversity • Don’t make dead • Resist tidiness ends • Don’t squeeze the • Don’t make it so zone hard • Prevent pollution • Give shores room to • Reduce wave move damage • Be careful about building NYS Department of Environmental Conservation
- 11. Scenic Hudson’s Esopus Meadows Preserve NYS Department of Environmental Conservation
- 12. Coxsackie Boat Launch Demonstration Site Eroding Shoreline NYS Department of Environmental Conservation
- 13. Dept of Urban Studies and Planning, School of Architecture + Planning at MIT http://bronx.mit.edu/meet-your-waterfront-plan “…the gabions are arranged in an undulating pattern along the riparian edge to disperse wave motion and slow water speeds.” NYS Department of Environmental Conservation
- 14. Accommodation: Elevating or designing to flood NYS Department of Environmental Conservation
- 15. Elevated structures with flood gates, Hamburg, Germany Wave attenuation, Brooklyn Bridge Park NYS Department of Environmental Conservation
- 16. Allow Room for Rivers Village of Tarrytown • Shoreline “eco-corridor” with swales and native grasses • www.scenichudson.org NYS Department of Environmental Conservation
- 17. Strategic Relocation: Keeping or moving structures out of harm’s way NYS Department of Environmental Conservation
- 18. Over the long term in many areas greenways and parks may be better uses of the shore than buildings. NYS Department of Environmental Conservation
- 19. Iona Island NYS Department of Environmental Conservation
- 20. Limit development in highest risk areas Town of Pleasant Valley – Floodplain Protection: Zoning code limits uses in 100 yr floodplain to uses minimally affected by high water Dobbs Ferry – http://pleasantvalley- ny.gov/ NYS Department of Environmental Conservation Saugerties
- 21. Don’t drown wetlands! Town of East Hampton – Examined sea level rise and storms in comprehensive plan – Studied changing wetland boundaries – Prohibits building of bulkheads that would block wetland movement. – 150’ setback and no build zones in high hazard floodplains – http://www.nyswaterfronts.com/LWRP/Town%20of %20East%20Hampton/default/ Town_of_East_Hampton_LWRP.htm NYS Department of Environmental Conservation
- 22. City of Hudson riverfront Present day, low tide NYS Department of Environmental Conservation
- 23. City of Hudson riverfront Simulation: Inundation -- high tide with 4 feet of sea level rise NYS Department of Environmental Conservation
- 24. City of Hudson riverfront Simulation: Armored protection at high tide with 4 feet of sea level rise NYS Department of Environmental Conservation
- 25. NYS Department of Environmental Conservation
- 26. City of Kingston waterfront Simulation: Armored protection with elevated sea level (low tide). NYS Department of Environmental Conservation
- 27. City of Kingston waterfront Simulation: Accommodation to elevated sea level (low tide), vegetated revetment, flood-proofed buildings NYS Department of Environmental Conservation
- 28. City of Kingston waterfront Simulation: Strategic retreat with elevated sea level (low tide) NYS Department of Environmental Conservation
- 29. Questions? Betsy Blair NYS DEC Hudson River NERR Phone: (845) 889-4745 x113 Email: bablair@gw.dec.state.ny.us NYS Department of Environmental Conservation