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Flood Prevention of Art Strategy After June 2006 Flood David - PowerPoint PPT Presentation

National Gallery of Art National Gallery Flood Prevention of Art Strategy After June 2006 Flood David Samec, P.E., CFM Chief of Facilities Management 1 Extent of Flooding Up the Hill Flood Flow Flood Flow NGA Located in Dashed Area


  1. National Gallery of Art National Gallery Flood Prevention of Art Strategy After June 2006 Flood David Samec, P.E., CFM Chief of Facilities Management 1

  2. Extent of Flooding “Up the Hill” Flood Flow Flood Flow NGA Located in Dashed Area 2

  3. NGA Flood Prevention Strategy Assess Areas of Highest Risk 2 6 4 3 1 5 7 3

  4. NGA Flood Prevention Strategy What to Use? (circa 2006) Water-filled cofferdams Water-absorbing gel bags 4

  5. NGA Flood Prevention Strategy Caches and Pre-Positioning 5

  6. NGA Flood Prevention Strategy Caches and Pre-Positioning 6

  7. Aqua Dam Increased Facility Entrance Elevations as Required for a Flood Event 7

  8. Modular Flood Barriers Used by DC Metro 9 th Street and Constitution Ave. 8

  9. NGA Flood Barrier Rehearsal 2017 • One person could put this together 9

  10. Vulnerabilities • If barriers fail, everything is vulnerable • Anything more than a 200-year storm event would cause catastrophic flooding • Constant concern about Constitution Avenue Storm Sewer backup into building floor drains 10

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