Preparing For The Rising Tide Designing with Water Preparing For - - PowerPoint PPT Presentation
Preparing For The Rising Tide Designing with Water Preparing For - - PowerPoint PPT Presentation
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
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
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
Superstorm Sandy
Rt.12 Outer Banks
Photo: Reuters
Casino Pier, Seaside Heights
Lower Manhattan
Breezy Point
Boston’s Waterfront, October 29, 2012
Why Coastal Flooding Happens
- Storm surges and/or
- “Wicked high tides” during full
& new moons and/or
- Sea level rise
Boston New York
Storm Surges
Boston New York
2 4 6 8 10 12 100 500 1000 Storm Surge (feet) Probability of Storm Surge (years)
100-, 500- and 1,000-year Surges New York City + Boston Harbor
New York City Boston Harbor
Tides
- Used range of “likely” to
“possible” estimated sea level rise for planning
- 2050: 1-2 ft. increase
- 2100: 3-6 ft. increase
- Estimates keep going up,
not down.
Sea Level Rise
(US NCA, 2013) Source: US National Climate Assessment, 2013
Today’s High Tide + 2.5 ft.
Could flood nearly 7% of Boston Current 100-Year Flood Annual Flood by 2050 Daily High Tide by 2100
Today’s High Tide + 5.0 ft.
Today’s High Tide + 5.0 ft.
What Floods at High Tide+5?
Could Flood Over 30%
- f Boston
100-Year Flood around 2050 Annual Flood by 2100
Today’s High Tide + 7.5 ft.
What Floods at High Tide + 7.5?
Boston Living With Water Design Competition
- Launched October 29th 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
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.