Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S....
-
Upload
marlene-lloyd -
Category
Documents
-
view
215 -
download
0
Transcript of Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S....
![Page 1: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/1.jpg)
Maintaining Coastal Infrastructure in Maintaining Coastal Infrastructure in Massachusetts: Approaches for Massachusetts: Approaches for
Shoreline ManagementShoreline Management
John S. Ramsey, P.E.John S. Ramsey, P.E.Applied Coastal Research and Engineering, Inc.Applied Coastal Research and Engineering, Inc.
![Page 2: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/2.jpg)
How do manage our coastline?How do manage our coastline?
The influence of 380+ years of coastal development The influence of 380+ years of coastal development
![Page 3: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/3.jpg)
What Makes the Massachusetts Shoreline Unique?What Makes the Massachusetts Shoreline Unique?
![Page 4: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/4.jpg)
What Makes the Massachusetts Shoreline Unique?What Makes the Massachusetts Shoreline Unique?
![Page 5: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/5.jpg)
Highest land Highest land feature at feature at
Winthrop Beach Winthrop Beach is the seawallis the seawall
![Page 6: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/6.jpg)
What Makes the Massachusetts Shoreline Unique?What Makes the Massachusetts Shoreline Unique?
![Page 7: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/7.jpg)
What Makes the Massachusetts Shoreline Unique?What Makes the Massachusetts Shoreline Unique?Historic Shoreline ArmoringHistoric Shoreline Armoring
![Page 8: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/8.jpg)
What Makes the Massachusetts Shoreline Unique?What Makes the Massachusetts Shoreline Unique?Historic Shoreline ArmoringHistoric Shoreline Armoring
![Page 9: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/9.jpg)
What Makes the Massachusetts Shoreline Unique?What Makes the Massachusetts Shoreline Unique?
![Page 10: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/10.jpg)
What Makes the Massachusetts Shoreline Unique?What Makes the Massachusetts Shoreline Unique?Influence of StormsInfluence of Storms
![Page 11: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/11.jpg)
How do these factors influence long-term stability?How do these factors influence long-term stability?
Long-term Lowering of Beach Long-term Lowering of Beach
![Page 12: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/12.jpg)
How do these factors influence structure design?How do these factors influence structure design?
Undersized Armor Undersized Armor
![Page 13: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/13.jpg)
The Result… The Result… Emergency Emergency
RepairsRepairs
![Page 14: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/14.jpg)
But this solution is only a “band-aid”But this solution is only a “band-aid”
![Page 15: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/15.jpg)
Putting It All Together… Think Regionally Putting It All Together… Think Regionally
Understanding local coastal processes is criticalUnderstanding local coastal processes is critical Establish alternatives analysis criteria Establish alternatives analysis criteria Expectations need to be reasonableExpectations need to be reasonable Economic evaluation should consider design lifeEconomic evaluation should consider design life Realistic evaluation of environmental impacts Realistic evaluation of environmental impacts
![Page 16: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/16.jpg)
Project GoalsProject Goals
““Solution to the Problem”Solution to the Problem”
• Project design appropriate for siteProject design appropriate for site define project purpose and needdefine project purpose and need define design expectationsdefine design expectations anticipate environmental constraintsanticipate environmental constraints evaluate short- and long-term economicsevaluate short- and long-term economics
![Page 17: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/17.jpg)
How do these factors influence design?How do these factors influence design?
Massachusetts Design Example - Point Allerton Massachusetts Design Example - Point Allerton
Point Point AllertonAllerton
Open Open AtlanticAtlantic
![Page 18: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/18.jpg)
How do these factors influence design?How do these factors influence design?Massachusetts Design Example - Point Allerton Massachusetts Design Example - Point Allerton
![Page 19: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/19.jpg)
How do these factors influence design?How do these factors influence design?
Massachusetts Design Example - Point Allerton Massachusetts Design Example - Point Allerton
![Page 20: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/20.jpg)
How do these factors influence design?How do these factors influence design?
Increased Overtopping Rates Increased Overtopping Rates
![Page 21: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/21.jpg)
How do these factors influence design?How do these factors influence design?
Massachusetts Design Example - Point Allerton Massachusetts Design Example - Point Allerton
WIS Station 52WIS Station 52
![Page 22: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/22.jpg)
100-Year Significant Wave Heights at Seawall Toe
Existing Profile 9.1 ft
2.5 Feet of Scour 10.4 ft
5.0 Feet of Scour 11.8 ft
How do these factors influence design?How do these factors influence design?Massachusetts Design Example - Point Allerton Massachusetts Design Example - Point Allerton
Median Design Stone Weight
Existing Profile 12.5 tons
2.5 Feet of Scour 16.4 tons
5.0 Feet of Scour 20.9 tons
![Page 23: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/23.jpg)
How do these factors influence design?How do these factors influence design?
Massachusetts Design Example - Point Allerton Massachusetts Design Example - Point Allerton
![Page 24: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/24.jpg)
How do these factors influence design?How do these factors influence design?
Massachusetts Design Example - Point Allerton Massachusetts Design Example - Point Allerton
![Page 25: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/25.jpg)
Re-Establishing Regional Sediment SupplyRe-Establishing Regional Sediment SupplyMassachusetts Example – Revere Beach Massachusetts Example – Revere Beach
![Page 26: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/26.jpg)
Re-Establishing Regional Sediment SupplyRe-Establishing Regional Sediment SupplyMassachusetts Example – Winthrop Beach Massachusetts Example – Winthrop Beach
Pre-NourishmentPre-Nourishment
Post-NourishmentPost-Nourishment
![Page 27: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/27.jpg)
How Are Shorelines Managed Elsewhere?How Are Shorelines Managed Elsewhere?
U.S. East U.S. East CoastCoast
New JerseyNew Jersey
![Page 28: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/28.jpg)
Other IssuesOther IssuesDefinition LSCSF Based on FEMA Definition LSCSF Based on FEMA
![Page 29: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/29.jpg)
Other IssuesOther IssuesDefinition LSCSF Based on FEMA Definition LSCSF Based on FEMA
![Page 30: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/30.jpg)
Other IssuesOther IssuesChelsea Example – Preliminary FIS MapsChelsea Example – Preliminary FIS Maps
![Page 31: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/31.jpg)
Other IssuesOther IssuesRegional Relative Sea-Level Rise Regional Relative Sea-Level Rise
Massachusetts Subsidence -0.84 mm/yearMassachusetts Subsidence -0.84 mm/year
![Page 32: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/32.jpg)
Other IssuesOther IssuesOgunquit– Flooding ExampleOgunquit– Flooding Example
![Page 33: Maintaining Coastal Infrastructure in Massachusetts: Approaches for Shoreline Management John S. Ramsey, P.E. Applied Coastal Research and Engineering,](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697bff71a28abf838cbed32/html5/thumbnails/33.jpg)
Questions?Questions?
Applied Coastal Research and Applied Coastal Research and Engineering, Inc.Engineering, Inc.