Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance...

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Kari Servold Engineering a “Shore” Thing for Living Shoreline Projects that Require Nearshore Structures

Transcript of Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance...

Page 1: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Kari Servold

Engineering a “Shore” Thing for Living

Shoreline Projects that Require

Nearshore Structures

Page 2: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Coastal Engineers

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http://rayhigdon.com/my-7-question-interview-with-2-ninja-seo-internet-marketing-experts/#

Coastal Engineering:

A branch of civil

engineering pertaining to

the study of the action of

the seas on shorelines

and the design of

structures to protect

against this action.

-freedictonary.com

Page 3: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Shoreline protection alternatives

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http://www.habitat.noaa.gov/pdf/noaa_guidance_for_considering_the_use_of_living_shorelines_2015.pdf

Page 4: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

How to engineer a “shore”

thing?

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Servold 2015

Page 5: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

• To achieve, increase, or restore ecosystem

services or ecological improvements?

• To prevent or stop shoreline erosion or

recession?

• Retain sediment fill?

• Permit required it?

• Combination of one or more?

• None of the above?

Deciding you need structures?

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Nearshore Structures

Page 6: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

“Bubba-Shrimp” Phenomenon

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“You can barbecue it, boil it, broil it, bake it, sauté it…”

Oyster ….

Shells

Concrete

Rings

Bags

Cages

Balls

Domes

Piles

Pyramids

Castles

What materials will you use for

your structures?

Page 7: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

• Offshore breakwater

• Onshore (headland) breakwater

• Emergent or submerged breakwater

• Narrow-crested or broad-crested

• Segmented breakwater field

• Sill

• Reef breakwater

How are you applying nearshore

structures?

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Page 8: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Nearshore wave-structure

processes/interactions in a nutshell

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Coastal Engineering Manual (2002): Definition Schematic for nearshore breakwaters

Page 9: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Coastal engineering design guidance for

reef breakwaters

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Figure Credit: Coastal Engineering Manual, 2002

Wave Transmission Wave Diffraction

Wave Reflection Wave Refraction

Wave Overtopping Wave Setup

Sediment Transport Shoreline Response

What do we really know about the proprietary

technologies in the restoration market today???

Page 10: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

What, where, and how much structure will

you need?

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NOT DRAWN TO SCALEWebb 2013b

Page 11: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Engineering & ecological unknowns?

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Page 12: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Difference between success and failure

when nearshore structures are used?

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Variableresponses?

Page 13: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Optimizing your project?

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Effi

cien

cyHabitat & Ecology

Vegetation (SAV & Marsh)

& Species

ShorelineProtection

Structure Size

$$$

Webb 2013

Page 14: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Expanding & improving our knowledge?

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Modeling MonitoringResearch

MORE:

Page 15: Shoreline Projects that Require Nearshore Structures€¦ · Coastal engineering design guidance for reef breakwaters 9 Figure Credit: Coastal Engineering Manual, 2002 Wave Transmission

Is there a

“shore” thing

when it comes

to designing

living shoreline

projects?

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Special Thanks to my co-authors!

Bret WebbScott DouglassCheryl Ulrich