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

Kari Servold

Engineering a “Shore” Thing for Living

Shoreline Projects that Require

Nearshore Structures

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

Shoreline protection alternatives

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

How to engineer a “shore”

thing?

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Servold 2015

• 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

“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?

• 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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Nearshore wave-structure

processes/interactions in a nutshell

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

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???

What, where, and how much structure will

you need?

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NOT DRAWN TO SCALEWebb 2013b

Engineering & ecological unknowns?

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Difference between success and failure

when nearshore structures are used?

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Variableresponses?

Optimizing your project?

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Effi

cien

cyHabitat & Ecology

Vegetation (SAV & Marsh)

& Species

ShorelineProtection

Structure Size

$$$

Webb 2013

Expanding & improving our knowledge?

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Modeling MonitoringResearch

MORE:

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