Tag Archives: Shoreline Armoring

Army Corps’ proposal for sand dunes in newest plan brings questions about cost, feasibility


Coastal restoration, living shorelines. Photograph: © SAF — Coastal Care

Excerpts;

A $32 billion plan for a coastal barrier system to protect the Houston-Galveston region, including 14-foot-high dune fields is seen as the latest innovation designed for Texas to engineer its way out of an existential crisis: a coastline gradually vanishing and increasingly vulnerable to massive storm surges and sea level rise…

Read Full Article; The Houston Chronicle (10-16-2019)

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.

A softer approach, living shorelines as an alternative to a hardened coast; PortCity (05-12-2018)

NOAA Study Finds Marshes, Reefs, Beaches Can Enhance Coastal Resilience, NOAA (04-29-2015)

NOAA study finds ‘living shorelines’ can lessen climate change’s effects, NOAA (12-22-2015)

Living Shorelines: Better Than Bulkheads, Coastal Review Online (02-08-2016)
More than 14,000 miles – 14 percent of continental U.S. coastline — has been armored with hardened structures. Hardened structures cause elevated rates of erosion on the shoreward side of the

Coastal Hazards & Targeted Acquisitions: A Reasonable Shoreline Management Alternative: North Topsail Beach, North Carolina Case Study; by the Western Carolina University Program for the Study of Developed Shorelines, July 1, 2019

Judge blocks exclusive, gated community from putting tons of rocks on public beach

PSDS
Photo source: PSDS.
“Terminal groins are shore-perpendicular structures built in attempt to slow erosion. When a groin works as intended, sand moving along the beach in the so-called downdrift direction is trapped on the updrift side of the groin, causing a sand deficit and increasing erosion rates on the downdrift side. This well-documented and unquestioned impact is widely cited in the engineering and geologic literature.” —Rob Young, Director of the Program for the Study of Developed Shorelines (PSDS) at Western Carolina University

Excerpts;

Residents of an exclusive gated community who want to put tons of boulders on a public beach lost a court battle this week that could delay plans to protect their homes from rising seas and coastal erosion.

In a ruling Wednesday, an administrative law judge blocked Debordieu property owners from installing rock groins that they say will stabilize the eroding beach in Georgetown County.

This ruling comes as battles simmer in South Carolina over how to deal with the effects of global warming and rising sea levels…

Read Full Article; The State (08-29-2019)

Terminal Groins Don’t Stop Erosion; Coastal Review (05-03-2016)

The Negative Impacts Of Groins, (02-12-2009)
The negative impact of groins on downdrift shorelines is well understood. When a groin works as intended, sand moving along the beach in the so-called downdrift direction is trapped on the updrift side of the groin, causing a sand deficit and increasing erosion rates on the downdrift side. This well-documented and unquestioned impact is widely cited in the engineering and geologic literature.

A Fiscal Analysis of Shifting Inlets and Terminal Groins in North Carolina, By Rob Young Director of the Program for the Study of Developed Shorelines at Western Carolina University (01-28-2011)
The debate about terminal groins, shore-perpendicular structures built at inlets in attempt to slow erosion, is worth keeping an eye on, whether you live in western North Carolina or in a coastal community, because it could cost you and our state a pretty penny…

Post Sandy Coastal Engineering Atrocity at Village of Southampton, In Pictures, By Rob Young; (03-24-2013)
An example of brute force coastal protection at its worst: on the beach, at the village of Southampton…

Living Shorelines: Better Than Bulkheads, Coastal Review Online (02-08-2016)
More than 14,000 miles – 14 percent of continental U.S. coastline — has been armored with hardened structures. Hardened structures cause elevated rates of erosion on the shoreward side of the structure…

“Engineering away our natural defenses: An analysis of shoreline hardening in the US,” A Study by By Rachel K. Pittman, ResearchGate (08-08-2015)
Rapid coastal population growth and development are primary drivers of marine habitat degradation. Although shoreline hardening, a byproduct of development, can accelerate erosion and loss of beaches and tidal wetlands, it is a common practice globally. 22,842 km of continental U.S. shoreline, 14% of the total, has been hardened…

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.

“North Carolina: The Beaches Are Moving,” A Video featuring Orrin Pilkey, PhD
World famous coastal geologist Orrin H. Pilkey takes us to the beach and explains why erosion has become a problem…

Coastal Hazards & Targeted Acquisitions: A Reasonable Shoreline Management Alternative: North Topsail Beach, North Carolina Case Study; By The Western Carolina University Program for the Study of Developed Shorelines (07-01-2019)
This study is the first of several case studies to be released by the Program for the Study of Developed Shorelines examining the feasibility and economics of targeted acquisition strategies in oceanfront, resort communities. Buyouts of vulnerable properties have become an increasingly popular tool for reducing future exposure in flood-prone communities across the U.S…

Can 475 ‘sand cubes’ protect Capo Beach, CA from further erosion?


Coastal erosion, California. Photograph: © SAF — Coastal Care

Excerpts;

An estimated 475 sand cubes — 3-by-3-foot white plastic bags filled with sand — were being stacked next to one another along the eroding Capo Beach, CA where strong waves, high tides and a rising sea level have battered the area for years.

It will take about 20 days to install the beach buffers in an attempt to save what’s left of the small stretch of Dana Point coast…

Read Full Article; OC Register (04-04-2019)

Blowing In The Wind? Spending Millions On Disappearing San Diego Beach Sand; KPBS (02-05-2016)
All up and down the San Diego coast, sand, particularly in North County, has disappeared from the beaches. A radio interview of Gary Griggs, Director, Institute of Marine Sciences, UC Santa Cruz, on KPBS News…

The only answer to rising seas is to retreat; By Orrin H. Pilkey & Keith C. Pilkey; The News & Observer (10-18-2017)
Except for the timing, there is no controversy among scientists regarding sea level rise. Defending the coast and holding the shoreline in place ultimately will be futile. With a three-foot or a six-foot sea level rise, we will retreat, probably beginning within the next 50 years…

California prepares policy for coastal ‘retreat’; E & E News (12-07-2018)
Oceanfront homes could be demolished along California’s coastline under a groundbreaking proposal to preserve the state’s made-for-movies beaches before they’re destroyed by rising seawater. The California Coastal Commission plans to release guidance early next year for dealing with sea-level rise in residential areas…

Del Mar takes another look at rising sea level and unpopular ‘planned retreat’, San Diego Union Tribune (05-20-2018)
The California Coastal Commission requires all coastal cities to have a sea-rise adaptation plan, and to include planned retreat as part of their strategy…

Coastal policy needs dose of reality; Op Ed by Orrin Pilkey; Star News Online (02-02-2017)

Let’s end war with ocean, Op-Ed by Orrin H. Pilkey (04-2017)
The immediate future most certainly holds more miles of sandbags, resulting in more narrowed and ugly beaches.But this trend can be halted and reversed. Now is the time to make peace with the ocean.The time is now to stop sandbagging, both physically with no more shore-hardening structures, and politically with no more exceptions to the intent of the rules, no more undermining existing legislation, and a return to enforcement…

Shore fix in Cane unlikely to last, experts say, BVI


Coastal development and erosion. Photograph: © SAF — Coastal Care

Excerpts;

About a month ago, excavations began along the beach in the north end of Cane Garden Bay as part of a government project designed to protect a shoreline that slips further into the sea with each heavy swell.

But two United States experts told the Beacon that the method being used — stone-filled wire cages known as gabion baskets — probably won’t last long…

Read Full Article; The Beacon, British Virgin Island (03-12-2019)

New walls aim to hold back rising seas off Tanzania


Seawall and beach erosion. Photograph: © SAF — Coastal Care

Excerpts;

Coastal erosion and flooding threaten Dar es Salaam, one of Africa’s fastest-growing cities…

Read Full Article; Scientific American (09-04-2018)

“Seawalls Kill Beaches,” Open Letters by Warner Chabot And Rob Young, (10-03-2014)

Muddy waters: Exploring mangrove governance in Tanzania; Landscape News (08-16-2018)

An Assessment of the Impact of Sand Mining: Unguja, Zanzibar, Tanzania; (SIT Graduate Institute/SIT Study Abroad (05-06-2015)
In mainland Tanzania, in comparison to Zanzibar, sand mining is done mainly along the coast and in river beds. This does a great deal of damage because it destabilizes the river banks and may collapse any bridges along them. On the contrary, mining in Zanzibar is generally done on the coastal beaches or in the hinterland areas that are richer in available sand…

Holden Beach Says ‘No’ to Terminal Groin, NC

PSDS
Photo source: PSDS.
“Terminal groins are shore-perpendicular structures built in attempt to slow erosion. When a groin works as intended, sand moving along the beach in the so-called downdrift direction is trapped on the updrift side of the groin, causing a sand deficit and increasing erosion rates on the downdrift side. This well-documented and unquestioned impact is widely cited in the engineering and geologic literature.” —Rob Young, Director of the Program for the Study of Developed Shorelines (PSDS) at Western Carolina University

Excerpts;

Holden Beach commissioners are withdrawing the town’s permit application to build a terminal groin at the east end of the barrier island.

Terminal groins are wall-like structures built perpendicular to the shore at inlets to contain sand in areas of high erosion, like that of beaches at inlets…

Read Full Article; Coastal Review (04-19-2018)

Terminal Groins Don’t Stop Erosion; Coastal Review (05-03-2016)

The Negative Impacts Of Groins, (02-12-2009)
The negative impact of groins on downdrift shorelines is well understood. When a groin works as intended, sand moving along the beach in the so-called downdrift direction is trapped on the updrift side of the groin, causing a sand deficit and increasing erosion rates on the downdrift side. This well-documented and unquestioned impact is widely cited in the engineering and geologic literature.

A Fiscal Analysis of Shifting Inlets and Terminal Groins in North Carolina, By Rob Young Director of the Program for the Study of Developed Shorelines at Western Carolina University (01-28-2011)
The debate about terminal groins, shore-perpendicular structures built at inlets in attempt to slow erosion, is worth keeping an eye on, whether you live in western North Carolina or in a coastal community, because it could cost you and our state a pretty penny…

Living Shorelines: Better Than Bulkheads, Coastal Review Online (02-08-2016)
More than 14,000 miles – 14 percent of continental U.S. coastline — has been armored with hardened structures. Hardened structures cause elevated rates of erosion on the shoreward side of the structure…

“Engineering away our natural defenses: An analysis of shoreline hardening in the US,” A Study by By Rachel K. Pittman, ResearchGate (08-08-2015)
Rapid coastal population growth and development are primary drivers of marine habitat degradation. Although shoreline hardening, a byproduct of development, can accelerate erosion and loss of beaches and tidal wetlands, it is a common practice globally. 22,842 km of continental U.S. shoreline, 14% of the total, has been hardened…

Coastal erosion needs our attention, South Coast Today (01-04-2016)

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.

“North Carolina: The Beaches Are Moving,” A Video featuring Orrin Pilkey, PhD
World famous coastal geologist Orrin H. Pilkey takes us to the beach and explains why erosion has become a problem…

The Texas Coastline Is Slowly Disappearing. Here’s How One Community Is Coping

coastal-restauration-NY
Coastal restoration. Photograph: © SAF — Coastal Care

Excerpts;

The Lone Star State’s shoreline is experiencing one of the highest rates of land loss of any coastal area in the country due to a combination of subsidence, sea level rise and storm surges…

Read Full Article, Houston Public Media (01-02-2018)

Looking to Holland to find more sand for Galveston Island, Texas; HPM University of Houston (08-30-2016)

County meets with state for coastal erosion plan, Texas; PaNews (11-26-2016)
A coastline that is resilient in response to coastal hazards is one that maintains a strong ecological foundation, according to the Preview of the Texas General Land Office’s Texas Coastal Resiliency Master Plan. The estimated cost for the restoration of beaches and dunes for Region 1 that runs from Orange County to Brazoria County, would be for a total of $540 million to $1.4 billion…

“Living Shorelines” Will Get Fast Track to Combat Sea Level Rise, Scientific American (07-06-2016)

Living shorelines a more natural approach to preventing coastal erosion, WNCT (05-18-2016)
For centuries, large bulkheads have been used to help control erosion along coastlines. More recent research suggests that a natural approach may be a better alternative. Having nature on your side, especially during a storm or hurricane, is proven to provide better protection from coastal erosion…

Living Shorelines: Better Than Bulkheads, Coastal Review Online (02-08-2016)
More than 14,000 miles – 14 percent of continental U.S. coastline — has been armored with hardened structures. Hardened structures cause elevated rates of erosion on the shoreward side of the structure…

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.

NOAA Study Finds Marshes, Reefs, Beaches Can Enhance Coastal Resilience, NOAA (04-29-2015)

Coastal erosion needs our attention, South Coast Today (01-04-2016)

NOAA study finds ‘living shorelines’ can lessen climate change’s effects, NOAA (12-22-2015)

Living Shorelines


Coastal restoration, living shorelines. Photograph: © SAF — Coastal Care

Excerpts;

“Living Shoreline Techniques in the Marine District of New York, ” a document produced by the New York State Department of Environmental Conservation, lays out an approach to the coast that the U.S. Army Corps of Engineers should heed.

It “emphasizes natural and nature-based solution to erosion control that will protect New Yorkers and the environment…”

Read Full Article, Huffington Green (12-20-2017)

DEC Announces Guidance for Living Shorelines; DEC New York State (11-17-2017)
New York State Department of Environmental Conservation (DEC) Commissioner Basil Segos announced new guidance, “Living Shoreline Techniques in the Marine District of New York State,” that emphasizes natural and nature-based solutions to erosion control that will protect New Yorkers and the environment…

“Living Shorelines” Will Get Fast Track to Combat Sea Level Rise; Scientific American (07-06-2016)
As sea levels rise along U.S. coasts, it may soon get easier for people and local governments to obtain federal permits to build what are known as “living shorelines,” natural or nature-based structures designed to protect communities and infrastructure from extreme storms and flooding even as they protect habitat.

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.

On N.H.’s Coast, Preparing for Future Storms with Grass, Sand and a Bit of Time, NHPR (11-09-2017)

Living shorelines a more natural approach to preventing coastal erosion, WNCT (05-18-2016)

Living Shorelines: Better Than Bulkheads, Coastal Review Online (02-08-2016)
More than 14,000 miles – 14 percent of continental U.S. coastline — has been armored with hardened structures. Hardened structures cause elevated rates of erosion on the shoreward side of the structure…

NOAA Study Finds Marshes, Reefs, Beaches Can Enhance Coastal Resilience, NOAA (04-29-2015)

NOAA study finds ‘living shorelines’ can lessen climate change’s effects, NOAA (12-22-2015)

‘Sand mattress’ technology to combat Mother Nature at Kuhio Beach

waikiki-beach-renourishment
Waikiki beach-renourishement, 2012. Photograph: © SAF — Coastal Care.
“Hawaii’s famed Waikiki Beach started to erode again, less than a year after the completion of a $2.2 million project to replenish the sand on about 1,730 feet of shoreline that had been suffering from chronic erosion.”Captions.
“Development is absolutely responsible for the majority of the beach nourishment,” Andrew Coburn, assistant director of The Program for the Study of Developed Shorelines at Western Carolina University, said. “Well over 99 percent of the shorelines that are nourished are developed so there is some economic value placed behind them.”

Excerpts;

Erosion in Waikiki has been a long-time concern and the City and County of Honolulu is once again looking for solutions to combat the problem…

Read Full Article, KHON News (12-17-2017)

Waikiki Beach Is Totally Man-Made And Disappearing. Can Hawaii Save It?Huffington Green (03-10-2015)

Doubling of Coastal Erosion by Mid-Century in Hawai’i, Science Daily (03-24-2015)
Chronic erosion dominates the sandy beaches of Hawai’i, causing beach loss as it damages homes, infrastructure, and critical habitat. Researchers have long understood that global sea level rise will affect the rate of coastal erosion. However, new research indicates that coastal erosion of Hawai’i’s beaches may double by mid-century…

Seawalls: Ecological effects of coastal armoring in soft sediment environments; Science Daily (07-24-2017)
For nearly a century, America’s coasts — particularly those with large urban populations — have been armored with human made structures such as seawalls. These structures essentially draw a line in the sand that constrains the ability of the shoreline to respond to changes in sea level and other dynamic coastal processes…

“Seawalls Kill Beaches,” Open Letters by Warner Chabot And Rob Young; (10-03-2014)

Living on the shores of Hawaii: natural hazards, the environment, and our communities, A book by Chip Fletcher; Robynne Boyd, William J. Neal and Virginia Tice.
“Living on the shores of Hawaii: natural hazards, the environment, and our communities” addresses a wide range of environmental concerns within the context of sustainability and their influence on the future of Hawaii…

Sandbagging at the Shore: North Carolina’s Coastal Sand Bags and Political Sandbaggers; By William Neal, Orrin Pilkey & Norma Longo;
The wonder of modern English is how social use of language expands and changes the meaning of words. Sand bag is a bag filled with sand used for temporary construction—quickly made, easily transported, and easily removed. Typically, sandbagging is the emplacement of sand bags to construct a temporary protective wall or barrier, such as a dike or dam to hold back flood waters , or protection on the battlefield. But the term ‘sandbagging’ has taken on an array of other meanings…

Protecting The Netherlands’ Vulnerable Coasts With A ‘Sand Motor’; NPR (11-25-2017)

Are we loving our beaches to death? Survey says ‘yes’; Bay of Plenty Times (01-13-2017)

Let’s end war with ocean, Op-Ed by Orrin H. Pilkey
The immediate future most certainly holds more miles of sandbags, resulting in more narrowed and ugly beaches.But this trend can be halted and reversed. Now is the time to make peace with the ocean.The time is now to stop sandbagging, both physically with no more shore-hardening structures, and politically with no more exceptions to the intent of the rules, no more undermining existing legislation, and a return to enforcement…

“”The Beaches Are Moving,” A Video featuring Orrin Pilkey, PhD
World famous coastal geologist Orrin H. Pilkey takes us to the beach and explains why erosion has become a problem…

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.