Archinect - News

A historic home in Cape Cod is teetering on the brink after this weekend’s bomb cyclone

2022-02-02T10:39:00-05:00

The blizzard over the weekend dumped more than two feet of snow in many areas, while also inflicting major damage to communities along the Massachusetts coastline. In Truro, a house was left suspended on stilts over a beach after violent waves from the blizzard’s storm surge essentially washed away its remaining foundation.

The home was once owned and operated by the U.S. Coast Guard and was subject to a hastened attempt late last week by the homeowner to stabilize its pilings and prevent a total loss after a January 17th storm eroded nearly 20 feet of beach from the front of the property. A 2016 profile of the beach community published by The Seattle Times revealed a rare “managed retreat” organized amongst the locals. The town said the owners have made plans to move back their property in a press statement released just prior to the storm.

The $1.5 million property was almost entirely fronted by a large dune only only a few short months ago which has now almost completely eroded, leaving a dramatic impression on anyone with an eye on the disappearing backside of the Cape’s 70-mile shoreline. Globally, similar beaches are expected to lose about 22,430 miles of sand to erosion over the next 30 years, a figure that will nearly triple by the end of the century.

Drone footage of house nearly falling int...

New Google Arts & Culture initiative documents the threat of climate change to Unesco World Heritage sites

2020-02-06T16:14:00-05:00

Google Arts & Culture has launched a new online initiative calling attention to five Unesco World Heritage sites under threat from climate change. The Heritage on the Edge series reveals how rising sea levels, coastal erosion and extreme weather patterns are endangering landmarks across the world [...].

The five threatened Unesco World Heritage sites featured in the online Heritage on the Edge exhibit are Easter Island's iconic moai statues of Rapa Nui; the Old and New Towns of Scotland's capital Edinburgh; the flood-prone mosque city of Bagerhat in Bangladesh; Tanzania's port city of Kilwa Kisiwani endangered by coastal erosion; and the pre-Columbian adobe metropolis of Chan Chan, Peruvian at risk of drought and storms.

Image via Heritage on the Edge

"Above all, the project is a call to action," writes Professor Dr. Toshiyuki Kono, President of the International Council on Monuments and Sites, in a recent Google blog post. "Heritage on the Edge collects stories of loss, but also of hope and resilience. They remind us that all our cultural heritage, including these iconic World Heritage Sites, are more than just tourist destinations. They are places of great national, spiritual and cultural significance."

Heritage on the Edge. Video via Google Arts & Culture on YouTube.

"The realit...

As the rising Pacific slowly swallows California's beaches, managed retreat becomes a dividing topic in coastal cities

2019-07-09T08:00:00-04:00

While other regions grappled with destructive waves and rising seas, the West Coast for decades was spared by a rare confluence of favorable winds and cooler water. This “sea level rise suppression,” as scientists call it, went largely undetected. [...] But lines in the sand are meant to shift. In the last 100 years, the sea rose less than 9 inches in California. By the end of this century, the surge could be greater than 9 feet.

In her LA Times long read, Rosanna Xia tells the tale of coastal cities up and down the Golden State and their increasing struggles to defend beaches, infrastructure, and (mostly pricey) properties against the rising sea that relentlessly chews away on a coastline many perceived as permanent.

"Retreat is as un-American as it gets, neighborhood groups declared. To win, California must defend," Xia writes. "But at what cost? Should California become one long wall of concrete against the ocean? Will there still be sandy beaches or surf breaks to cherish in the future, oceanfront homes left to dream about? More than $150 billion in property could be at risk of flooding by 2100 — the economic damage far more devastating than the state’s worst earthquakes and wildfires."

The mystery of how Roman concrete has withstood the sea for millennia is finally solved

2017-07-06T13:09:00-04:00

Modern, steel-embedded concrete seawalls tend to need repair after a few decades of erosion from the endless procession of waves, but the Roman pier at Portus Cosanus in Orbetello, Italy has remained solid for almost two thousand years. Scientists have finally figured out the missing ingredient of this material's longevity, and it turns out to be mineral growth after the concrete has set.

Ancient Roman Seawall at Portus Cosanus in Orbetello. Image: Wikimapia

This concept of concrete that grows after it has been set is something that others have been experimenting with recently, but The Telegraph breaks this new discovery down thusly:

Roman engineers made concrete by mixing volcanic ash with lime and seawater to make a mortar, and then added chunks of volcanic rock. The combination of ash, water, and lime produces what is called a pozzolanic reaction, named after the city of Pozzuoli in the Bay of Naples, triggering the formation of crystals in the gaps of the mixture as it sets.

Th...

Cliff-side apartments on the brink of collapse following El Niño storms in California

2016-01-29T13:24:00-05:00

California apartments with commanding views of the Pacific are now in danger of collapsing into the ocean. Erosion blamed on El Niño rains is tearing away at the cliffs of Pacifica, just outside San Francisco. Drone footage shows how volatile the situation is, and how close to the literal edge some apartments are

To better predict sea level rise, scientists resort to crowdsourcing and ask drone owners to help create data

2016-01-19T14:24:00-05:00

Using drones for aerial photography has been a source of controversy for several years now. But amid increasing concerns over privacy and safety, some conservation scientists are hoping drone owners will help them to document sea level rise. With an expected increase in storm activity in the Pacific Ocean this winter, scientists believe they are getting a glimpse of the impacts of climate change on coastlines.

To see an interactive example of a DroneDeploy-stitched high-resolution map, click here.